diff --git a/bower.json b/bower.json
index 4e3a6399..519695c3 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "dagre",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "main": [
     "dist/dagre.core.js",
     "dist/dagre.core.min.js"
diff --git a/dist/dagre.core.js b/dist/dagre.core.js
index b606f736..f6314151 100644
--- a/dist/dagre.core.js
+++ b/dist/dagre.core.js
@@ -1997,6 +1997,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
   // We use local variables for these parameters instead of manipulating the
   // graph because it becomes more verbose to access them in a chained manner.
   var shift = {},
+      shiftNeighbor = {},
       sink = {},
       xs = {},
       pred = {},
@@ -2013,7 +2014,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
 
   _.each(g.nodes(), function(v) {
     if (root[v] === v) {
-      placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v);
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v);
     }
   });
 
@@ -2024,6 +2025,12 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
       // http://www.inf.uni-konstanz.de/~brandes/publications/ for details.
       if (v === root[v] && shift[sink[root[v]]] < Number.POSITIVE_INFINITY) {
         xs[v] += shift[sink[root[v]]];
+
+        // Cascade shifts as necessary
+        var w = shiftNeighbor[sink[root[v]]];
+        if (w && shift[w] !== Number.POSITIVE_INFINITY) {
+          xs[v] += shift[w];
+        }
       }
     });
   });
@@ -2031,7 +2038,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
   return xs;
 }
 
-function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
+function placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v) {
   if (_.has(xs, v)) return;
   xs[v] = 0;
 
@@ -2040,7 +2047,7 @@ function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
   do {
     if (pred[w]) {
       u = root[pred[w]];
-      placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, u);
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, u);
       if (sink[v] === v) {
         sink[v] = sink[u];
       }
@@ -2048,6 +2055,7 @@ function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
       var delta = sepFn(g, w, pred[w]);
       if (sink[v] !== sink[u]) {
         shift[sink[u]] = Math.min(shift[sink[u]], xs[v] - xs[u] - delta);
+        shiftNeighbor[sink[u]] = sink[v];
       } else {
         xs[v] = Math.max(xs[v], xs[u] + delta);
       }
@@ -2891,7 +2899,7 @@ function notime(name, fn) {
 }
 
 },{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){
-module.exports = "0.6.3";
+module.exports = "0.6.4";
 
 },{}]},{},[1])(1)
 });
\ No newline at end of file
diff --git a/dist/dagre.core.min.js b/dist/dagre.core.min.js
index 686f962a..753cf3bd 100644
--- a/dist/dagre.core.min.js
+++ b/dist/dagre.core.min.js
@@ -1,2 +1,2 @@
 !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.dagre=e()}}(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){module.exports={graphlib:require("./lib/graphlib"),layout:require("./lib/layout"),debug:require("./lib/debug"),util:{time:require("./lib/util").time,notime:require("./lib/util").notime},version:require("./lib/version")}},{"./lib/debug":6,"./lib/graphlib":7,"./lib/layout":9,"./lib/util":29,"./lib/version":30}],2:[function(require,module,exports){"use strict";var _=require("./lodash"),greedyFAS=require("./greedy-fas");module.exports={run:run,undo:undo};function run(g){var fas=g.graph().acyclicer==="greedy"?greedyFAS(g,weightFn(g)):dfsFAS(g);_.each(fas,function(e){var label=g.edge(e);g.removeEdge(e);label.forwardName=e.name;label.reversed=true;g.setEdge(e.w,e.v,label,_.uniqueId("rev"))});function weightFn(g){return function(e){return g.edge(e).weight}}}function dfsFAS(g){var fas=[],stack={},visited={};function dfs(v){if(_.has(visited,v)){return}visited[v]=true;stack[v]=true;_.each(g.outEdges(v),function(e){if(_.has(stack,e.w)){fas.push(e)}else{dfs(e.w)}});delete stack[v]}_.each(g.nodes(),dfs);return fas}function undo(g){_.each(g.edges(),function(e){var label=g.edge(e);if(label.reversed){g.removeEdge(e);var forwardName=label.forwardName;delete label.reversed;delete label.forwardName;g.setEdge(e.w,e.v,label,forwardName)}})}},{"./greedy-fas":8,"./lodash":10}],3:[function(require,module,exports){var _=require("./lodash"),util=require("./util");module.exports=addBorderSegments;function addBorderSegments(g){function dfs(v){var children=g.children(v),node=g.node(v);if(children.length){_.each(children,dfs)}if(_.has(node,"minRank")){node.borderLeft=[];node.borderRight=[];for(var rank=node.minRank,maxRank=node.maxRank+1;rank<maxRank;++rank){addBorderNode(g,"borderLeft","_bl",v,node,rank);addBorderNode(g,"borderRight","_br",v,node,rank)}}}_.each(g.children(),dfs)}function addBorderNode(g,prop,prefix,sg,sgNode,rank){var label={width:0,height:0,rank:rank},prev=sgNode[prop][rank-1],curr=util.addDummyNode(g,"border",label,prefix);sgNode[prop][rank]=curr;g.setParent(curr,sg);if(prev){g.setEdge(prev,curr,{weight:1})}}},{"./lodash":10,"./util":29}],4:[function(require,module,exports){"use strict";var _=require("./lodash");module.exports={adjust:adjust,undo:undo};function adjust(g){var rankDir=g.graph().rankdir.toLowerCase();if(rankDir==="lr"||rankDir==="rl"){swapWidthHeight(g)}}function undo(g){var rankDir=g.graph().rankdir.toLowerCase();if(rankDir==="bt"||rankDir==="rl"){reverseY(g)}if(rankDir==="lr"||rankDir==="rl"){swapXY(g);swapWidthHeight(g)}}function swapWidthHeight(g){_.each(g.nodes(),function(v){swapWidthHeightOne(g.node(v))});_.each(g.edges(),function(e){swapWidthHeightOne(g.edge(e))})}function swapWidthHeightOne(attrs){var w=attrs.width;attrs.width=attrs.height;attrs.height=w}function reverseY(g){_.each(g.nodes(),function(v){reverseYOne(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,reverseYOne);if(_.has(edge,"y")){reverseYOne(edge)}})}function reverseYOne(attrs){attrs.y=-attrs.y}function swapXY(g){_.each(g.nodes(),function(v){swapXYOne(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,swapXYOne);if(_.has(edge,"x")){swapXYOne(edge)}})}function swapXYOne(attrs){var x=attrs.x;attrs.x=attrs.y;attrs.y=x}},{"./lodash":10}],5:[function(require,module,exports){module.exports=List;function List(){var sentinel={};sentinel._next=sentinel._prev=sentinel;this._sentinel=sentinel}List.prototype.dequeue=function(){var sentinel=this._sentinel,entry=sentinel._prev;if(entry!==sentinel){unlink(entry);return entry}};List.prototype.enqueue=function(entry){var sentinel=this._sentinel;if(entry._prev&&entry._next){unlink(entry)}entry._next=sentinel._next;sentinel._next._prev=entry;sentinel._next=entry;entry._prev=sentinel};List.prototype.toString=function(){var strs=[],sentinel=this._sentinel,curr=sentinel._prev;while(curr!==sentinel){strs.push(JSON.stringify(curr,filterOutLinks));curr=curr._prev}return"["+strs.join(", ")+"]"};function unlink(entry){entry._prev._next=entry._next;entry._next._prev=entry._prev;delete entry._next;delete entry._prev}function filterOutLinks(k,v){if(k!=="_next"&&k!=="_prev"){return v}}},{}],6:[function(require,module,exports){var _=require("./lodash"),util=require("./util"),Graph=require("./graphlib").Graph;module.exports={debugOrdering:debugOrdering};function debugOrdering(g){var layerMatrix=util.buildLayerMatrix(g);var h=new Graph({compound:true,multigraph:true}).setGraph({});_.each(g.nodes(),function(v){h.setNode(v,{label:v});h.setParent(v,"layer"+g.node(v).rank)});_.each(g.edges(),function(e){h.setEdge(e.v,e.w,{},e.name)});_.each(layerMatrix,function(layer,i){var layerV="layer"+i;h.setNode(layerV,{rank:"same"});_.reduce(layer,function(u,v){h.setEdge(u,v,{style:"invis"});return v})});return h}},{"./graphlib":7,"./lodash":10,"./util":29}],7:[function(require,module,exports){var graphlib;if(require){try{graphlib=require("graphlib")}catch(e){}}if(!graphlib){graphlib=window.graphlib}module.exports=graphlib},{graphlib:undefined}],8:[function(require,module,exports){var _=require("./lodash"),Graph=require("./graphlib").Graph,List=require("./data/list");module.exports=greedyFAS;var DEFAULT_WEIGHT_FN=_.constant(1);function greedyFAS(g,weightFn){if(g.nodeCount()<=1){return[]}var state=buildState(g,weightFn||DEFAULT_WEIGHT_FN);var results=doGreedyFAS(state.graph,state.buckets,state.zeroIdx);return _.flatten(_.map(results,function(e){return g.outEdges(e.v,e.w)}),true)}function doGreedyFAS(g,buckets,zeroIdx){var results=[],sources=buckets[buckets.length-1],sinks=buckets[0];var entry;while(g.nodeCount()){while(entry=sinks.dequeue()){removeNode(g,buckets,zeroIdx,entry)}while(entry=sources.dequeue()){removeNode(g,buckets,zeroIdx,entry)}if(g.nodeCount()){for(var i=buckets.length-2;i>0;--i){entry=buckets[i].dequeue();if(entry){results=results.concat(removeNode(g,buckets,zeroIdx,entry,true));break}}}}return results}function removeNode(g,buckets,zeroIdx,entry,collectPredecessors){var results=collectPredecessors?[]:undefined;_.each(g.inEdges(entry.v),function(edge){var weight=g.edge(edge),uEntry=g.node(edge.v);if(collectPredecessors){results.push({v:edge.v,w:edge.w})}uEntry.out-=weight;assignBucket(buckets,zeroIdx,uEntry)});_.each(g.outEdges(entry.v),function(edge){var weight=g.edge(edge),w=edge.w,wEntry=g.node(w);wEntry.in-=weight;assignBucket(buckets,zeroIdx,wEntry)});g.removeNode(entry.v);return results}function buildState(g,weightFn){var fasGraph=new Graph,maxIn=0,maxOut=0;_.each(g.nodes(),function(v){fasGraph.setNode(v,{v:v,"in":0,out:0})});_.each(g.edges(),function(e){var prevWeight=fasGraph.edge(e.v,e.w)||0,weight=weightFn(e),edgeWeight=prevWeight+weight;fasGraph.setEdge(e.v,e.w,edgeWeight);maxOut=Math.max(maxOut,fasGraph.node(e.v).out+=weight);maxIn=Math.max(maxIn,fasGraph.node(e.w).in+=weight)});var buckets=_.range(maxOut+maxIn+3).map(function(){return new List});var zeroIdx=maxIn+1;_.each(fasGraph.nodes(),function(v){assignBucket(buckets,zeroIdx,fasGraph.node(v))});return{graph:fasGraph,buckets:buckets,zeroIdx:zeroIdx}}function assignBucket(buckets,zeroIdx,entry){if(!entry.out){buckets[0].enqueue(entry)}else if(!entry.in){buckets[buckets.length-1].enqueue(entry)}else{buckets[entry.out-entry.in+zeroIdx].enqueue(entry)}}},{"./data/list":5,"./graphlib":7,"./lodash":10}],9:[function(require,module,exports){"use strict";var _=require("./lodash"),acyclic=require("./acyclic"),normalize=require("./normalize"),rank=require("./rank"),normalizeRanks=require("./util").normalizeRanks,parentDummyChains=require("./parent-dummy-chains"),removeEmptyRanks=require("./util").removeEmptyRanks,nestingGraph=require("./nesting-graph"),addBorderSegments=require("./add-border-segments"),coordinateSystem=require("./coordinate-system"),order=require("./order"),position=require("./position"),util=require("./util"),Graph=require("./graphlib").Graph;module.exports=layout;function layout(g,opts){var time=opts&&opts.debugTiming?util.time:util.notime;time("layout",function(){var layoutGraph=time("  buildLayoutGraph",function(){return buildLayoutGraph(g)});time("  runLayout",function(){runLayout(layoutGraph,time)});time("  updateInputGraph",function(){updateInputGraph(g,layoutGraph)})})}function runLayout(g,time){time("    makeSpaceForEdgeLabels",function(){makeSpaceForEdgeLabels(g)});time("    removeSelfEdges",function(){removeSelfEdges(g)});time("    acyclic",function(){acyclic.run(g)});time("    nestingGraph.run",function(){nestingGraph.run(g)});time("    rank",function(){rank(util.asNonCompoundGraph(g))});time("    injectEdgeLabelProxies",function(){injectEdgeLabelProxies(g)});time("    removeEmptyRanks",function(){removeEmptyRanks(g)});time("    nestingGraph.cleanup",function(){nestingGraph.cleanup(g)});time("    normalizeRanks",function(){normalizeRanks(g)});time("    assignRankMinMax",function(){assignRankMinMax(g)});time("    removeEdgeLabelProxies",function(){removeEdgeLabelProxies(g)});time("    normalize.run",function(){normalize.run(g)});time("    parentDummyChains",function(){parentDummyChains(g)});time("    addBorderSegments",function(){addBorderSegments(g)});time("    order",function(){order(g)});time("    insertSelfEdges",function(){insertSelfEdges(g)});time("    adjustCoordinateSystem",function(){coordinateSystem.adjust(g)});time("    position",function(){position(g)});time("    positionSelfEdges",function(){positionSelfEdges(g)});time("    removeBorderNodes",function(){removeBorderNodes(g)});time("    normalize.undo",function(){normalize.undo(g)});time("    fixupEdgeLabelCoords",function(){fixupEdgeLabelCoords(g)});time("    undoCoordinateSystem",function(){coordinateSystem.undo(g)});time("    translateGraph",function(){translateGraph(g)});time("    assignNodeIntersects",function(){assignNodeIntersects(g)});time("    reversePoints",function(){reversePointsForReversedEdges(g)});time("    acyclic.undo",function(){acyclic.undo(g)})}function updateInputGraph(inputGraph,layoutGraph){_.each(inputGraph.nodes(),function(v){var inputLabel=inputGraph.node(v),layoutLabel=layoutGraph.node(v);if(inputLabel){inputLabel.x=layoutLabel.x;inputLabel.y=layoutLabel.y;if(layoutGraph.children(v).length){inputLabel.width=layoutLabel.width;inputLabel.height=layoutLabel.height}}});_.each(inputGraph.edges(),function(e){var inputLabel=inputGraph.edge(e),layoutLabel=layoutGraph.edge(e);inputLabel.points=layoutLabel.points;if(_.has(layoutLabel,"x")){inputLabel.x=layoutLabel.x;inputLabel.y=layoutLabel.y}});inputGraph.graph().width=layoutGraph.graph().width;inputGraph.graph().height=layoutGraph.graph().height}var graphNumAttrs=["nodesep","edgesep","ranksep","marginx","marginy"],graphDefaults={ranksep:50,edgesep:20,nodesep:50,rankdir:"tb"},graphAttrs=["acyclicer","ranker","rankdir","align"],nodeNumAttrs=["width","height"],nodeDefaults={width:0,height:0},edgeNumAttrs=["minlen","weight","width","height","labeloffset"],edgeDefaults={minlen:1,weight:1,width:0,height:0,labeloffset:10,labelpos:"r"},edgeAttrs=["labelpos"];function buildLayoutGraph(inputGraph){var g=new Graph({multigraph:true,compound:true}),graph=canonicalize(inputGraph.graph());g.setGraph(_.merge({},graphDefaults,selectNumberAttrs(graph,graphNumAttrs),_.pick(graph,graphAttrs)));_.each(inputGraph.nodes(),function(v){var node=canonicalize(inputGraph.node(v));g.setNode(v,_.defaults(selectNumberAttrs(node,nodeNumAttrs),nodeDefaults));g.setParent(v,inputGraph.parent(v))});_.each(inputGraph.edges(),function(e){var edge=canonicalize(inputGraph.edge(e));g.setEdge(e,_.merge({},edgeDefaults,selectNumberAttrs(edge,edgeNumAttrs),_.pick(edge,edgeAttrs)))});return g}function makeSpaceForEdgeLabels(g){var graph=g.graph();graph.ranksep/=2;_.each(g.edges(),function(e){var edge=g.edge(e);edge.minlen*=2;if(edge.labelpos.toLowerCase()!=="c"){if(graph.rankdir==="TB"||graph.rankdir==="BT"){edge.width+=edge.labeloffset}else{edge.height+=edge.labeloffset}}})}function injectEdgeLabelProxies(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.width&&edge.height){var v=g.node(e.v),w=g.node(e.w),label={rank:(w.rank-v.rank)/2+v.rank,e:e};util.addDummyNode(g,"edge-proxy",label,"_ep")}})}function assignRankMinMax(g){var maxRank=0;_.each(g.nodes(),function(v){var node=g.node(v);if(node.borderTop){node.minRank=g.node(node.borderTop).rank;node.maxRank=g.node(node.borderBottom).rank;maxRank=_.max(maxRank,node.maxRank)}});g.graph().maxRank=maxRank}function removeEdgeLabelProxies(g){_.each(g.nodes(),function(v){var node=g.node(v);if(node.dummy==="edge-proxy"){g.edge(node.e).labelRank=node.rank;g.removeNode(v)}})}function translateGraph(g){var minX=Number.POSITIVE_INFINITY,maxX=0,minY=Number.POSITIVE_INFINITY,maxY=0,graphLabel=g.graph(),marginX=graphLabel.marginx||0,marginY=graphLabel.marginy||0;function getExtremes(attrs){var x=attrs.x,y=attrs.y,w=attrs.width,h=attrs.height;minX=Math.min(minX,x-w/2);maxX=Math.max(maxX,x+w/2);minY=Math.min(minY,y-h/2);maxY=Math.max(maxY,y+h/2)}_.each(g.nodes(),function(v){getExtremes(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);if(_.has(edge,"x")){getExtremes(edge)}});minX-=marginX;minY-=marginY;_.each(g.nodes(),function(v){var node=g.node(v);node.x-=minX;node.y-=minY});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,function(p){p.x-=minX;p.y-=minY});if(_.has(edge,"x")){edge.x-=minX}if(_.has(edge,"y")){edge.y-=minY}});graphLabel.width=maxX-minX+marginX;graphLabel.height=maxY-minY+marginY}function assignNodeIntersects(g){_.each(g.edges(),function(e){var edge=g.edge(e),nodeV=g.node(e.v),nodeW=g.node(e.w),p1,p2;if(!edge.points){edge.points=[];p1=nodeW;p2=nodeV}else{p1=edge.points[0];p2=edge.points[edge.points.length-1]}edge.points.unshift(util.intersectRect(nodeV,p1));edge.points.push(util.intersectRect(nodeW,p2))})}function fixupEdgeLabelCoords(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(_.has(edge,"x")){if(edge.labelpos==="l"||edge.labelpos==="r"){edge.width-=edge.labeloffset}switch(edge.labelpos){case"l":edge.x-=edge.width/2+edge.labeloffset;break;case"r":edge.x+=edge.width/2+edge.labeloffset;break}}})}function reversePointsForReversedEdges(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.reversed){edge.points.reverse()}})}function removeBorderNodes(g){_.each(g.nodes(),function(v){if(g.children(v).length){var node=g.node(v),t=g.node(node.borderTop),b=g.node(node.borderBottom),l=g.node(_.last(node.borderLeft)),r=g.node(_.last(node.borderRight));node.width=Math.abs(r.x-l.x);node.height=Math.abs(b.y-t.y);node.x=l.x+node.width/2;node.y=t.y+node.height/2}});_.each(g.nodes(),function(v){if(g.node(v).dummy==="border"){g.removeNode(v)}})}function removeSelfEdges(g){_.each(g.edges(),function(e){if(e.v===e.w){var node=g.node(e.v);if(!node.selfEdges){node.selfEdges=[]}node.selfEdges.push({e:e,label:g.edge(e)});g.removeEdge(e)}})}function insertSelfEdges(g){var layers=util.buildLayerMatrix(g);_.each(layers,function(layer){var orderShift=0;_.each(layer,function(v,i){var node=g.node(v);node.order=i+orderShift;_.each(node.selfEdges,function(selfEdge){util.addDummyNode(g,"selfedge",{width:selfEdge.label.width,height:selfEdge.label.height,rank:node.rank,order:i+ ++orderShift,e:selfEdge.e,label:selfEdge.label},"_se")});delete node.selfEdges})})}function positionSelfEdges(g){_.each(g.nodes(),function(v){var node=g.node(v);if(node.dummy==="selfedge"){var selfNode=g.node(node.e.v),x=selfNode.x+selfNode.width/2,y=selfNode.y,dx=node.x-x,dy=selfNode.height/2;g.setEdge(node.e,node.label);g.removeNode(v);node.label.points=[{x:x+2*dx/3,y:y-dy},{x:x+5*dx/6,y:y-dy},{x:x+dx,y:y},{x:x+5*dx/6,y:y+dy},{x:x+2*dx/3,y:y+dy}];node.label.x=node.x;node.label.y=node.y}})}function selectNumberAttrs(obj,attrs){return _.mapValues(_.pick(obj,attrs),Number)}function canonicalize(attrs){var newAttrs={};_.each(attrs,function(v,k){newAttrs[k.toLowerCase()]=v});return newAttrs}},{"./acyclic":2,"./add-border-segments":3,"./coordinate-system":4,"./graphlib":7,"./lodash":10,"./nesting-graph":11,"./normalize":12,"./order":17,"./parent-dummy-chains":22,"./position":24,"./rank":26,"./util":29}],10:[function(require,module,exports){var lodash;if(require){try{lodash=require("lodash")}catch(e){}}if(!lodash){lodash=window._}module.exports=lodash},{lodash:undefined}],11:[function(require,module,exports){var _=require("./lodash"),util=require("./util");module.exports={run:run,cleanup:cleanup};function run(g){var root=util.addDummyNode(g,"root",{},"_root"),depths=treeDepths(g),height=_.max(depths)-1,nodeSep=2*height+1;g.graph().nestingRoot=root;_.each(g.edges(),function(e){g.edge(e).minlen*=nodeSep});var weight=sumWeights(g)+1;_.each(g.children(),function(child){dfs(g,root,nodeSep,weight,height,depths,child)});g.graph().nodeRankFactor=nodeSep}function dfs(g,root,nodeSep,weight,height,depths,v){var children=g.children(v);if(!children.length){if(v!==root){g.setEdge(root,v,{weight:0,minlen:nodeSep})}return}var top=util.addBorderNode(g,"_bt"),bottom=util.addBorderNode(g,"_bb"),label=g.node(v);g.setParent(top,v);label.borderTop=top;g.setParent(bottom,v);label.borderBottom=bottom;_.each(children,function(child){dfs(g,root,nodeSep,weight,height,depths,child);var childNode=g.node(child),childTop=childNode.borderTop?childNode.borderTop:child,childBottom=childNode.borderBottom?childNode.borderBottom:child,thisWeight=childNode.borderTop?weight:2*weight,minlen=childTop!==childBottom?1:height-depths[v]+1;g.setEdge(top,childTop,{weight:thisWeight,minlen:minlen,nestingEdge:true});g.setEdge(childBottom,bottom,{weight:thisWeight,minlen:minlen,nestingEdge:true})});if(!g.parent(v)){g.setEdge(root,top,{weight:0,minlen:height+depths[v]})}}function treeDepths(g){var depths={};function dfs(v,depth){var children=g.children(v);if(children&&children.length){_.each(children,function(child){dfs(child,depth+1)})}depths[v]=depth}_.each(g.children(),function(v){dfs(v,1)});return depths}function sumWeights(g){return _.reduce(g.edges(),function(acc,e){return acc+g.edge(e).weight},0)}function cleanup(g){var graphLabel=g.graph();g.removeNode(graphLabel.nestingRoot);delete graphLabel.nestingRoot;_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.nestingEdge){g.removeEdge(e)}})}},{"./lodash":10,"./util":29}],12:[function(require,module,exports){"use strict";var _=require("./lodash"),util=require("./util");module.exports={run:run,undo:undo};function run(g){g.graph().dummyChains=[];_.each(g.edges(),function(edge){normalizeEdge(g,edge)})}function normalizeEdge(g,e){var v=e.v,vRank=g.node(v).rank,w=e.w,wRank=g.node(w).rank,name=e.name,edgeLabel=g.edge(e),labelRank=edgeLabel.labelRank;if(wRank===vRank+1)return;g.removeEdge(e);var dummy,attrs,i;for(i=0,++vRank;vRank<wRank;++i,++vRank){edgeLabel.points=[];attrs={width:0,height:0,edgeLabel:edgeLabel,edgeObj:e,rank:vRank};dummy=util.addDummyNode(g,"edge",attrs,"_d");if(vRank===labelRank){attrs.width=edgeLabel.width;attrs.height=edgeLabel.height;attrs.dummy="edge-label";attrs.labelpos=edgeLabel.labelpos}g.setEdge(v,dummy,{weight:edgeLabel.weight},name);if(i===0){g.graph().dummyChains.push(dummy)}v=dummy}g.setEdge(v,w,{weight:edgeLabel.weight},name)}function undo(g){_.each(g.graph().dummyChains,function(v){var node=g.node(v),origLabel=node.edgeLabel,w;g.setEdge(node.edgeObj,origLabel);while(node.dummy){w=g.successors(v)[0];g.removeNode(v);origLabel.points.push({x:node.x,y:node.y});if(node.dummy==="edge-label"){origLabel.x=node.x;origLabel.y=node.y;origLabel.width=node.width;origLabel.height=node.height}v=w;node=g.node(v)}})}},{"./lodash":10,"./util":29}],13:[function(require,module,exports){var _=require("../lodash");module.exports=addSubgraphConstraints;function addSubgraphConstraints(g,cg,vs){var prev={},rootPrev;_.each(vs,function(v){var child=g.parent(v),parent,prevChild;while(child){parent=g.parent(child);if(parent){prevChild=prev[parent];prev[parent]=child}else{prevChild=rootPrev;rootPrev=child}if(prevChild&&prevChild!==child){cg.setEdge(prevChild,child);return}child=parent}})}},{"../lodash":10}],14:[function(require,module,exports){var _=require("../lodash");module.exports=barycenter;function barycenter(g,movable){return _.map(movable,function(v){var inV=g.inEdges(v);if(!inV.length){return{v:v}}else{var result=_.reduce(inV,function(acc,e){var edge=g.edge(e),nodeU=g.node(e.v);return{sum:acc.sum+edge.weight*nodeU.order,weight:acc.weight+edge.weight}},{sum:0,weight:0});return{v:v,barycenter:result.sum/result.weight,weight:result.weight}}})}},{"../lodash":10}],15:[function(require,module,exports){var _=require("../lodash"),Graph=require("../graphlib").Graph;module.exports=buildLayerGraph;function buildLayerGraph(g,rank,relationship){var root=createRootNode(g),result=new Graph({compound:true}).setGraph({root:root}).setDefaultNodeLabel(function(v){return g.node(v)});_.each(g.nodes(),function(v){var node=g.node(v),parent=g.parent(v);if(node.rank===rank||node.minRank<=rank&&rank<=node.maxRank){result.setNode(v);result.setParent(v,parent||root);_.each(g[relationship](v),function(e){var u=e.v===v?e.w:e.v,edge=result.edge(u,v),weight=!_.isUndefined(edge)?edge.weight:0;result.setEdge(u,v,{weight:g.edge(e).weight+weight})});if(_.has(node,"minRank")){result.setNode(v,{borderLeft:node.borderLeft[rank],borderRight:node.borderRight[rank]})}}});return result}function createRootNode(g){var v;while(g.hasNode(v=_.uniqueId("_root")));return v}},{"../graphlib":7,"../lodash":10}],16:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=crossCount;function crossCount(g,layering){var cc=0;for(var i=1;i<layering.length;++i){cc+=twoLayerCrossCount(g,layering[i-1],layering[i])}return cc}function twoLayerCrossCount(g,northLayer,southLayer){var southPos=_.zipObject(southLayer,_.map(southLayer,function(v,i){return i}));var southEntries=_.flatten(_.map(northLayer,function(v){return _.chain(g.outEdges(v)).map(function(e){return{pos:southPos[e.w],weight:g.edge(e).weight}}).sortBy("pos").value()}),true);var firstIndex=1;while(firstIndex<southLayer.length)firstIndex<<=1;var treeSize=2*firstIndex-1;firstIndex-=1;var tree=_.map(new Array(treeSize),function(){return 0});var cc=0;_.each(southEntries.forEach(function(entry){var index=entry.pos+firstIndex;tree[index]+=entry.weight;var weightSum=0;while(index>0){if(index%2){weightSum+=tree[index+1]}index=index-1>>1;tree[index]+=entry.weight}cc+=entry.weight*weightSum}));return cc}},{"../lodash":10}],17:[function(require,module,exports){"use strict";var _=require("../lodash"),initOrder=require("./init-order"),crossCount=require("./cross-count"),sortSubgraph=require("./sort-subgraph"),buildLayerGraph=require("./build-layer-graph"),addSubgraphConstraints=require("./add-subgraph-constraints"),Graph=require("../graphlib").Graph,util=require("../util");module.exports=order;function order(g){var maxRank=util.maxRank(g),downLayerGraphs=buildLayerGraphs(g,_.range(1,maxRank+1),"inEdges"),upLayerGraphs=buildLayerGraphs(g,_.range(maxRank-1,-1,-1),"outEdges");var layering=initOrder(g);assignOrder(g,layering);var bestCC=Number.POSITIVE_INFINITY,best;for(var i=0,lastBest=0;lastBest<4;++i,++lastBest){sweepLayerGraphs(i%2?downLayerGraphs:upLayerGraphs,i%4>=2);layering=util.buildLayerMatrix(g);var cc=crossCount(g,layering);if(cc<bestCC){lastBest=0;best=_.cloneDeep(layering);bestCC=cc}}assignOrder(g,best)}function buildLayerGraphs(g,ranks,relationship){return _.map(ranks,function(rank){return buildLayerGraph(g,rank,relationship)})}function sweepLayerGraphs(layerGraphs,biasRight){var cg=new Graph;_.each(layerGraphs,function(lg){var root=lg.graph().root;var sorted=sortSubgraph(lg,root,cg,biasRight);_.each(sorted.vs,function(v,i){lg.node(v).order=i});addSubgraphConstraints(lg,cg,sorted.vs)})}function assignOrder(g,layering){_.each(layering,function(layer){_.each(layer,function(v,i){g.node(v).order=i})})}},{"../graphlib":7,"../lodash":10,"../util":29,"./add-subgraph-constraints":13,"./build-layer-graph":15,"./cross-count":16,"./init-order":18,"./sort-subgraph":20}],18:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=initOrder;function initOrder(g){var visited={},simpleNodes=_.filter(g.nodes(),function(v){return!g.children(v).length}),maxRank=_.max(_.map(simpleNodes,function(v){return g.node(v).rank})),layers=_.map(_.range(maxRank+1),function(){return[]});function dfs(v){if(_.has(visited,v))return;visited[v]=true;var node=g.node(v);layers[node.rank].push(v);_.each(g.successors(v),dfs)}var orderedVs=_.sortBy(simpleNodes,function(v){return g.node(v).rank});_.each(orderedVs,dfs);return layers}},{"../lodash":10}],19:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=resolveConflicts;function resolveConflicts(entries,cg){var mappedEntries={};_.each(entries,function(entry,i){var tmp=mappedEntries[entry.v]={indegree:0,"in":[],out:[],vs:[entry.v],i:i};if(!_.isUndefined(entry.barycenter)){tmp.barycenter=entry.barycenter;tmp.weight=entry.weight}});_.each(cg.edges(),function(e){var entryV=mappedEntries[e.v],entryW=mappedEntries[e.w];if(!_.isUndefined(entryV)&&!_.isUndefined(entryW)){entryW.indegree++;entryV.out.push(mappedEntries[e.w])}});var sourceSet=_.filter(mappedEntries,function(entry){return!entry.indegree});return doResolveConflicts(sourceSet)}function doResolveConflicts(sourceSet){var entries=[];function handleIn(vEntry){return function(uEntry){if(uEntry.merged){return}if(_.isUndefined(uEntry.barycenter)||_.isUndefined(vEntry.barycenter)||uEntry.barycenter>=vEntry.barycenter){mergeEntries(vEntry,uEntry)}}}function handleOut(vEntry){return function(wEntry){wEntry.in.push(vEntry);if(--wEntry.indegree===0){sourceSet.push(wEntry)}}}while(sourceSet.length){var entry=sourceSet.pop();entries.push(entry);_.each(entry.in.reverse(),handleIn(entry));_.each(entry.out,handleOut(entry))}return _.chain(entries).filter(function(entry){return!entry.merged}).map(function(entry){return _.pick(entry,["vs","i","barycenter","weight"])}).value()}function mergeEntries(target,source){var sum=0,weight=0;if(target.weight){sum+=target.barycenter*target.weight;weight+=target.weight}if(source.weight){sum+=source.barycenter*source.weight;weight+=source.weight}target.vs=source.vs.concat(target.vs);target.barycenter=sum/weight;target.weight=weight;target.i=Math.min(source.i,target.i);source.merged=true}},{"../lodash":10}],20:[function(require,module,exports){var _=require("../lodash"),barycenter=require("./barycenter"),resolveConflicts=require("./resolve-conflicts"),sort=require("./sort");module.exports=sortSubgraph;function sortSubgraph(g,v,cg,biasRight){var movable=g.children(v),node=g.node(v),bl=node?node.borderLeft:undefined,br=node?node.borderRight:undefined,subgraphs={};if(bl){movable=_.filter(movable,function(w){return w!==bl&&w!==br})}var barycenters=barycenter(g,movable);_.each(barycenters,function(entry){if(g.children(entry.v).length){var subgraphResult=sortSubgraph(g,entry.v,cg,biasRight);subgraphs[entry.v]=subgraphResult;if(_.has(subgraphResult,"barycenter")){mergeBarycenters(entry,subgraphResult)}}});var entries=resolveConflicts(barycenters,cg);expandSubgraphs(entries,subgraphs);var result=sort(entries,biasRight);if(bl){result.vs=_.flatten([bl,result.vs,br],true);if(g.predecessors(bl).length){var blPred=g.node(g.predecessors(bl)[0]),brPred=g.node(g.predecessors(br)[0]);if(!_.has(result,"barycenter")){result.barycenter=0;result.weight=0}result.barycenter=(result.barycenter*result.weight+blPred.order+brPred.order)/(result.weight+2);result.weight+=2}}return result}function expandSubgraphs(entries,subgraphs){_.each(entries,function(entry){entry.vs=_.flatten(entry.vs.map(function(v){if(subgraphs[v]){return subgraphs[v].vs}return v}),true)})}function mergeBarycenters(target,other){if(!_.isUndefined(target.barycenter)){target.barycenter=(target.barycenter*target.weight+other.barycenter*other.weight)/(target.weight+other.weight);target.weight+=other.weight}else{target.barycenter=other.barycenter;target.weight=other.weight}}},{"../lodash":10,"./barycenter":14,"./resolve-conflicts":19,"./sort":21}],21:[function(require,module,exports){var _=require("../lodash"),util=require("../util");module.exports=sort;function sort(entries,biasRight){var parts=util.partition(entries,function(entry){return _.has(entry,"barycenter")});var sortable=parts.lhs,unsortable=_.sortBy(parts.rhs,function(entry){return-entry.i}),vs=[],sum=0,weight=0,vsIndex=0;sortable.sort(compareWithBias(!!biasRight));vsIndex=consumeUnsortable(vs,unsortable,vsIndex);_.each(sortable,function(entry){vsIndex+=entry.vs.length;vs.push(entry.vs);sum+=entry.barycenter*entry.weight;weight+=entry.weight;vsIndex=consumeUnsortable(vs,unsortable,vsIndex)});var result={vs:_.flatten(vs,true)};if(weight){result.barycenter=sum/weight;result.weight=weight}return result}function consumeUnsortable(vs,unsortable,index){var last;while(unsortable.length&&(last=_.last(unsortable)).i<=index){unsortable.pop();vs.push(last.vs);index++}return index}function compareWithBias(bias){return function(entryV,entryW){if(entryV.barycenter<entryW.barycenter){return-1}else if(entryV.barycenter>entryW.barycenter){return 1}return!bias?entryV.i-entryW.i:entryW.i-entryV.i}}},{"../lodash":10,"../util":29}],22:[function(require,module,exports){var _=require("./lodash");module.exports=parentDummyChains;function parentDummyChains(g){var postorderNums=postorder(g);_.each(g.graph().dummyChains,function(v){var node=g.node(v),edgeObj=node.edgeObj,pathData=findPath(g,postorderNums,edgeObj.v,edgeObj.w),path=pathData.path,lca=pathData.lca,pathIdx=0,pathV=path[pathIdx],ascending=true;while(v!==edgeObj.w){node=g.node(v);if(ascending){while((pathV=path[pathIdx])!==lca&&g.node(pathV).maxRank<node.rank){pathIdx++}if(pathV===lca){ascending=false}}if(!ascending){while(pathIdx<path.length-1&&g.node(pathV=path[pathIdx+1]).minRank<=node.rank){pathIdx++}pathV=path[pathIdx]}g.setParent(v,pathV);v=g.successors(v)[0]}})}function findPath(g,postorderNums,v,w){var vPath=[],wPath=[],low=Math.min(postorderNums[v].low,postorderNums[w].low),lim=Math.max(postorderNums[v].lim,postorderNums[w].lim),parent,lca;parent=v;do{parent=g.parent(parent);vPath.push(parent)}while(parent&&(postorderNums[parent].low>low||lim>postorderNums[parent].lim));lca=parent;parent=w;while((parent=g.parent(parent))!==lca){wPath.push(parent)}return{path:vPath.concat(wPath.reverse()),lca:lca}}function postorder(g){var result={},lim=0;function dfs(v){var low=lim;_.each(g.children(v),dfs);result[v]={low:low,lim:lim++}}_.each(g.children(),dfs);return result}},{"./lodash":10}],23:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util");module.exports={positionX:positionX,findType1Conflicts:findType1Conflicts,findType2Conflicts:findType2Conflicts,addConflict:addConflict,hasConflict:hasConflict,verticalAlignment:verticalAlignment,horizontalCompaction:horizontalCompaction,alignCoordinates:alignCoordinates,findSmallestWidthAlignment:findSmallestWidthAlignment,balance:balance};function findType1Conflicts(g,layering){var conflicts={};function visitLayer(prevLayer,layer){var k0=0,scanPos=0,prevLayerLength=prevLayer.length,lastNode=_.last(layer);_.each(layer,function(v,i){var w=findOtherInnerSegmentNode(g,v),k1=w?g.node(w).order:prevLayerLength;if(w||v===lastNode){_.each(layer.slice(scanPos,i+1),function(scanNode){_.each(g.predecessors(scanNode),function(u){var uLabel=g.node(u),uPos=uLabel.order;
-if((uPos<k0||k1<uPos)&&!(uLabel.dummy&&g.node(scanNode).dummy)){addConflict(conflicts,u,scanNode)}})});scanPos=i+1;k0=k1}});return layer}_.reduce(layering,visitLayer);return conflicts}function findType2Conflicts(g,layering){var conflicts={};function scan(south,southPos,southEnd,prevNorthBorder,nextNorthBorder){var v;_.each(_.range(southPos,southEnd),function(i){v=south[i];if(g.node(v).dummy){_.each(g.predecessors(v),function(u){var uNode=g.node(u);if(uNode.dummy&&(uNode.order<prevNorthBorder||uNode.order>nextNorthBorder)){addConflict(conflicts,u,v)}})}})}function visitLayer(north,south){var prevNorthPos=-1,nextNorthPos,southPos=0;_.each(south,function(v,southLookahead){if(g.node(v).dummy==="border"){var predecessors=g.predecessors(v);if(predecessors.length){nextNorthPos=g.node(predecessors[0]).order;scan(south,southPos,southLookahead,prevNorthPos,nextNorthPos);southPos=southLookahead;prevNorthPos=nextNorthPos}}scan(south,southPos,south.length,nextNorthPos,north.length)});return south}_.reduce(layering,visitLayer);return conflicts}function findOtherInnerSegmentNode(g,v){if(g.node(v).dummy){return _.find(g.predecessors(v),function(u){return g.node(u).dummy})}}function addConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}var conflictsV=conflicts[v];if(!conflictsV){conflicts[v]=conflictsV={}}conflictsV[w]=true}function hasConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}return _.has(conflicts[v],w)}function verticalAlignment(g,layering,conflicts,neighborFn){var root={},align={},pos={};_.each(layering,function(layer){_.each(layer,function(v,order){root[v]=v;align[v]=v;pos[v]=order})});_.each(layering,function(layer){var prevIdx=-1;_.each(layer,function(v){var ws=neighborFn(v);if(ws.length){ws=_.sortBy(ws,function(w){return pos[w]});var mp=(ws.length-1)/2;for(var i=Math.floor(mp),il=Math.ceil(mp);i<=il;++i){var w=ws[i];if(align[v]===v&&prevIdx<pos[w]&&!hasConflict(conflicts,v,w)){align[w]=v;align[v]=root[v]=root[w];prevIdx=pos[w]}}}})});return{root:root,align:align}}function horizontalCompaction(g,layering,root,align,reverseSep){var shift={},sink={},xs={},pred={},graphLabel=g.graph(),sepFn=sep(graphLabel.nodesep,graphLabel.edgesep,reverseSep);_.each(layering,function(layer){_.each(layer,function(v,order){sink[v]=v;shift[v]=Number.POSITIVE_INFINITY;pred[v]=layer[order-1]})});_.each(g.nodes(),function(v){if(root[v]===v){placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,v)}});_.each(layering,function(layer){_.each(layer,function(v){xs[v]=xs[root[v]];if(v===root[v]&&shift[sink[root[v]]]<Number.POSITIVE_INFINITY){xs[v]+=shift[sink[root[v]]]}})});return xs}function placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,v){if(_.has(xs,v))return;xs[v]=0;var w=v,u;do{if(pred[w]){u=root[pred[w]];placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,u);if(sink[v]===v){sink[v]=sink[u]}var delta=sepFn(g,w,pred[w]);if(sink[v]!==sink[u]){shift[sink[u]]=Math.min(shift[sink[u]],xs[v]-xs[u]-delta)}else{xs[v]=Math.max(xs[v],xs[u]+delta)}}w=align[w]}while(w!==v)}function findSmallestWidthAlignment(g,xss){return _.min(xss,function(xs){var min=_.min(xs,function(x,v){return x-width(g,v)/2}),max=_.max(xs,function(x,v){return x+width(g,v)/2});return max-min})}function alignCoordinates(xss,alignTo){var alignToMin=_.min(alignTo),alignToMax=_.max(alignTo);_.each(["u","d"],function(vert){_.each(["l","r"],function(horiz){var alignment=vert+horiz,xs=xss[alignment],delta;if(xs===alignTo)return;delta=horiz==="l"?alignToMin-_.min(xs):alignToMax-_.max(xs);if(delta){xss[alignment]=_.mapValues(xs,function(x){return x+delta})}})})}function balance(xss,align){return _.mapValues(xss.ul,function(ignore,v){if(align){return xss[align.toLowerCase()][v]}else{var xs=_.sortBy(_.pluck(xss,v));return(xs[1]+xs[2])/2}})}function positionX(g){var layering=util.buildLayerMatrix(g),conflicts=_.merge(findType1Conflicts(g,layering),findType2Conflicts(g,layering));var xss={},adjustedLayering;_.each(["u","d"],function(vert){adjustedLayering=vert==="u"?layering:_.values(layering).reverse();_.each(["l","r"],function(horiz){if(horiz==="r"){adjustedLayering=_.map(adjustedLayering,function(inner){return _.values(inner).reverse()})}var neighborFn=_.bind(vert==="u"?g.predecessors:g.successors,g);var align=verticalAlignment(g,adjustedLayering,conflicts,neighborFn);var xs=horizontalCompaction(g,adjustedLayering,align.root,align.align,horiz==="r");if(horiz==="r"){xs=_.mapValues(xs,function(x){return-x})}xss[vert+horiz]=xs})});var smallestWidth=findSmallestWidthAlignment(g,xss);alignCoordinates(xss,smallestWidth);return balance(xss,g.graph().align)}function sep(nodeSep,edgeSep,reverseSep){return function(g,v,w){var vLabel=g.node(v),wLabel=g.node(w),sum=0,delta;sum+=vLabel.width/2;if(_.has(vLabel,"labelpos")){switch(vLabel.labelpos.toLowerCase()){case"l":delta=-vLabel.width/2;break;case"r":delta=vLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;sum+=(vLabel.dummy?edgeSep:nodeSep)/2;sum+=(wLabel.dummy?edgeSep:nodeSep)/2;sum+=wLabel.width/2;if(_.has(wLabel,"labelpos")){switch(wLabel.labelpos.toLowerCase()){case"l":delta=wLabel.width/2;break;case"r":delta=-wLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;return sum}}function width(g,v){return g.node(v).width}},{"../lodash":10,"../util":29}],24:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util"),positionX=require("./bk").positionX;module.exports=position;function position(g){g=util.asNonCompoundGraph(g);positionY(g);_.each(positionX(g),function(x,v){g.node(v).x=x})}function positionY(g){var layering=util.buildLayerMatrix(g),rankSep=g.graph().ranksep,prevY=0;_.each(layering,function(layer){var maxHeight=_.max(_.map(layer,function(v){return g.node(v).height}));_.each(layer,function(v){g.node(v).y=prevY+maxHeight/2});prevY+=maxHeight+rankSep})}},{"../lodash":10,"../util":29,"./bk":23}],25:[function(require,module,exports){"use strict";var _=require("../lodash"),Graph=require("../graphlib").Graph,slack=require("./util").slack;module.exports=feasibleTree;function feasibleTree(g){var t=new Graph({directed:false});var start=g.nodes()[0],size=g.nodeCount();t.setNode(start,{});var edge,delta;while(tightTree(t,g)<size){edge=findMinSlackEdge(t,g);delta=t.hasNode(edge.v)?slack(g,edge):-slack(g,edge);shiftRanks(t,g,delta)}return t}function tightTree(t,g){function dfs(v){_.each(g.nodeEdges(v),function(e){var edgeV=e.v,w=v===edgeV?e.w:edgeV;if(!t.hasNode(w)&&!slack(g,e)){t.setNode(w,{});t.setEdge(v,w,{});dfs(w)}})}_.each(t.nodes(),dfs);return t.nodeCount()}function findMinSlackEdge(t,g){return _.min(g.edges(),function(e){if(t.hasNode(e.v)!==t.hasNode(e.w)){return slack(g,e)}})}function shiftRanks(t,g,delta){_.each(t.nodes(),function(v){g.node(v).rank+=delta})}},{"../graphlib":7,"../lodash":10,"./util":28}],26:[function(require,module,exports){"use strict";var rankUtil=require("./util"),longestPath=rankUtil.longestPath,feasibleTree=require("./feasible-tree"),networkSimplex=require("./network-simplex");module.exports=rank;function rank(g){switch(g.graph().ranker){case"network-simplex":networkSimplexRanker(g);break;case"tight-tree":tightTreeRanker(g);break;case"longest-path":longestPathRanker(g);break;default:networkSimplexRanker(g)}}var longestPathRanker=longestPath;function tightTreeRanker(g){longestPath(g);feasibleTree(g)}function networkSimplexRanker(g){networkSimplex(g)}},{"./feasible-tree":25,"./network-simplex":27,"./util":28}],27:[function(require,module,exports){"use strict";var _=require("../lodash"),feasibleTree=require("./feasible-tree"),slack=require("./util").slack,initRank=require("./util").longestPath,preorder=require("../graphlib").alg.preorder,postorder=require("../graphlib").alg.postorder,simplify=require("../util").simplify;module.exports=networkSimplex;networkSimplex.initLowLimValues=initLowLimValues;networkSimplex.initCutValues=initCutValues;networkSimplex.calcCutValue=calcCutValue;networkSimplex.leaveEdge=leaveEdge;networkSimplex.enterEdge=enterEdge;networkSimplex.exchangeEdges=exchangeEdges;function networkSimplex(g){g=simplify(g);initRank(g);var t=feasibleTree(g);initLowLimValues(t);initCutValues(t,g);var e,f;while(e=leaveEdge(t)){f=enterEdge(t,g,e);exchangeEdges(t,g,e,f)}}function initCutValues(t,g){var vs=postorder(t,t.nodes());vs=vs.slice(0,vs.length-1);_.each(vs,function(v){assignCutValue(t,g,v)})}function assignCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent;t.edge(child,parent).cutvalue=calcCutValue(t,g,child)}function calcCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent,childIsTail=true,graphEdge=g.edge(child,parent),cutValue=0;if(!graphEdge){childIsTail=false;graphEdge=g.edge(parent,child)}cutValue=graphEdge.weight;_.each(g.nodeEdges(child),function(e){var isOutEdge=e.v===child,other=isOutEdge?e.w:e.v;if(other!==parent){var pointsToHead=isOutEdge===childIsTail,otherWeight=g.edge(e).weight;cutValue+=pointsToHead?otherWeight:-otherWeight;if(isTreeEdge(t,child,other)){var otherCutValue=t.edge(child,other).cutvalue;cutValue+=pointsToHead?-otherCutValue:otherCutValue}}});return cutValue}function initLowLimValues(tree,root){if(arguments.length<2){root=tree.nodes()[0]}dfsAssignLowLim(tree,{},1,root)}function dfsAssignLowLim(tree,visited,nextLim,v,parent){var low=nextLim,label=tree.node(v);visited[v]=true;_.each(tree.neighbors(v),function(w){if(!_.has(visited,w)){nextLim=dfsAssignLowLim(tree,visited,nextLim,w,v)}});label.low=low;label.lim=nextLim++;if(parent){label.parent=parent}else{delete label.parent}return nextLim}function leaveEdge(tree){return _.find(tree.edges(),function(e){return tree.edge(e).cutvalue<0})}function enterEdge(t,g,edge){var v=edge.v,w=edge.w;if(!g.hasEdge(v,w)){v=edge.w;w=edge.v}var vLabel=t.node(v),wLabel=t.node(w),tailLabel=vLabel,flip=false;if(vLabel.lim>wLabel.lim){tailLabel=wLabel;flip=true}var candidates=_.filter(g.edges(),function(edge){return flip===isDescendant(t,t.node(edge.v),tailLabel)&&flip!==isDescendant(t,t.node(edge.w),tailLabel)});return _.min(candidates,function(edge){return slack(g,edge)})}function exchangeEdges(t,g,e,f){var v=e.v,w=e.w;t.removeEdge(v,w);t.setEdge(f.v,f.w,{});initLowLimValues(t);initCutValues(t,g);updateRanks(t,g)}function updateRanks(t,g){var root=_.find(t.nodes(),function(v){return!g.node(v).parent}),vs=preorder(t,root);vs=vs.slice(1);_.each(vs,function(v){var parent=t.node(v).parent,edge=g.edge(v,parent),flipped=false;if(!edge){edge=g.edge(parent,v);flipped=true}g.node(v).rank=g.node(parent).rank+(flipped?edge.minlen:-edge.minlen)})}function isTreeEdge(tree,u,v){return tree.hasEdge(u,v)}function isDescendant(tree,vLabel,rootLabel){return rootLabel.low<=vLabel.lim&&vLabel.lim<=rootLabel.lim}},{"../graphlib":7,"../lodash":10,"../util":29,"./feasible-tree":25,"./util":28}],28:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports={longestPath:longestPath,slack:slack};function longestPath(g){var visited={};function dfs(v){var label=g.node(v);if(_.has(visited,v)){return label.rank}visited[v]=true;var rank=_.min(_.map(g.outEdges(v),function(e){return dfs(e.w)-g.edge(e).minlen}));if(rank===Number.POSITIVE_INFINITY){rank=0}return label.rank=rank}_.each(g.sources(),dfs)}function slack(g,e){return g.node(e.w).rank-g.node(e.v).rank-g.edge(e).minlen}},{"../lodash":10}],29:[function(require,module,exports){"use strict";var _=require("./lodash"),Graph=require("./graphlib").Graph;module.exports={addDummyNode:addDummyNode,simplify:simplify,asNonCompoundGraph:asNonCompoundGraph,successorWeights:successorWeights,predecessorWeights:predecessorWeights,intersectRect:intersectRect,buildLayerMatrix:buildLayerMatrix,normalizeRanks:normalizeRanks,removeEmptyRanks:removeEmptyRanks,addBorderNode:addBorderNode,maxRank:maxRank,partition:partition,time:time,notime:notime};function addDummyNode(g,type,attrs,name){var v;do{v=_.uniqueId(name)}while(g.hasNode(v));attrs.dummy=type;g.setNode(v,attrs);return v}function simplify(g){var simplified=(new Graph).setGraph(g.graph());_.each(g.nodes(),function(v){simplified.setNode(v,g.node(v))});_.each(g.edges(),function(e){var simpleLabel=simplified.edge(e.v,e.w)||{weight:0,minlen:1},label=g.edge(e);simplified.setEdge(e.v,e.w,{weight:simpleLabel.weight+label.weight,minlen:Math.max(simpleLabel.minlen,label.minlen)})});return simplified}function asNonCompoundGraph(g){var simplified=new Graph({multigraph:g.isMultigraph()}).setGraph(g.graph());_.each(g.nodes(),function(v){if(!g.children(v).length){simplified.setNode(v,g.node(v))}});_.each(g.edges(),function(e){simplified.setEdge(e,g.edge(e))});return simplified}function successorWeights(g){var weightMap=_.map(g.nodes(),function(v){var sucs={};_.each(g.outEdges(v),function(e){sucs[e.w]=(sucs[e.w]||0)+g.edge(e).weight});return sucs});return _.zipObject(g.nodes(),weightMap)}function predecessorWeights(g){var weightMap=_.map(g.nodes(),function(v){var preds={};_.each(g.inEdges(v),function(e){preds[e.v]=(preds[e.v]||0)+g.edge(e).weight});return preds});return _.zipObject(g.nodes(),weightMap)}function intersectRect(rect,point){var x=rect.x;var y=rect.y;var dx=point.x-x;var dy=point.y-y;var w=rect.width/2;var h=rect.height/2;if(!dx&&!dy){throw new Error("Not possible to find intersection inside of the rectangle")}var sx,sy;if(Math.abs(dy)*w>Math.abs(dx)*h){if(dy<0){h=-h}sx=h*dx/dy;sy=h}else{if(dx<0){w=-w}sx=w;sy=w*dy/dx}return{x:x+sx,y:y+sy}}function buildLayerMatrix(g){var layering=_.map(_.range(maxRank(g)+1),function(){return[]});_.each(g.nodes(),function(v){var node=g.node(v),rank=node.rank;if(!_.isUndefined(rank)){layering[rank][node.order]=v}});return layering}function normalizeRanks(g){var min=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));_.each(g.nodes(),function(v){var node=g.node(v);if(_.has(node,"rank")){node.rank-=min}})}function removeEmptyRanks(g){var offset=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));var layers=[];_.each(g.nodes(),function(v){var rank=g.node(v).rank-offset;if(!_.has(layers,rank)){layers[rank]=[]}layers[rank].push(v)});var delta=0,nodeRankFactor=g.graph().nodeRankFactor;_.each(layers,function(vs,i){if(_.isUndefined(vs)&&i%nodeRankFactor!==0){--delta}else if(delta){_.each(vs,function(v){g.node(v).rank+=delta})}})}function addBorderNode(g,prefix,rank,order){var node={width:0,height:0};if(arguments.length>=4){node.rank=rank;node.order=order}return addDummyNode(g,"border",node,prefix)}function maxRank(g){return _.max(_.map(g.nodes(),function(v){var rank=g.node(v).rank;if(!_.isUndefined(rank)){return rank}}))}function partition(collection,fn){var result={lhs:[],rhs:[]};_.each(collection,function(value){if(fn(value)){result.lhs.push(value)}else{result.rhs.push(value)}});return result}function time(name,fn){var start=_.now();try{return fn()}finally{console.log(name+" time: "+(_.now()-start)+"ms")}}function notime(name,fn){return fn()}},{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){module.exports="0.6.3"},{}]},{},[1])(1)});
\ No newline at end of file
+if((uPos<k0||k1<uPos)&&!(uLabel.dummy&&g.node(scanNode).dummy)){addConflict(conflicts,u,scanNode)}})});scanPos=i+1;k0=k1}});return layer}_.reduce(layering,visitLayer);return conflicts}function findType2Conflicts(g,layering){var conflicts={};function scan(south,southPos,southEnd,prevNorthBorder,nextNorthBorder){var v;_.each(_.range(southPos,southEnd),function(i){v=south[i];if(g.node(v).dummy){_.each(g.predecessors(v),function(u){var uNode=g.node(u);if(uNode.dummy&&(uNode.order<prevNorthBorder||uNode.order>nextNorthBorder)){addConflict(conflicts,u,v)}})}})}function visitLayer(north,south){var prevNorthPos=-1,nextNorthPos,southPos=0;_.each(south,function(v,southLookahead){if(g.node(v).dummy==="border"){var predecessors=g.predecessors(v);if(predecessors.length){nextNorthPos=g.node(predecessors[0]).order;scan(south,southPos,southLookahead,prevNorthPos,nextNorthPos);southPos=southLookahead;prevNorthPos=nextNorthPos}}scan(south,southPos,south.length,nextNorthPos,north.length)});return south}_.reduce(layering,visitLayer);return conflicts}function findOtherInnerSegmentNode(g,v){if(g.node(v).dummy){return _.find(g.predecessors(v),function(u){return g.node(u).dummy})}}function addConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}var conflictsV=conflicts[v];if(!conflictsV){conflicts[v]=conflictsV={}}conflictsV[w]=true}function hasConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}return _.has(conflicts[v],w)}function verticalAlignment(g,layering,conflicts,neighborFn){var root={},align={},pos={};_.each(layering,function(layer){_.each(layer,function(v,order){root[v]=v;align[v]=v;pos[v]=order})});_.each(layering,function(layer){var prevIdx=-1;_.each(layer,function(v){var ws=neighborFn(v);if(ws.length){ws=_.sortBy(ws,function(w){return pos[w]});var mp=(ws.length-1)/2;for(var i=Math.floor(mp),il=Math.ceil(mp);i<=il;++i){var w=ws[i];if(align[v]===v&&prevIdx<pos[w]&&!hasConflict(conflicts,v,w)){align[w]=v;align[v]=root[v]=root[w];prevIdx=pos[w]}}}})});return{root:root,align:align}}function horizontalCompaction(g,layering,root,align,reverseSep){var shift={},shiftNeighbor={},sink={},xs={},pred={},graphLabel=g.graph(),sepFn=sep(graphLabel.nodesep,graphLabel.edgesep,reverseSep);_.each(layering,function(layer){_.each(layer,function(v,order){sink[v]=v;shift[v]=Number.POSITIVE_INFINITY;pred[v]=layer[order-1]})});_.each(g.nodes(),function(v){if(root[v]===v){placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,v)}});_.each(layering,function(layer){_.each(layer,function(v){xs[v]=xs[root[v]];if(v===root[v]&&shift[sink[root[v]]]<Number.POSITIVE_INFINITY){xs[v]+=shift[sink[root[v]]];var w=shiftNeighbor[sink[root[v]]];if(w&&shift[w]!==Number.POSITIVE_INFINITY){xs[v]+=shift[w]}}})});return xs}function placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,v){if(_.has(xs,v))return;xs[v]=0;var w=v,u;do{if(pred[w]){u=root[pred[w]];placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,u);if(sink[v]===v){sink[v]=sink[u]}var delta=sepFn(g,w,pred[w]);if(sink[v]!==sink[u]){shift[sink[u]]=Math.min(shift[sink[u]],xs[v]-xs[u]-delta);shiftNeighbor[sink[u]]=sink[v]}else{xs[v]=Math.max(xs[v],xs[u]+delta)}}w=align[w]}while(w!==v)}function findSmallestWidthAlignment(g,xss){return _.min(xss,function(xs){var min=_.min(xs,function(x,v){return x-width(g,v)/2}),max=_.max(xs,function(x,v){return x+width(g,v)/2});return max-min})}function alignCoordinates(xss,alignTo){var alignToMin=_.min(alignTo),alignToMax=_.max(alignTo);_.each(["u","d"],function(vert){_.each(["l","r"],function(horiz){var alignment=vert+horiz,xs=xss[alignment],delta;if(xs===alignTo)return;delta=horiz==="l"?alignToMin-_.min(xs):alignToMax-_.max(xs);if(delta){xss[alignment]=_.mapValues(xs,function(x){return x+delta})}})})}function balance(xss,align){return _.mapValues(xss.ul,function(ignore,v){if(align){return xss[align.toLowerCase()][v]}else{var xs=_.sortBy(_.pluck(xss,v));return(xs[1]+xs[2])/2}})}function positionX(g){var layering=util.buildLayerMatrix(g),conflicts=_.merge(findType1Conflicts(g,layering),findType2Conflicts(g,layering));var xss={},adjustedLayering;_.each(["u","d"],function(vert){adjustedLayering=vert==="u"?layering:_.values(layering).reverse();_.each(["l","r"],function(horiz){if(horiz==="r"){adjustedLayering=_.map(adjustedLayering,function(inner){return _.values(inner).reverse()})}var neighborFn=_.bind(vert==="u"?g.predecessors:g.successors,g);var align=verticalAlignment(g,adjustedLayering,conflicts,neighborFn);var xs=horizontalCompaction(g,adjustedLayering,align.root,align.align,horiz==="r");if(horiz==="r"){xs=_.mapValues(xs,function(x){return-x})}xss[vert+horiz]=xs})});var smallestWidth=findSmallestWidthAlignment(g,xss);alignCoordinates(xss,smallestWidth);return balance(xss,g.graph().align)}function sep(nodeSep,edgeSep,reverseSep){return function(g,v,w){var vLabel=g.node(v),wLabel=g.node(w),sum=0,delta;sum+=vLabel.width/2;if(_.has(vLabel,"labelpos")){switch(vLabel.labelpos.toLowerCase()){case"l":delta=-vLabel.width/2;break;case"r":delta=vLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;sum+=(vLabel.dummy?edgeSep:nodeSep)/2;sum+=(wLabel.dummy?edgeSep:nodeSep)/2;sum+=wLabel.width/2;if(_.has(wLabel,"labelpos")){switch(wLabel.labelpos.toLowerCase()){case"l":delta=wLabel.width/2;break;case"r":delta=-wLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;return sum}}function width(g,v){return g.node(v).width}},{"../lodash":10,"../util":29}],24:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util"),positionX=require("./bk").positionX;module.exports=position;function position(g){g=util.asNonCompoundGraph(g);positionY(g);_.each(positionX(g),function(x,v){g.node(v).x=x})}function positionY(g){var layering=util.buildLayerMatrix(g),rankSep=g.graph().ranksep,prevY=0;_.each(layering,function(layer){var maxHeight=_.max(_.map(layer,function(v){return g.node(v).height}));_.each(layer,function(v){g.node(v).y=prevY+maxHeight/2});prevY+=maxHeight+rankSep})}},{"../lodash":10,"../util":29,"./bk":23}],25:[function(require,module,exports){"use strict";var _=require("../lodash"),Graph=require("../graphlib").Graph,slack=require("./util").slack;module.exports=feasibleTree;function feasibleTree(g){var t=new Graph({directed:false});var start=g.nodes()[0],size=g.nodeCount();t.setNode(start,{});var edge,delta;while(tightTree(t,g)<size){edge=findMinSlackEdge(t,g);delta=t.hasNode(edge.v)?slack(g,edge):-slack(g,edge);shiftRanks(t,g,delta)}return t}function tightTree(t,g){function dfs(v){_.each(g.nodeEdges(v),function(e){var edgeV=e.v,w=v===edgeV?e.w:edgeV;if(!t.hasNode(w)&&!slack(g,e)){t.setNode(w,{});t.setEdge(v,w,{});dfs(w)}})}_.each(t.nodes(),dfs);return t.nodeCount()}function findMinSlackEdge(t,g){return _.min(g.edges(),function(e){if(t.hasNode(e.v)!==t.hasNode(e.w)){return slack(g,e)}})}function shiftRanks(t,g,delta){_.each(t.nodes(),function(v){g.node(v).rank+=delta})}},{"../graphlib":7,"../lodash":10,"./util":28}],26:[function(require,module,exports){"use strict";var rankUtil=require("./util"),longestPath=rankUtil.longestPath,feasibleTree=require("./feasible-tree"),networkSimplex=require("./network-simplex");module.exports=rank;function rank(g){switch(g.graph().ranker){case"network-simplex":networkSimplexRanker(g);break;case"tight-tree":tightTreeRanker(g);break;case"longest-path":longestPathRanker(g);break;default:networkSimplexRanker(g)}}var longestPathRanker=longestPath;function tightTreeRanker(g){longestPath(g);feasibleTree(g)}function networkSimplexRanker(g){networkSimplex(g)}},{"./feasible-tree":25,"./network-simplex":27,"./util":28}],27:[function(require,module,exports){"use strict";var _=require("../lodash"),feasibleTree=require("./feasible-tree"),slack=require("./util").slack,initRank=require("./util").longestPath,preorder=require("../graphlib").alg.preorder,postorder=require("../graphlib").alg.postorder,simplify=require("../util").simplify;module.exports=networkSimplex;networkSimplex.initLowLimValues=initLowLimValues;networkSimplex.initCutValues=initCutValues;networkSimplex.calcCutValue=calcCutValue;networkSimplex.leaveEdge=leaveEdge;networkSimplex.enterEdge=enterEdge;networkSimplex.exchangeEdges=exchangeEdges;function networkSimplex(g){g=simplify(g);initRank(g);var t=feasibleTree(g);initLowLimValues(t);initCutValues(t,g);var e,f;while(e=leaveEdge(t)){f=enterEdge(t,g,e);exchangeEdges(t,g,e,f)}}function initCutValues(t,g){var vs=postorder(t,t.nodes());vs=vs.slice(0,vs.length-1);_.each(vs,function(v){assignCutValue(t,g,v)})}function assignCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent;t.edge(child,parent).cutvalue=calcCutValue(t,g,child)}function calcCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent,childIsTail=true,graphEdge=g.edge(child,parent),cutValue=0;if(!graphEdge){childIsTail=false;graphEdge=g.edge(parent,child)}cutValue=graphEdge.weight;_.each(g.nodeEdges(child),function(e){var isOutEdge=e.v===child,other=isOutEdge?e.w:e.v;if(other!==parent){var pointsToHead=isOutEdge===childIsTail,otherWeight=g.edge(e).weight;cutValue+=pointsToHead?otherWeight:-otherWeight;if(isTreeEdge(t,child,other)){var otherCutValue=t.edge(child,other).cutvalue;cutValue+=pointsToHead?-otherCutValue:otherCutValue}}});return cutValue}function initLowLimValues(tree,root){if(arguments.length<2){root=tree.nodes()[0]}dfsAssignLowLim(tree,{},1,root)}function dfsAssignLowLim(tree,visited,nextLim,v,parent){var low=nextLim,label=tree.node(v);visited[v]=true;_.each(tree.neighbors(v),function(w){if(!_.has(visited,w)){nextLim=dfsAssignLowLim(tree,visited,nextLim,w,v)}});label.low=low;label.lim=nextLim++;if(parent){label.parent=parent}else{delete label.parent}return nextLim}function leaveEdge(tree){return _.find(tree.edges(),function(e){return tree.edge(e).cutvalue<0})}function enterEdge(t,g,edge){var v=edge.v,w=edge.w;if(!g.hasEdge(v,w)){v=edge.w;w=edge.v}var vLabel=t.node(v),wLabel=t.node(w),tailLabel=vLabel,flip=false;if(vLabel.lim>wLabel.lim){tailLabel=wLabel;flip=true}var candidates=_.filter(g.edges(),function(edge){return flip===isDescendant(t,t.node(edge.v),tailLabel)&&flip!==isDescendant(t,t.node(edge.w),tailLabel)});return _.min(candidates,function(edge){return slack(g,edge)})}function exchangeEdges(t,g,e,f){var v=e.v,w=e.w;t.removeEdge(v,w);t.setEdge(f.v,f.w,{});initLowLimValues(t);initCutValues(t,g);updateRanks(t,g)}function updateRanks(t,g){var root=_.find(t.nodes(),function(v){return!g.node(v).parent}),vs=preorder(t,root);vs=vs.slice(1);_.each(vs,function(v){var parent=t.node(v).parent,edge=g.edge(v,parent),flipped=false;if(!edge){edge=g.edge(parent,v);flipped=true}g.node(v).rank=g.node(parent).rank+(flipped?edge.minlen:-edge.minlen)})}function isTreeEdge(tree,u,v){return tree.hasEdge(u,v)}function isDescendant(tree,vLabel,rootLabel){return rootLabel.low<=vLabel.lim&&vLabel.lim<=rootLabel.lim}},{"../graphlib":7,"../lodash":10,"../util":29,"./feasible-tree":25,"./util":28}],28:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports={longestPath:longestPath,slack:slack};function longestPath(g){var visited={};function dfs(v){var label=g.node(v);if(_.has(visited,v)){return label.rank}visited[v]=true;var rank=_.min(_.map(g.outEdges(v),function(e){return dfs(e.w)-g.edge(e).minlen}));if(rank===Number.POSITIVE_INFINITY){rank=0}return label.rank=rank}_.each(g.sources(),dfs)}function slack(g,e){return g.node(e.w).rank-g.node(e.v).rank-g.edge(e).minlen}},{"../lodash":10}],29:[function(require,module,exports){"use strict";var _=require("./lodash"),Graph=require("./graphlib").Graph;module.exports={addDummyNode:addDummyNode,simplify:simplify,asNonCompoundGraph:asNonCompoundGraph,successorWeights:successorWeights,predecessorWeights:predecessorWeights,intersectRect:intersectRect,buildLayerMatrix:buildLayerMatrix,normalizeRanks:normalizeRanks,removeEmptyRanks:removeEmptyRanks,addBorderNode:addBorderNode,maxRank:maxRank,partition:partition,time:time,notime:notime};function addDummyNode(g,type,attrs,name){var v;do{v=_.uniqueId(name)}while(g.hasNode(v));attrs.dummy=type;g.setNode(v,attrs);return v}function simplify(g){var simplified=(new Graph).setGraph(g.graph());_.each(g.nodes(),function(v){simplified.setNode(v,g.node(v))});_.each(g.edges(),function(e){var simpleLabel=simplified.edge(e.v,e.w)||{weight:0,minlen:1},label=g.edge(e);simplified.setEdge(e.v,e.w,{weight:simpleLabel.weight+label.weight,minlen:Math.max(simpleLabel.minlen,label.minlen)})});return simplified}function asNonCompoundGraph(g){var simplified=new Graph({multigraph:g.isMultigraph()}).setGraph(g.graph());_.each(g.nodes(),function(v){if(!g.children(v).length){simplified.setNode(v,g.node(v))}});_.each(g.edges(),function(e){simplified.setEdge(e,g.edge(e))});return simplified}function successorWeights(g){var weightMap=_.map(g.nodes(),function(v){var sucs={};_.each(g.outEdges(v),function(e){sucs[e.w]=(sucs[e.w]||0)+g.edge(e).weight});return sucs});return _.zipObject(g.nodes(),weightMap)}function predecessorWeights(g){var weightMap=_.map(g.nodes(),function(v){var preds={};_.each(g.inEdges(v),function(e){preds[e.v]=(preds[e.v]||0)+g.edge(e).weight});return preds});return _.zipObject(g.nodes(),weightMap)}function intersectRect(rect,point){var x=rect.x;var y=rect.y;var dx=point.x-x;var dy=point.y-y;var w=rect.width/2;var h=rect.height/2;if(!dx&&!dy){throw new Error("Not possible to find intersection inside of the rectangle")}var sx,sy;if(Math.abs(dy)*w>Math.abs(dx)*h){if(dy<0){h=-h}sx=h*dx/dy;sy=h}else{if(dx<0){w=-w}sx=w;sy=w*dy/dx}return{x:x+sx,y:y+sy}}function buildLayerMatrix(g){var layering=_.map(_.range(maxRank(g)+1),function(){return[]});_.each(g.nodes(),function(v){var node=g.node(v),rank=node.rank;if(!_.isUndefined(rank)){layering[rank][node.order]=v}});return layering}function normalizeRanks(g){var min=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));_.each(g.nodes(),function(v){var node=g.node(v);if(_.has(node,"rank")){node.rank-=min}})}function removeEmptyRanks(g){var offset=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));var layers=[];_.each(g.nodes(),function(v){var rank=g.node(v).rank-offset;if(!_.has(layers,rank)){layers[rank]=[]}layers[rank].push(v)});var delta=0,nodeRankFactor=g.graph().nodeRankFactor;_.each(layers,function(vs,i){if(_.isUndefined(vs)&&i%nodeRankFactor!==0){--delta}else if(delta){_.each(vs,function(v){g.node(v).rank+=delta})}})}function addBorderNode(g,prefix,rank,order){var node={width:0,height:0};if(arguments.length>=4){node.rank=rank;node.order=order}return addDummyNode(g,"border",node,prefix)}function maxRank(g){return _.max(_.map(g.nodes(),function(v){var rank=g.node(v).rank;if(!_.isUndefined(rank)){return rank}}))}function partition(collection,fn){var result={lhs:[],rhs:[]};_.each(collection,function(value){if(fn(value)){result.lhs.push(value)}else{result.rhs.push(value)}});return result}function time(name,fn){var start=_.now();try{return fn()}finally{console.log(name+" time: "+(_.now()-start)+"ms")}}function notime(name,fn){return fn()}},{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){module.exports="0.6.4"},{}]},{},[1])(1)});
\ No newline at end of file
diff --git a/dist/dagre.js b/dist/dagre.js
index a38105d2..cf3e8957 100644
--- a/dist/dagre.js
+++ b/dist/dagre.js
@@ -1997,6 +1997,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
   // We use local variables for these parameters instead of manipulating the
   // graph because it becomes more verbose to access them in a chained manner.
   var shift = {},
+      shiftNeighbor = {},
       sink = {},
       xs = {},
       pred = {},
@@ -2013,7 +2014,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
 
   _.each(g.nodes(), function(v) {
     if (root[v] === v) {
-      placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v);
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v);
     }
   });
 
@@ -2024,6 +2025,12 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
       // http://www.inf.uni-konstanz.de/~brandes/publications/ for details.
       if (v === root[v] && shift[sink[root[v]]] < Number.POSITIVE_INFINITY) {
         xs[v] += shift[sink[root[v]]];
+
+        // Cascade shifts as necessary
+        var w = shiftNeighbor[sink[root[v]]];
+        if (w && shift[w] !== Number.POSITIVE_INFINITY) {
+          xs[v] += shift[w];
+        }
       }
     });
   });
@@ -2031,7 +2038,7 @@ function horizontalCompaction(g, layering, root, align, reverseSep) {
   return xs;
 }
 
-function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
+function placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v) {
   if (_.has(xs, v)) return;
   xs[v] = 0;
 
@@ -2040,7 +2047,7 @@ function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
   do {
     if (pred[w]) {
       u = root[pred[w]];
-      placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, u);
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, u);
       if (sink[v] === v) {
         sink[v] = sink[u];
       }
@@ -2048,6 +2055,7 @@ function placeBlock(g, layering, sepFn, root, align, shift, sink, pred, xs, v) {
       var delta = sepFn(g, w, pred[w]);
       if (sink[v] !== sink[u]) {
         shift[sink[u]] = Math.min(shift[sink[u]], xs[v] - xs[u] - delta);
+        shiftNeighbor[sink[u]] = sink[v];
       } else {
         xs[v] = Math.max(xs[v], xs[u] + delta);
       }
@@ -2891,7 +2899,7 @@ function notime(name, fn) {
 }
 
 },{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){
-module.exports = "0.6.3";
+module.exports = "0.6.4";
 
 },{}],31:[function(require,module,exports){
 /**
diff --git a/dist/dagre.min.js b/dist/dagre.min.js
index 54391970..62530ec2 100644
--- a/dist/dagre.min.js
+++ b/dist/dagre.min.js
@@ -1,4 +1,4 @@
 !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.dagre=e()}}(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){module.exports={graphlib:require("./lib/graphlib"),layout:require("./lib/layout"),debug:require("./lib/debug"),util:{time:require("./lib/util").time,notime:require("./lib/util").notime},version:require("./lib/version")}},{"./lib/debug":6,"./lib/graphlib":7,"./lib/layout":9,"./lib/util":29,"./lib/version":30}],2:[function(require,module,exports){"use strict";var _=require("./lodash"),greedyFAS=require("./greedy-fas");module.exports={run:run,undo:undo};function run(g){var fas=g.graph().acyclicer==="greedy"?greedyFAS(g,weightFn(g)):dfsFAS(g);_.each(fas,function(e){var label=g.edge(e);g.removeEdge(e);label.forwardName=e.name;label.reversed=true;g.setEdge(e.w,e.v,label,_.uniqueId("rev"))});function weightFn(g){return function(e){return g.edge(e).weight}}}function dfsFAS(g){var fas=[],stack={},visited={};function dfs(v){if(_.has(visited,v)){return}visited[v]=true;stack[v]=true;_.each(g.outEdges(v),function(e){if(_.has(stack,e.w)){fas.push(e)}else{dfs(e.w)}});delete stack[v]}_.each(g.nodes(),dfs);return fas}function undo(g){_.each(g.edges(),function(e){var label=g.edge(e);if(label.reversed){g.removeEdge(e);var forwardName=label.forwardName;delete label.reversed;delete label.forwardName;g.setEdge(e.w,e.v,label,forwardName)}})}},{"./greedy-fas":8,"./lodash":10}],3:[function(require,module,exports){var _=require("./lodash"),util=require("./util");module.exports=addBorderSegments;function addBorderSegments(g){function dfs(v){var children=g.children(v),node=g.node(v);if(children.length){_.each(children,dfs)}if(_.has(node,"minRank")){node.borderLeft=[];node.borderRight=[];for(var rank=node.minRank,maxRank=node.maxRank+1;rank<maxRank;++rank){addBorderNode(g,"borderLeft","_bl",v,node,rank);addBorderNode(g,"borderRight","_br",v,node,rank)}}}_.each(g.children(),dfs)}function addBorderNode(g,prop,prefix,sg,sgNode,rank){var label={width:0,height:0,rank:rank},prev=sgNode[prop][rank-1],curr=util.addDummyNode(g,"border",label,prefix);sgNode[prop][rank]=curr;g.setParent(curr,sg);if(prev){g.setEdge(prev,curr,{weight:1})}}},{"./lodash":10,"./util":29}],4:[function(require,module,exports){"use strict";var _=require("./lodash");module.exports={adjust:adjust,undo:undo};function adjust(g){var rankDir=g.graph().rankdir.toLowerCase();if(rankDir==="lr"||rankDir==="rl"){swapWidthHeight(g)}}function undo(g){var rankDir=g.graph().rankdir.toLowerCase();if(rankDir==="bt"||rankDir==="rl"){reverseY(g)}if(rankDir==="lr"||rankDir==="rl"){swapXY(g);swapWidthHeight(g)}}function swapWidthHeight(g){_.each(g.nodes(),function(v){swapWidthHeightOne(g.node(v))});_.each(g.edges(),function(e){swapWidthHeightOne(g.edge(e))})}function swapWidthHeightOne(attrs){var w=attrs.width;attrs.width=attrs.height;attrs.height=w}function reverseY(g){_.each(g.nodes(),function(v){reverseYOne(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,reverseYOne);if(_.has(edge,"y")){reverseYOne(edge)}})}function reverseYOne(attrs){attrs.y=-attrs.y}function swapXY(g){_.each(g.nodes(),function(v){swapXYOne(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,swapXYOne);if(_.has(edge,"x")){swapXYOne(edge)}})}function swapXYOne(attrs){var x=attrs.x;attrs.x=attrs.y;attrs.y=x}},{"./lodash":10}],5:[function(require,module,exports){module.exports=List;function List(){var sentinel={};sentinel._next=sentinel._prev=sentinel;this._sentinel=sentinel}List.prototype.dequeue=function(){var sentinel=this._sentinel,entry=sentinel._prev;if(entry!==sentinel){unlink(entry);return entry}};List.prototype.enqueue=function(entry){var sentinel=this._sentinel;if(entry._prev&&entry._next){unlink(entry)}entry._next=sentinel._next;sentinel._next._prev=entry;sentinel._next=entry;entry._prev=sentinel};List.prototype.toString=function(){var strs=[],sentinel=this._sentinel,curr=sentinel._prev;while(curr!==sentinel){strs.push(JSON.stringify(curr,filterOutLinks));curr=curr._prev}return"["+strs.join(", ")+"]"};function unlink(entry){entry._prev._next=entry._next;entry._next._prev=entry._prev;delete entry._next;delete entry._prev}function filterOutLinks(k,v){if(k!=="_next"&&k!=="_prev"){return v}}},{}],6:[function(require,module,exports){var _=require("./lodash"),util=require("./util"),Graph=require("./graphlib").Graph;module.exports={debugOrdering:debugOrdering};function debugOrdering(g){var layerMatrix=util.buildLayerMatrix(g);var h=new Graph({compound:true,multigraph:true}).setGraph({});_.each(g.nodes(),function(v){h.setNode(v,{label:v});h.setParent(v,"layer"+g.node(v).rank)});_.each(g.edges(),function(e){h.setEdge(e.v,e.w,{},e.name)});_.each(layerMatrix,function(layer,i){var layerV="layer"+i;h.setNode(layerV,{rank:"same"});_.reduce(layer,function(u,v){h.setEdge(u,v,{style:"invis"});return v})});return h}},{"./graphlib":7,"./lodash":10,"./util":29}],7:[function(require,module,exports){var graphlib;if(require){try{graphlib=require("graphlib")}catch(e){}}if(!graphlib){graphlib=window.graphlib}module.exports=graphlib},{graphlib:31}],8:[function(require,module,exports){var _=require("./lodash"),Graph=require("./graphlib").Graph,List=require("./data/list");module.exports=greedyFAS;var DEFAULT_WEIGHT_FN=_.constant(1);function greedyFAS(g,weightFn){if(g.nodeCount()<=1){return[]}var state=buildState(g,weightFn||DEFAULT_WEIGHT_FN);var results=doGreedyFAS(state.graph,state.buckets,state.zeroIdx);return _.flatten(_.map(results,function(e){return g.outEdges(e.v,e.w)}),true)}function doGreedyFAS(g,buckets,zeroIdx){var results=[],sources=buckets[buckets.length-1],sinks=buckets[0];var entry;while(g.nodeCount()){while(entry=sinks.dequeue()){removeNode(g,buckets,zeroIdx,entry)}while(entry=sources.dequeue()){removeNode(g,buckets,zeroIdx,entry)}if(g.nodeCount()){for(var i=buckets.length-2;i>0;--i){entry=buckets[i].dequeue();if(entry){results=results.concat(removeNode(g,buckets,zeroIdx,entry,true));break}}}}return results}function removeNode(g,buckets,zeroIdx,entry,collectPredecessors){var results=collectPredecessors?[]:undefined;_.each(g.inEdges(entry.v),function(edge){var weight=g.edge(edge),uEntry=g.node(edge.v);if(collectPredecessors){results.push({v:edge.v,w:edge.w})}uEntry.out-=weight;assignBucket(buckets,zeroIdx,uEntry)});_.each(g.outEdges(entry.v),function(edge){var weight=g.edge(edge),w=edge.w,wEntry=g.node(w);wEntry.in-=weight;assignBucket(buckets,zeroIdx,wEntry)});g.removeNode(entry.v);return results}function buildState(g,weightFn){var fasGraph=new Graph,maxIn=0,maxOut=0;_.each(g.nodes(),function(v){fasGraph.setNode(v,{v:v,"in":0,out:0})});_.each(g.edges(),function(e){var prevWeight=fasGraph.edge(e.v,e.w)||0,weight=weightFn(e),edgeWeight=prevWeight+weight;fasGraph.setEdge(e.v,e.w,edgeWeight);maxOut=Math.max(maxOut,fasGraph.node(e.v).out+=weight);maxIn=Math.max(maxIn,fasGraph.node(e.w).in+=weight)});var buckets=_.range(maxOut+maxIn+3).map(function(){return new List});var zeroIdx=maxIn+1;_.each(fasGraph.nodes(),function(v){assignBucket(buckets,zeroIdx,fasGraph.node(v))});return{graph:fasGraph,buckets:buckets,zeroIdx:zeroIdx}}function assignBucket(buckets,zeroIdx,entry){if(!entry.out){buckets[0].enqueue(entry)}else if(!entry.in){buckets[buckets.length-1].enqueue(entry)}else{buckets[entry.out-entry.in+zeroIdx].enqueue(entry)}}},{"./data/list":5,"./graphlib":7,"./lodash":10}],9:[function(require,module,exports){"use strict";var _=require("./lodash"),acyclic=require("./acyclic"),normalize=require("./normalize"),rank=require("./rank"),normalizeRanks=require("./util").normalizeRanks,parentDummyChains=require("./parent-dummy-chains"),removeEmptyRanks=require("./util").removeEmptyRanks,nestingGraph=require("./nesting-graph"),addBorderSegments=require("./add-border-segments"),coordinateSystem=require("./coordinate-system"),order=require("./order"),position=require("./position"),util=require("./util"),Graph=require("./graphlib").Graph;module.exports=layout;function layout(g,opts){var time=opts&&opts.debugTiming?util.time:util.notime;time("layout",function(){var layoutGraph=time("  buildLayoutGraph",function(){return buildLayoutGraph(g)});time("  runLayout",function(){runLayout(layoutGraph,time)});time("  updateInputGraph",function(){updateInputGraph(g,layoutGraph)})})}function runLayout(g,time){time("    makeSpaceForEdgeLabels",function(){makeSpaceForEdgeLabels(g)});time("    removeSelfEdges",function(){removeSelfEdges(g)});time("    acyclic",function(){acyclic.run(g)});time("    nestingGraph.run",function(){nestingGraph.run(g)});time("    rank",function(){rank(util.asNonCompoundGraph(g))});time("    injectEdgeLabelProxies",function(){injectEdgeLabelProxies(g)});time("    removeEmptyRanks",function(){removeEmptyRanks(g)});time("    nestingGraph.cleanup",function(){nestingGraph.cleanup(g)});time("    normalizeRanks",function(){normalizeRanks(g)});time("    assignRankMinMax",function(){assignRankMinMax(g)});time("    removeEdgeLabelProxies",function(){removeEdgeLabelProxies(g)});time("    normalize.run",function(){normalize.run(g)});time("    parentDummyChains",function(){parentDummyChains(g)});time("    addBorderSegments",function(){addBorderSegments(g)});time("    order",function(){order(g)});time("    insertSelfEdges",function(){insertSelfEdges(g)});time("    adjustCoordinateSystem",function(){coordinateSystem.adjust(g)});time("    position",function(){position(g)});time("    positionSelfEdges",function(){positionSelfEdges(g)});time("    removeBorderNodes",function(){removeBorderNodes(g)});time("    normalize.undo",function(){normalize.undo(g)});time("    fixupEdgeLabelCoords",function(){fixupEdgeLabelCoords(g)});time("    undoCoordinateSystem",function(){coordinateSystem.undo(g)});time("    translateGraph",function(){translateGraph(g)});time("    assignNodeIntersects",function(){assignNodeIntersects(g)});time("    reversePoints",function(){reversePointsForReversedEdges(g)});time("    acyclic.undo",function(){acyclic.undo(g)})}function updateInputGraph(inputGraph,layoutGraph){_.each(inputGraph.nodes(),function(v){var inputLabel=inputGraph.node(v),layoutLabel=layoutGraph.node(v);if(inputLabel){inputLabel.x=layoutLabel.x;inputLabel.y=layoutLabel.y;if(layoutGraph.children(v).length){inputLabel.width=layoutLabel.width;inputLabel.height=layoutLabel.height}}});_.each(inputGraph.edges(),function(e){var inputLabel=inputGraph.edge(e),layoutLabel=layoutGraph.edge(e);inputLabel.points=layoutLabel.points;if(_.has(layoutLabel,"x")){inputLabel.x=layoutLabel.x;inputLabel.y=layoutLabel.y}});inputGraph.graph().width=layoutGraph.graph().width;inputGraph.graph().height=layoutGraph.graph().height}var graphNumAttrs=["nodesep","edgesep","ranksep","marginx","marginy"],graphDefaults={ranksep:50,edgesep:20,nodesep:50,rankdir:"tb"},graphAttrs=["acyclicer","ranker","rankdir","align"],nodeNumAttrs=["width","height"],nodeDefaults={width:0,height:0},edgeNumAttrs=["minlen","weight","width","height","labeloffset"],edgeDefaults={minlen:1,weight:1,width:0,height:0,labeloffset:10,labelpos:"r"},edgeAttrs=["labelpos"];function buildLayoutGraph(inputGraph){var g=new Graph({multigraph:true,compound:true}),graph=canonicalize(inputGraph.graph());g.setGraph(_.merge({},graphDefaults,selectNumberAttrs(graph,graphNumAttrs),_.pick(graph,graphAttrs)));_.each(inputGraph.nodes(),function(v){var node=canonicalize(inputGraph.node(v));g.setNode(v,_.defaults(selectNumberAttrs(node,nodeNumAttrs),nodeDefaults));g.setParent(v,inputGraph.parent(v))});_.each(inputGraph.edges(),function(e){var edge=canonicalize(inputGraph.edge(e));g.setEdge(e,_.merge({},edgeDefaults,selectNumberAttrs(edge,edgeNumAttrs),_.pick(edge,edgeAttrs)))});return g}function makeSpaceForEdgeLabels(g){var graph=g.graph();graph.ranksep/=2;_.each(g.edges(),function(e){var edge=g.edge(e);edge.minlen*=2;if(edge.labelpos.toLowerCase()!=="c"){if(graph.rankdir==="TB"||graph.rankdir==="BT"){edge.width+=edge.labeloffset}else{edge.height+=edge.labeloffset}}})}function injectEdgeLabelProxies(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.width&&edge.height){var v=g.node(e.v),w=g.node(e.w),label={rank:(w.rank-v.rank)/2+v.rank,e:e};util.addDummyNode(g,"edge-proxy",label,"_ep")}})}function assignRankMinMax(g){var maxRank=0;_.each(g.nodes(),function(v){var node=g.node(v);if(node.borderTop){node.minRank=g.node(node.borderTop).rank;node.maxRank=g.node(node.borderBottom).rank;maxRank=_.max(maxRank,node.maxRank)}});g.graph().maxRank=maxRank}function removeEdgeLabelProxies(g){_.each(g.nodes(),function(v){var node=g.node(v);if(node.dummy==="edge-proxy"){g.edge(node.e).labelRank=node.rank;g.removeNode(v)}})}function translateGraph(g){var minX=Number.POSITIVE_INFINITY,maxX=0,minY=Number.POSITIVE_INFINITY,maxY=0,graphLabel=g.graph(),marginX=graphLabel.marginx||0,marginY=graphLabel.marginy||0;function getExtremes(attrs){var x=attrs.x,y=attrs.y,w=attrs.width,h=attrs.height;minX=Math.min(minX,x-w/2);maxX=Math.max(maxX,x+w/2);minY=Math.min(minY,y-h/2);maxY=Math.max(maxY,y+h/2)}_.each(g.nodes(),function(v){getExtremes(g.node(v))});_.each(g.edges(),function(e){var edge=g.edge(e);if(_.has(edge,"x")){getExtremes(edge)}});minX-=marginX;minY-=marginY;_.each(g.nodes(),function(v){var node=g.node(v);node.x-=minX;node.y-=minY});_.each(g.edges(),function(e){var edge=g.edge(e);_.each(edge.points,function(p){p.x-=minX;p.y-=minY});if(_.has(edge,"x")){edge.x-=minX}if(_.has(edge,"y")){edge.y-=minY}});graphLabel.width=maxX-minX+marginX;graphLabel.height=maxY-minY+marginY}function assignNodeIntersects(g){_.each(g.edges(),function(e){var edge=g.edge(e),nodeV=g.node(e.v),nodeW=g.node(e.w),p1,p2;if(!edge.points){edge.points=[];p1=nodeW;p2=nodeV}else{p1=edge.points[0];p2=edge.points[edge.points.length-1]}edge.points.unshift(util.intersectRect(nodeV,p1));edge.points.push(util.intersectRect(nodeW,p2))})}function fixupEdgeLabelCoords(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(_.has(edge,"x")){if(edge.labelpos==="l"||edge.labelpos==="r"){edge.width-=edge.labeloffset}switch(edge.labelpos){case"l":edge.x-=edge.width/2+edge.labeloffset;break;case"r":edge.x+=edge.width/2+edge.labeloffset;break}}})}function reversePointsForReversedEdges(g){_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.reversed){edge.points.reverse()}})}function removeBorderNodes(g){_.each(g.nodes(),function(v){if(g.children(v).length){var node=g.node(v),t=g.node(node.borderTop),b=g.node(node.borderBottom),l=g.node(_.last(node.borderLeft)),r=g.node(_.last(node.borderRight));node.width=Math.abs(r.x-l.x);node.height=Math.abs(b.y-t.y);node.x=l.x+node.width/2;node.y=t.y+node.height/2}});_.each(g.nodes(),function(v){if(g.node(v).dummy==="border"){g.removeNode(v)}})}function removeSelfEdges(g){_.each(g.edges(),function(e){if(e.v===e.w){var node=g.node(e.v);if(!node.selfEdges){node.selfEdges=[]}node.selfEdges.push({e:e,label:g.edge(e)});g.removeEdge(e)}})}function insertSelfEdges(g){var layers=util.buildLayerMatrix(g);_.each(layers,function(layer){var orderShift=0;_.each(layer,function(v,i){var node=g.node(v);node.order=i+orderShift;_.each(node.selfEdges,function(selfEdge){util.addDummyNode(g,"selfedge",{width:selfEdge.label.width,height:selfEdge.label.height,rank:node.rank,order:i+ ++orderShift,e:selfEdge.e,label:selfEdge.label},"_se")});delete node.selfEdges})})}function positionSelfEdges(g){_.each(g.nodes(),function(v){var node=g.node(v);if(node.dummy==="selfedge"){var selfNode=g.node(node.e.v),x=selfNode.x+selfNode.width/2,y=selfNode.y,dx=node.x-x,dy=selfNode.height/2;g.setEdge(node.e,node.label);g.removeNode(v);node.label.points=[{x:x+2*dx/3,y:y-dy},{x:x+5*dx/6,y:y-dy},{x:x+dx,y:y},{x:x+5*dx/6,y:y+dy},{x:x+2*dx/3,y:y+dy}];node.label.x=node.x;node.label.y=node.y}})}function selectNumberAttrs(obj,attrs){return _.mapValues(_.pick(obj,attrs),Number)}function canonicalize(attrs){var newAttrs={};_.each(attrs,function(v,k){newAttrs[k.toLowerCase()]=v});return newAttrs}},{"./acyclic":2,"./add-border-segments":3,"./coordinate-system":4,"./graphlib":7,"./lodash":10,"./nesting-graph":11,"./normalize":12,"./order":17,"./parent-dummy-chains":22,"./position":24,"./rank":26,"./util":29}],10:[function(require,module,exports){var lodash;if(require){try{lodash=require("lodash")}catch(e){}}if(!lodash){lodash=window._}module.exports=lodash},{lodash:51}],11:[function(require,module,exports){var _=require("./lodash"),util=require("./util");module.exports={run:run,cleanup:cleanup};function run(g){var root=util.addDummyNode(g,"root",{},"_root"),depths=treeDepths(g),height=_.max(depths)-1,nodeSep=2*height+1;g.graph().nestingRoot=root;_.each(g.edges(),function(e){g.edge(e).minlen*=nodeSep});var weight=sumWeights(g)+1;_.each(g.children(),function(child){dfs(g,root,nodeSep,weight,height,depths,child)});g.graph().nodeRankFactor=nodeSep}function dfs(g,root,nodeSep,weight,height,depths,v){var children=g.children(v);if(!children.length){if(v!==root){g.setEdge(root,v,{weight:0,minlen:nodeSep})}return}var top=util.addBorderNode(g,"_bt"),bottom=util.addBorderNode(g,"_bb"),label=g.node(v);g.setParent(top,v);label.borderTop=top;g.setParent(bottom,v);label.borderBottom=bottom;_.each(children,function(child){dfs(g,root,nodeSep,weight,height,depths,child);var childNode=g.node(child),childTop=childNode.borderTop?childNode.borderTop:child,childBottom=childNode.borderBottom?childNode.borderBottom:child,thisWeight=childNode.borderTop?weight:2*weight,minlen=childTop!==childBottom?1:height-depths[v]+1;g.setEdge(top,childTop,{weight:thisWeight,minlen:minlen,nestingEdge:true});g.setEdge(childBottom,bottom,{weight:thisWeight,minlen:minlen,nestingEdge:true})});if(!g.parent(v)){g.setEdge(root,top,{weight:0,minlen:height+depths[v]})}}function treeDepths(g){var depths={};function dfs(v,depth){var children=g.children(v);if(children&&children.length){_.each(children,function(child){dfs(child,depth+1)})}depths[v]=depth}_.each(g.children(),function(v){dfs(v,1)});return depths}function sumWeights(g){return _.reduce(g.edges(),function(acc,e){return acc+g.edge(e).weight},0)}function cleanup(g){var graphLabel=g.graph();g.removeNode(graphLabel.nestingRoot);delete graphLabel.nestingRoot;_.each(g.edges(),function(e){var edge=g.edge(e);if(edge.nestingEdge){g.removeEdge(e)}})}},{"./lodash":10,"./util":29}],12:[function(require,module,exports){"use strict";var _=require("./lodash"),util=require("./util");module.exports={run:run,undo:undo};function run(g){g.graph().dummyChains=[];_.each(g.edges(),function(edge){normalizeEdge(g,edge)})}function normalizeEdge(g,e){var v=e.v,vRank=g.node(v).rank,w=e.w,wRank=g.node(w).rank,name=e.name,edgeLabel=g.edge(e),labelRank=edgeLabel.labelRank;if(wRank===vRank+1)return;g.removeEdge(e);var dummy,attrs,i;for(i=0,++vRank;vRank<wRank;++i,++vRank){edgeLabel.points=[];attrs={width:0,height:0,edgeLabel:edgeLabel,edgeObj:e,rank:vRank};dummy=util.addDummyNode(g,"edge",attrs,"_d");if(vRank===labelRank){attrs.width=edgeLabel.width;attrs.height=edgeLabel.height;attrs.dummy="edge-label";attrs.labelpos=edgeLabel.labelpos}g.setEdge(v,dummy,{weight:edgeLabel.weight},name);if(i===0){g.graph().dummyChains.push(dummy)}v=dummy}g.setEdge(v,w,{weight:edgeLabel.weight},name)}function undo(g){_.each(g.graph().dummyChains,function(v){var node=g.node(v),origLabel=node.edgeLabel,w;g.setEdge(node.edgeObj,origLabel);while(node.dummy){w=g.successors(v)[0];g.removeNode(v);origLabel.points.push({x:node.x,y:node.y});if(node.dummy==="edge-label"){origLabel.x=node.x;origLabel.y=node.y;origLabel.width=node.width;origLabel.height=node.height}v=w;node=g.node(v)}})}},{"./lodash":10,"./util":29}],13:[function(require,module,exports){var _=require("../lodash");module.exports=addSubgraphConstraints;function addSubgraphConstraints(g,cg,vs){var prev={},rootPrev;_.each(vs,function(v){var child=g.parent(v),parent,prevChild;while(child){parent=g.parent(child);if(parent){prevChild=prev[parent];prev[parent]=child}else{prevChild=rootPrev;rootPrev=child}if(prevChild&&prevChild!==child){cg.setEdge(prevChild,child);return}child=parent}})}},{"../lodash":10}],14:[function(require,module,exports){var _=require("../lodash");module.exports=barycenter;function barycenter(g,movable){return _.map(movable,function(v){var inV=g.inEdges(v);if(!inV.length){return{v:v}}else{var result=_.reduce(inV,function(acc,e){var edge=g.edge(e),nodeU=g.node(e.v);return{sum:acc.sum+edge.weight*nodeU.order,weight:acc.weight+edge.weight}},{sum:0,weight:0});return{v:v,barycenter:result.sum/result.weight,weight:result.weight}}})}},{"../lodash":10}],15:[function(require,module,exports){var _=require("../lodash"),Graph=require("../graphlib").Graph;module.exports=buildLayerGraph;function buildLayerGraph(g,rank,relationship){var root=createRootNode(g),result=new Graph({compound:true}).setGraph({root:root}).setDefaultNodeLabel(function(v){return g.node(v)});_.each(g.nodes(),function(v){var node=g.node(v),parent=g.parent(v);if(node.rank===rank||node.minRank<=rank&&rank<=node.maxRank){result.setNode(v);result.setParent(v,parent||root);_.each(g[relationship](v),function(e){var u=e.v===v?e.w:e.v,edge=result.edge(u,v),weight=!_.isUndefined(edge)?edge.weight:0;result.setEdge(u,v,{weight:g.edge(e).weight+weight})});if(_.has(node,"minRank")){result.setNode(v,{borderLeft:node.borderLeft[rank],borderRight:node.borderRight[rank]})}}});return result}function createRootNode(g){var v;while(g.hasNode(v=_.uniqueId("_root")));return v}},{"../graphlib":7,"../lodash":10}],16:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=crossCount;function crossCount(g,layering){var cc=0;for(var i=1;i<layering.length;++i){cc+=twoLayerCrossCount(g,layering[i-1],layering[i])}return cc}function twoLayerCrossCount(g,northLayer,southLayer){var southPos=_.zipObject(southLayer,_.map(southLayer,function(v,i){return i}));var southEntries=_.flatten(_.map(northLayer,function(v){return _.chain(g.outEdges(v)).map(function(e){return{pos:southPos[e.w],weight:g.edge(e).weight}}).sortBy("pos").value()}),true);var firstIndex=1;while(firstIndex<southLayer.length)firstIndex<<=1;var treeSize=2*firstIndex-1;firstIndex-=1;var tree=_.map(new Array(treeSize),function(){return 0});var cc=0;_.each(southEntries.forEach(function(entry){var index=entry.pos+firstIndex;tree[index]+=entry.weight;var weightSum=0;while(index>0){if(index%2){weightSum+=tree[index+1]}index=index-1>>1;tree[index]+=entry.weight}cc+=entry.weight*weightSum}));return cc}},{"../lodash":10}],17:[function(require,module,exports){"use strict";var _=require("../lodash"),initOrder=require("./init-order"),crossCount=require("./cross-count"),sortSubgraph=require("./sort-subgraph"),buildLayerGraph=require("./build-layer-graph"),addSubgraphConstraints=require("./add-subgraph-constraints"),Graph=require("../graphlib").Graph,util=require("../util");module.exports=order;function order(g){var maxRank=util.maxRank(g),downLayerGraphs=buildLayerGraphs(g,_.range(1,maxRank+1),"inEdges"),upLayerGraphs=buildLayerGraphs(g,_.range(maxRank-1,-1,-1),"outEdges");var layering=initOrder(g);assignOrder(g,layering);var bestCC=Number.POSITIVE_INFINITY,best;for(var i=0,lastBest=0;lastBest<4;++i,++lastBest){sweepLayerGraphs(i%2?downLayerGraphs:upLayerGraphs,i%4>=2);layering=util.buildLayerMatrix(g);var cc=crossCount(g,layering);if(cc<bestCC){lastBest=0;best=_.cloneDeep(layering);bestCC=cc}}assignOrder(g,best)}function buildLayerGraphs(g,ranks,relationship){return _.map(ranks,function(rank){return buildLayerGraph(g,rank,relationship)})}function sweepLayerGraphs(layerGraphs,biasRight){var cg=new Graph;_.each(layerGraphs,function(lg){var root=lg.graph().root;var sorted=sortSubgraph(lg,root,cg,biasRight);_.each(sorted.vs,function(v,i){lg.node(v).order=i});addSubgraphConstraints(lg,cg,sorted.vs)})}function assignOrder(g,layering){_.each(layering,function(layer){_.each(layer,function(v,i){g.node(v).order=i})})}},{"../graphlib":7,"../lodash":10,"../util":29,"./add-subgraph-constraints":13,"./build-layer-graph":15,"./cross-count":16,"./init-order":18,"./sort-subgraph":20}],18:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=initOrder;function initOrder(g){var visited={},simpleNodes=_.filter(g.nodes(),function(v){return!g.children(v).length}),maxRank=_.max(_.map(simpleNodes,function(v){return g.node(v).rank})),layers=_.map(_.range(maxRank+1),function(){return[]});function dfs(v){if(_.has(visited,v))return;visited[v]=true;var node=g.node(v);layers[node.rank].push(v);_.each(g.successors(v),dfs)}var orderedVs=_.sortBy(simpleNodes,function(v){return g.node(v).rank});_.each(orderedVs,dfs);return layers}},{"../lodash":10}],19:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports=resolveConflicts;function resolveConflicts(entries,cg){var mappedEntries={};_.each(entries,function(entry,i){var tmp=mappedEntries[entry.v]={indegree:0,"in":[],out:[],vs:[entry.v],i:i};if(!_.isUndefined(entry.barycenter)){tmp.barycenter=entry.barycenter;tmp.weight=entry.weight}});_.each(cg.edges(),function(e){var entryV=mappedEntries[e.v],entryW=mappedEntries[e.w];if(!_.isUndefined(entryV)&&!_.isUndefined(entryW)){entryW.indegree++;entryV.out.push(mappedEntries[e.w])}});var sourceSet=_.filter(mappedEntries,function(entry){return!entry.indegree});return doResolveConflicts(sourceSet)}function doResolveConflicts(sourceSet){var entries=[];function handleIn(vEntry){return function(uEntry){if(uEntry.merged){return}if(_.isUndefined(uEntry.barycenter)||_.isUndefined(vEntry.barycenter)||uEntry.barycenter>=vEntry.barycenter){mergeEntries(vEntry,uEntry)}}}function handleOut(vEntry){return function(wEntry){wEntry.in.push(vEntry);if(--wEntry.indegree===0){sourceSet.push(wEntry)}}}while(sourceSet.length){var entry=sourceSet.pop();entries.push(entry);_.each(entry.in.reverse(),handleIn(entry));_.each(entry.out,handleOut(entry))}return _.chain(entries).filter(function(entry){return!entry.merged}).map(function(entry){return _.pick(entry,["vs","i","barycenter","weight"])}).value()}function mergeEntries(target,source){var sum=0,weight=0;if(target.weight){sum+=target.barycenter*target.weight;weight+=target.weight}if(source.weight){sum+=source.barycenter*source.weight;weight+=source.weight}target.vs=source.vs.concat(target.vs);target.barycenter=sum/weight;target.weight=weight;target.i=Math.min(source.i,target.i);source.merged=true}},{"../lodash":10}],20:[function(require,module,exports){var _=require("../lodash"),barycenter=require("./barycenter"),resolveConflicts=require("./resolve-conflicts"),sort=require("./sort");module.exports=sortSubgraph;function sortSubgraph(g,v,cg,biasRight){var movable=g.children(v),node=g.node(v),bl=node?node.borderLeft:undefined,br=node?node.borderRight:undefined,subgraphs={};if(bl){movable=_.filter(movable,function(w){return w!==bl&&w!==br})}var barycenters=barycenter(g,movable);_.each(barycenters,function(entry){if(g.children(entry.v).length){var subgraphResult=sortSubgraph(g,entry.v,cg,biasRight);subgraphs[entry.v]=subgraphResult;if(_.has(subgraphResult,"barycenter")){mergeBarycenters(entry,subgraphResult)}}});var entries=resolveConflicts(barycenters,cg);expandSubgraphs(entries,subgraphs);var result=sort(entries,biasRight);if(bl){result.vs=_.flatten([bl,result.vs,br],true);if(g.predecessors(bl).length){var blPred=g.node(g.predecessors(bl)[0]),brPred=g.node(g.predecessors(br)[0]);if(!_.has(result,"barycenter")){result.barycenter=0;result.weight=0}result.barycenter=(result.barycenter*result.weight+blPred.order+brPred.order)/(result.weight+2);result.weight+=2}}return result}function expandSubgraphs(entries,subgraphs){_.each(entries,function(entry){entry.vs=_.flatten(entry.vs.map(function(v){if(subgraphs[v]){return subgraphs[v].vs}return v}),true)})}function mergeBarycenters(target,other){if(!_.isUndefined(target.barycenter)){target.barycenter=(target.barycenter*target.weight+other.barycenter*other.weight)/(target.weight+other.weight);target.weight+=other.weight}else{target.barycenter=other.barycenter;target.weight=other.weight}}},{"../lodash":10,"./barycenter":14,"./resolve-conflicts":19,"./sort":21}],21:[function(require,module,exports){var _=require("../lodash"),util=require("../util");module.exports=sort;function sort(entries,biasRight){var parts=util.partition(entries,function(entry){return _.has(entry,"barycenter")});var sortable=parts.lhs,unsortable=_.sortBy(parts.rhs,function(entry){return-entry.i}),vs=[],sum=0,weight=0,vsIndex=0;sortable.sort(compareWithBias(!!biasRight));vsIndex=consumeUnsortable(vs,unsortable,vsIndex);_.each(sortable,function(entry){vsIndex+=entry.vs.length;vs.push(entry.vs);sum+=entry.barycenter*entry.weight;weight+=entry.weight;vsIndex=consumeUnsortable(vs,unsortable,vsIndex)});var result={vs:_.flatten(vs,true)};if(weight){result.barycenter=sum/weight;result.weight=weight}return result}function consumeUnsortable(vs,unsortable,index){var last;while(unsortable.length&&(last=_.last(unsortable)).i<=index){unsortable.pop();vs.push(last.vs);index++}return index}function compareWithBias(bias){return function(entryV,entryW){if(entryV.barycenter<entryW.barycenter){return-1}else if(entryV.barycenter>entryW.barycenter){return 1}return!bias?entryV.i-entryW.i:entryW.i-entryV.i}}},{"../lodash":10,"../util":29}],22:[function(require,module,exports){var _=require("./lodash");module.exports=parentDummyChains;function parentDummyChains(g){var postorderNums=postorder(g);_.each(g.graph().dummyChains,function(v){var node=g.node(v),edgeObj=node.edgeObj,pathData=findPath(g,postorderNums,edgeObj.v,edgeObj.w),path=pathData.path,lca=pathData.lca,pathIdx=0,pathV=path[pathIdx],ascending=true;while(v!==edgeObj.w){node=g.node(v);if(ascending){while((pathV=path[pathIdx])!==lca&&g.node(pathV).maxRank<node.rank){pathIdx++}if(pathV===lca){ascending=false}}if(!ascending){while(pathIdx<path.length-1&&g.node(pathV=path[pathIdx+1]).minRank<=node.rank){pathIdx++}pathV=path[pathIdx]}g.setParent(v,pathV);v=g.successors(v)[0]}})}function findPath(g,postorderNums,v,w){var vPath=[],wPath=[],low=Math.min(postorderNums[v].low,postorderNums[w].low),lim=Math.max(postorderNums[v].lim,postorderNums[w].lim),parent,lca;parent=v;do{parent=g.parent(parent);vPath.push(parent)}while(parent&&(postorderNums[parent].low>low||lim>postorderNums[parent].lim));lca=parent;parent=w;while((parent=g.parent(parent))!==lca){wPath.push(parent)}return{path:vPath.concat(wPath.reverse()),lca:lca}}function postorder(g){var result={},lim=0;function dfs(v){var low=lim;_.each(g.children(v),dfs);result[v]={low:low,lim:lim++}}_.each(g.children(),dfs);return result}},{"./lodash":10}],23:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util");module.exports={positionX:positionX,findType1Conflicts:findType1Conflicts,findType2Conflicts:findType2Conflicts,addConflict:addConflict,hasConflict:hasConflict,verticalAlignment:verticalAlignment,horizontalCompaction:horizontalCompaction,alignCoordinates:alignCoordinates,findSmallestWidthAlignment:findSmallestWidthAlignment,balance:balance};function findType1Conflicts(g,layering){var conflicts={};function visitLayer(prevLayer,layer){var k0=0,scanPos=0,prevLayerLength=prevLayer.length,lastNode=_.last(layer);_.each(layer,function(v,i){var w=findOtherInnerSegmentNode(g,v),k1=w?g.node(w).order:prevLayerLength;if(w||v===lastNode){_.each(layer.slice(scanPos,i+1),function(scanNode){_.each(g.predecessors(scanNode),function(u){var uLabel=g.node(u),uPos=uLabel.order;
-if((uPos<k0||k1<uPos)&&!(uLabel.dummy&&g.node(scanNode).dummy)){addConflict(conflicts,u,scanNode)}})});scanPos=i+1;k0=k1}});return layer}_.reduce(layering,visitLayer);return conflicts}function findType2Conflicts(g,layering){var conflicts={};function scan(south,southPos,southEnd,prevNorthBorder,nextNorthBorder){var v;_.each(_.range(southPos,southEnd),function(i){v=south[i];if(g.node(v).dummy){_.each(g.predecessors(v),function(u){var uNode=g.node(u);if(uNode.dummy&&(uNode.order<prevNorthBorder||uNode.order>nextNorthBorder)){addConflict(conflicts,u,v)}})}})}function visitLayer(north,south){var prevNorthPos=-1,nextNorthPos,southPos=0;_.each(south,function(v,southLookahead){if(g.node(v).dummy==="border"){var predecessors=g.predecessors(v);if(predecessors.length){nextNorthPos=g.node(predecessors[0]).order;scan(south,southPos,southLookahead,prevNorthPos,nextNorthPos);southPos=southLookahead;prevNorthPos=nextNorthPos}}scan(south,southPos,south.length,nextNorthPos,north.length)});return south}_.reduce(layering,visitLayer);return conflicts}function findOtherInnerSegmentNode(g,v){if(g.node(v).dummy){return _.find(g.predecessors(v),function(u){return g.node(u).dummy})}}function addConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}var conflictsV=conflicts[v];if(!conflictsV){conflicts[v]=conflictsV={}}conflictsV[w]=true}function hasConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}return _.has(conflicts[v],w)}function verticalAlignment(g,layering,conflicts,neighborFn){var root={},align={},pos={};_.each(layering,function(layer){_.each(layer,function(v,order){root[v]=v;align[v]=v;pos[v]=order})});_.each(layering,function(layer){var prevIdx=-1;_.each(layer,function(v){var ws=neighborFn(v);if(ws.length){ws=_.sortBy(ws,function(w){return pos[w]});var mp=(ws.length-1)/2;for(var i=Math.floor(mp),il=Math.ceil(mp);i<=il;++i){var w=ws[i];if(align[v]===v&&prevIdx<pos[w]&&!hasConflict(conflicts,v,w)){align[w]=v;align[v]=root[v]=root[w];prevIdx=pos[w]}}}})});return{root:root,align:align}}function horizontalCompaction(g,layering,root,align,reverseSep){var shift={},sink={},xs={},pred={},graphLabel=g.graph(),sepFn=sep(graphLabel.nodesep,graphLabel.edgesep,reverseSep);_.each(layering,function(layer){_.each(layer,function(v,order){sink[v]=v;shift[v]=Number.POSITIVE_INFINITY;pred[v]=layer[order-1]})});_.each(g.nodes(),function(v){if(root[v]===v){placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,v)}});_.each(layering,function(layer){_.each(layer,function(v){xs[v]=xs[root[v]];if(v===root[v]&&shift[sink[root[v]]]<Number.POSITIVE_INFINITY){xs[v]+=shift[sink[root[v]]]}})});return xs}function placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,v){if(_.has(xs,v))return;xs[v]=0;var w=v,u;do{if(pred[w]){u=root[pred[w]];placeBlock(g,layering,sepFn,root,align,shift,sink,pred,xs,u);if(sink[v]===v){sink[v]=sink[u]}var delta=sepFn(g,w,pred[w]);if(sink[v]!==sink[u]){shift[sink[u]]=Math.min(shift[sink[u]],xs[v]-xs[u]-delta)}else{xs[v]=Math.max(xs[v],xs[u]+delta)}}w=align[w]}while(w!==v)}function findSmallestWidthAlignment(g,xss){return _.min(xss,function(xs){var min=_.min(xs,function(x,v){return x-width(g,v)/2}),max=_.max(xs,function(x,v){return x+width(g,v)/2});return max-min})}function alignCoordinates(xss,alignTo){var alignToMin=_.min(alignTo),alignToMax=_.max(alignTo);_.each(["u","d"],function(vert){_.each(["l","r"],function(horiz){var alignment=vert+horiz,xs=xss[alignment],delta;if(xs===alignTo)return;delta=horiz==="l"?alignToMin-_.min(xs):alignToMax-_.max(xs);if(delta){xss[alignment]=_.mapValues(xs,function(x){return x+delta})}})})}function balance(xss,align){return _.mapValues(xss.ul,function(ignore,v){if(align){return xss[align.toLowerCase()][v]}else{var xs=_.sortBy(_.pluck(xss,v));return(xs[1]+xs[2])/2}})}function positionX(g){var layering=util.buildLayerMatrix(g),conflicts=_.merge(findType1Conflicts(g,layering),findType2Conflicts(g,layering));var xss={},adjustedLayering;_.each(["u","d"],function(vert){adjustedLayering=vert==="u"?layering:_.values(layering).reverse();_.each(["l","r"],function(horiz){if(horiz==="r"){adjustedLayering=_.map(adjustedLayering,function(inner){return _.values(inner).reverse()})}var neighborFn=_.bind(vert==="u"?g.predecessors:g.successors,g);var align=verticalAlignment(g,adjustedLayering,conflicts,neighborFn);var xs=horizontalCompaction(g,adjustedLayering,align.root,align.align,horiz==="r");if(horiz==="r"){xs=_.mapValues(xs,function(x){return-x})}xss[vert+horiz]=xs})});var smallestWidth=findSmallestWidthAlignment(g,xss);alignCoordinates(xss,smallestWidth);return balance(xss,g.graph().align)}function sep(nodeSep,edgeSep,reverseSep){return function(g,v,w){var vLabel=g.node(v),wLabel=g.node(w),sum=0,delta;sum+=vLabel.width/2;if(_.has(vLabel,"labelpos")){switch(vLabel.labelpos.toLowerCase()){case"l":delta=-vLabel.width/2;break;case"r":delta=vLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;sum+=(vLabel.dummy?edgeSep:nodeSep)/2;sum+=(wLabel.dummy?edgeSep:nodeSep)/2;sum+=wLabel.width/2;if(_.has(wLabel,"labelpos")){switch(wLabel.labelpos.toLowerCase()){case"l":delta=wLabel.width/2;break;case"r":delta=-wLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;return sum}}function width(g,v){return g.node(v).width}},{"../lodash":10,"../util":29}],24:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util"),positionX=require("./bk").positionX;module.exports=position;function position(g){g=util.asNonCompoundGraph(g);positionY(g);_.each(positionX(g),function(x,v){g.node(v).x=x})}function positionY(g){var layering=util.buildLayerMatrix(g),rankSep=g.graph().ranksep,prevY=0;_.each(layering,function(layer){var maxHeight=_.max(_.map(layer,function(v){return g.node(v).height}));_.each(layer,function(v){g.node(v).y=prevY+maxHeight/2});prevY+=maxHeight+rankSep})}},{"../lodash":10,"../util":29,"./bk":23}],25:[function(require,module,exports){"use strict";var _=require("../lodash"),Graph=require("../graphlib").Graph,slack=require("./util").slack;module.exports=feasibleTree;function feasibleTree(g){var t=new Graph({directed:false});var start=g.nodes()[0],size=g.nodeCount();t.setNode(start,{});var edge,delta;while(tightTree(t,g)<size){edge=findMinSlackEdge(t,g);delta=t.hasNode(edge.v)?slack(g,edge):-slack(g,edge);shiftRanks(t,g,delta)}return t}function tightTree(t,g){function dfs(v){_.each(g.nodeEdges(v),function(e){var edgeV=e.v,w=v===edgeV?e.w:edgeV;if(!t.hasNode(w)&&!slack(g,e)){t.setNode(w,{});t.setEdge(v,w,{});dfs(w)}})}_.each(t.nodes(),dfs);return t.nodeCount()}function findMinSlackEdge(t,g){return _.min(g.edges(),function(e){if(t.hasNode(e.v)!==t.hasNode(e.w)){return slack(g,e)}})}function shiftRanks(t,g,delta){_.each(t.nodes(),function(v){g.node(v).rank+=delta})}},{"../graphlib":7,"../lodash":10,"./util":28}],26:[function(require,module,exports){"use strict";var rankUtil=require("./util"),longestPath=rankUtil.longestPath,feasibleTree=require("./feasible-tree"),networkSimplex=require("./network-simplex");module.exports=rank;function rank(g){switch(g.graph().ranker){case"network-simplex":networkSimplexRanker(g);break;case"tight-tree":tightTreeRanker(g);break;case"longest-path":longestPathRanker(g);break;default:networkSimplexRanker(g)}}var longestPathRanker=longestPath;function tightTreeRanker(g){longestPath(g);feasibleTree(g)}function networkSimplexRanker(g){networkSimplex(g)}},{"./feasible-tree":25,"./network-simplex":27,"./util":28}],27:[function(require,module,exports){"use strict";var _=require("../lodash"),feasibleTree=require("./feasible-tree"),slack=require("./util").slack,initRank=require("./util").longestPath,preorder=require("../graphlib").alg.preorder,postorder=require("../graphlib").alg.postorder,simplify=require("../util").simplify;module.exports=networkSimplex;networkSimplex.initLowLimValues=initLowLimValues;networkSimplex.initCutValues=initCutValues;networkSimplex.calcCutValue=calcCutValue;networkSimplex.leaveEdge=leaveEdge;networkSimplex.enterEdge=enterEdge;networkSimplex.exchangeEdges=exchangeEdges;function networkSimplex(g){g=simplify(g);initRank(g);var t=feasibleTree(g);initLowLimValues(t);initCutValues(t,g);var e,f;while(e=leaveEdge(t)){f=enterEdge(t,g,e);exchangeEdges(t,g,e,f)}}function initCutValues(t,g){var vs=postorder(t,t.nodes());vs=vs.slice(0,vs.length-1);_.each(vs,function(v){assignCutValue(t,g,v)})}function assignCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent;t.edge(child,parent).cutvalue=calcCutValue(t,g,child)}function calcCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent,childIsTail=true,graphEdge=g.edge(child,parent),cutValue=0;if(!graphEdge){childIsTail=false;graphEdge=g.edge(parent,child)}cutValue=graphEdge.weight;_.each(g.nodeEdges(child),function(e){var isOutEdge=e.v===child,other=isOutEdge?e.w:e.v;if(other!==parent){var pointsToHead=isOutEdge===childIsTail,otherWeight=g.edge(e).weight;cutValue+=pointsToHead?otherWeight:-otherWeight;if(isTreeEdge(t,child,other)){var otherCutValue=t.edge(child,other).cutvalue;cutValue+=pointsToHead?-otherCutValue:otherCutValue}}});return cutValue}function initLowLimValues(tree,root){if(arguments.length<2){root=tree.nodes()[0]}dfsAssignLowLim(tree,{},1,root)}function dfsAssignLowLim(tree,visited,nextLim,v,parent){var low=nextLim,label=tree.node(v);visited[v]=true;_.each(tree.neighbors(v),function(w){if(!_.has(visited,w)){nextLim=dfsAssignLowLim(tree,visited,nextLim,w,v)}});label.low=low;label.lim=nextLim++;if(parent){label.parent=parent}else{delete label.parent}return nextLim}function leaveEdge(tree){return _.find(tree.edges(),function(e){return tree.edge(e).cutvalue<0})}function enterEdge(t,g,edge){var v=edge.v,w=edge.w;if(!g.hasEdge(v,w)){v=edge.w;w=edge.v}var vLabel=t.node(v),wLabel=t.node(w),tailLabel=vLabel,flip=false;if(vLabel.lim>wLabel.lim){tailLabel=wLabel;flip=true}var candidates=_.filter(g.edges(),function(edge){return flip===isDescendant(t,t.node(edge.v),tailLabel)&&flip!==isDescendant(t,t.node(edge.w),tailLabel)});return _.min(candidates,function(edge){return slack(g,edge)})}function exchangeEdges(t,g,e,f){var v=e.v,w=e.w;t.removeEdge(v,w);t.setEdge(f.v,f.w,{});initLowLimValues(t);initCutValues(t,g);updateRanks(t,g)}function updateRanks(t,g){var root=_.find(t.nodes(),function(v){return!g.node(v).parent}),vs=preorder(t,root);vs=vs.slice(1);_.each(vs,function(v){var parent=t.node(v).parent,edge=g.edge(v,parent),flipped=false;if(!edge){edge=g.edge(parent,v);flipped=true}g.node(v).rank=g.node(parent).rank+(flipped?edge.minlen:-edge.minlen)})}function isTreeEdge(tree,u,v){return tree.hasEdge(u,v)}function isDescendant(tree,vLabel,rootLabel){return rootLabel.low<=vLabel.lim&&vLabel.lim<=rootLabel.lim}},{"../graphlib":7,"../lodash":10,"../util":29,"./feasible-tree":25,"./util":28}],28:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports={longestPath:longestPath,slack:slack};function longestPath(g){var visited={};function dfs(v){var label=g.node(v);if(_.has(visited,v)){return label.rank}visited[v]=true;var rank=_.min(_.map(g.outEdges(v),function(e){return dfs(e.w)-g.edge(e).minlen}));if(rank===Number.POSITIVE_INFINITY){rank=0}return label.rank=rank}_.each(g.sources(),dfs)}function slack(g,e){return g.node(e.w).rank-g.node(e.v).rank-g.edge(e).minlen}},{"../lodash":10}],29:[function(require,module,exports){"use strict";var _=require("./lodash"),Graph=require("./graphlib").Graph;module.exports={addDummyNode:addDummyNode,simplify:simplify,asNonCompoundGraph:asNonCompoundGraph,successorWeights:successorWeights,predecessorWeights:predecessorWeights,intersectRect:intersectRect,buildLayerMatrix:buildLayerMatrix,normalizeRanks:normalizeRanks,removeEmptyRanks:removeEmptyRanks,addBorderNode:addBorderNode,maxRank:maxRank,partition:partition,time:time,notime:notime};function addDummyNode(g,type,attrs,name){var v;do{v=_.uniqueId(name)}while(g.hasNode(v));attrs.dummy=type;g.setNode(v,attrs);return v}function simplify(g){var simplified=(new Graph).setGraph(g.graph());_.each(g.nodes(),function(v){simplified.setNode(v,g.node(v))});_.each(g.edges(),function(e){var simpleLabel=simplified.edge(e.v,e.w)||{weight:0,minlen:1},label=g.edge(e);simplified.setEdge(e.v,e.w,{weight:simpleLabel.weight+label.weight,minlen:Math.max(simpleLabel.minlen,label.minlen)})});return simplified}function asNonCompoundGraph(g){var simplified=new Graph({multigraph:g.isMultigraph()}).setGraph(g.graph());_.each(g.nodes(),function(v){if(!g.children(v).length){simplified.setNode(v,g.node(v))}});_.each(g.edges(),function(e){simplified.setEdge(e,g.edge(e))});return simplified}function successorWeights(g){var weightMap=_.map(g.nodes(),function(v){var sucs={};_.each(g.outEdges(v),function(e){sucs[e.w]=(sucs[e.w]||0)+g.edge(e).weight});return sucs});return _.zipObject(g.nodes(),weightMap)}function predecessorWeights(g){var weightMap=_.map(g.nodes(),function(v){var preds={};_.each(g.inEdges(v),function(e){preds[e.v]=(preds[e.v]||0)+g.edge(e).weight});return preds});return _.zipObject(g.nodes(),weightMap)}function intersectRect(rect,point){var x=rect.x;var y=rect.y;var dx=point.x-x;var dy=point.y-y;var w=rect.width/2;var h=rect.height/2;if(!dx&&!dy){throw new Error("Not possible to find intersection inside of the rectangle")}var sx,sy;if(Math.abs(dy)*w>Math.abs(dx)*h){if(dy<0){h=-h}sx=h*dx/dy;sy=h}else{if(dx<0){w=-w}sx=w;sy=w*dy/dx}return{x:x+sx,y:y+sy}}function buildLayerMatrix(g){var layering=_.map(_.range(maxRank(g)+1),function(){return[]});_.each(g.nodes(),function(v){var node=g.node(v),rank=node.rank;if(!_.isUndefined(rank)){layering[rank][node.order]=v}});return layering}function normalizeRanks(g){var min=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));_.each(g.nodes(),function(v){var node=g.node(v);if(_.has(node,"rank")){node.rank-=min}})}function removeEmptyRanks(g){var offset=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));var layers=[];_.each(g.nodes(),function(v){var rank=g.node(v).rank-offset;if(!_.has(layers,rank)){layers[rank]=[]}layers[rank].push(v)});var delta=0,nodeRankFactor=g.graph().nodeRankFactor;_.each(layers,function(vs,i){if(_.isUndefined(vs)&&i%nodeRankFactor!==0){--delta}else if(delta){_.each(vs,function(v){g.node(v).rank+=delta})}})}function addBorderNode(g,prefix,rank,order){var node={width:0,height:0};if(arguments.length>=4){node.rank=rank;node.order=order}return addDummyNode(g,"border",node,prefix)}function maxRank(g){return _.max(_.map(g.nodes(),function(v){var rank=g.node(v).rank;if(!_.isUndefined(rank)){return rank}}))}function partition(collection,fn){var result={lhs:[],rhs:[]};_.each(collection,function(value){if(fn(value)){result.lhs.push(value)}else{result.rhs.push(value)}});return result}function time(name,fn){var start=_.now();try{return fn()}finally{console.log(name+" time: "+(_.now()-start)+"ms")}}function notime(name,fn){return fn()}},{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){module.exports="0.6.3"},{}],31:[function(require,module,exports){var lib=require("./lib");module.exports={Graph:lib.Graph,json:require("./lib/json"),alg:require("./lib/alg"),version:lib.version}},{"./lib":47,"./lib/alg":38,"./lib/json":48}],32:[function(require,module,exports){var _=require("../lodash");module.exports=components;function components(g){var visited={},cmpts=[],cmpt;function dfs(v){if(_.has(visited,v))return;visited[v]=true;cmpt.push(v);_.each(g.successors(v),dfs);_.each(g.predecessors(v),dfs)}_.each(g.nodes(),function(v){cmpt=[];dfs(v);if(cmpt.length){cmpts.push(cmpt)}});return cmpts}},{"../lodash":49}],33:[function(require,module,exports){var _=require("../lodash");module.exports=dfs;function dfs(g,vs,order){if(!_.isArray(vs)){vs=[vs]}var acc=[],visited={};_.each(vs,function(v){if(!g.hasNode(v)){throw new Error("Graph does not have node: "+v)}doDfs(g,v,order==="post",visited,acc)});return acc}function doDfs(g,v,postorder,visited,acc){if(!_.has(visited,v)){visited[v]=true;if(!postorder){acc.push(v)}_.each(g.neighbors(v),function(w){doDfs(g,w,postorder,visited,acc)});if(postorder){acc.push(v)}}}},{"../lodash":49}],34:[function(require,module,exports){var dijkstra=require("./dijkstra"),_=require("../lodash");module.exports=dijkstraAll;function dijkstraAll(g,weightFunc,edgeFunc){return _.transform(g.nodes(),function(acc,v){acc[v]=dijkstra(g,v,weightFunc,edgeFunc)},{})}},{"../lodash":49,"./dijkstra":35}],35:[function(require,module,exports){var _=require("../lodash"),PriorityQueue=require("../data/priority-queue");module.exports=dijkstra;var DEFAULT_WEIGHT_FUNC=_.constant(1);function dijkstra(g,source,weightFn,edgeFn){return runDijkstra(g,String(source),weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runDijkstra(g,source,weightFn,edgeFn){var results={},pq=new PriorityQueue,v,vEntry;var updateNeighbors=function(edge){var w=edge.v!==v?edge.v:edge.w,wEntry=results[w],weight=weightFn(edge),distance=vEntry.distance+weight;if(weight<0){throw new Error("dijkstra does not allow negative edge weights. "+"Bad edge: "+edge+" Weight: "+weight)}if(distance<wEntry.distance){wEntry.distance=distance;wEntry.predecessor=v;pq.decrease(w,distance)}};g.nodes().forEach(function(v){var distance=v===source?0:Number.POSITIVE_INFINITY;results[v]={distance:distance};pq.add(v,distance)});while(pq.size()>0){v=pq.removeMin();vEntry=results[v];if(vEntry.distance===Number.POSITIVE_INFINITY){break}edgeFn(v).forEach(updateNeighbors)}return results}},{"../data/priority-queue":45,"../lodash":49}],36:[function(require,module,exports){var _=require("../lodash"),tarjan=require("./tarjan");module.exports=findCycles;function findCycles(g){return _.filter(tarjan(g),function(cmpt){return cmpt.length>1})}},{"../lodash":49,"./tarjan":43}],37:[function(require,module,exports){var _=require("../lodash");module.exports=floydWarshall;var DEFAULT_WEIGHT_FUNC=_.constant(1);function floydWarshall(g,weightFn,edgeFn){return runFloydWarshall(g,weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runFloydWarshall(g,weightFn,edgeFn){var results={},nodes=g.nodes();nodes.forEach(function(v){results[v]={};results[v][v]={distance:0};nodes.forEach(function(w){if(v!==w){results[v][w]={distance:Number.POSITIVE_INFINITY}}});edgeFn(v).forEach(function(edge){var w=edge.v===v?edge.w:edge.v,d=weightFn(edge);results[v][w]={distance:d,predecessor:v}})});nodes.forEach(function(k){var rowK=results[k];nodes.forEach(function(i){var rowI=results[i];nodes.forEach(function(j){var ik=rowI[k];var kj=rowK[j];var ij=rowI[j];var altDistance=ik.distance+kj.distance;if(altDistance<ij.distance){ij.distance=altDistance;ij.predecessor=kj.predecessor}})})});return results}},{"../lodash":49}],38:[function(require,module,exports){module.exports={components:require("./components"),dijkstra:require("./dijkstra"),dijkstraAll:require("./dijkstra-all"),findCycles:require("./find-cycles"),floydWarshall:require("./floyd-warshall"),isAcyclic:require("./is-acyclic"),postorder:require("./postorder"),preorder:require("./preorder"),prim:require("./prim"),tarjan:require("./tarjan"),topsort:require("./topsort")}},{"./components":32,"./dijkstra":35,"./dijkstra-all":34,"./find-cycles":36,"./floyd-warshall":37,"./is-acyclic":39,"./postorder":40,"./preorder":41,"./prim":42,"./tarjan":43,"./topsort":44}],39:[function(require,module,exports){var topsort=require("./topsort");module.exports=isAcyclic;function isAcyclic(g){try{topsort(g)}catch(e){if(e instanceof topsort.CycleException){return false}throw e}return true}},{"./topsort":44}],40:[function(require,module,exports){var dfs=require("./dfs");module.exports=postorder;function postorder(g,vs){return dfs(g,vs,"post")}},{"./dfs":33}],41:[function(require,module,exports){var dfs=require("./dfs");module.exports=preorder;function preorder(g,vs){return dfs(g,vs,"pre")}},{"./dfs":33}],42:[function(require,module,exports){var _=require("../lodash"),Graph=require("../graph"),PriorityQueue=require("../data/priority-queue");module.exports=prim;function prim(g,weightFunc){var result=new Graph,parents={},pq=new PriorityQueue,v;function updateNeighbors(edge){var w=edge.v===v?edge.w:edge.v,pri=pq.priority(w);if(pri!==undefined){var edgeWeight=weightFunc(edge);if(edgeWeight<pri){parents[w]=v;pq.decrease(w,edgeWeight)}}}if(g.nodeCount()===0){return result}_.each(g.nodes(),function(v){pq.add(v,Number.POSITIVE_INFINITY);result.setNode(v)});pq.decrease(g.nodes()[0],0);var init=false;while(pq.size()>0){v=pq.removeMin();if(_.has(parents,v)){result.setEdge(v,parents[v])}else if(init){throw new Error("Input graph is not connected: "+g)}else{init=true}g.nodeEdges(v).forEach(updateNeighbors)}return result}},{"../data/priority-queue":45,"../graph":46,"../lodash":49}],43:[function(require,module,exports){var _=require("../lodash");module.exports=tarjan;function tarjan(g){var index=0,stack=[],visited={},results=[];function dfs(v){var entry=visited[v]={onStack:true,lowlink:index,index:index++};stack.push(v);g.successors(v).forEach(function(w){if(!_.has(visited,w)){dfs(w);entry.lowlink=Math.min(entry.lowlink,visited[w].lowlink)}else if(visited[w].onStack){entry.lowlink=Math.min(entry.lowlink,visited[w].index)}});if(entry.lowlink===entry.index){var cmpt=[],w;do{w=stack.pop();visited[w].onStack=false;cmpt.push(w)}while(v!==w);results.push(cmpt)}}g.nodes().forEach(function(v){if(!_.has(visited,v)){dfs(v)}});return results}},{"../lodash":49}],44:[function(require,module,exports){var _=require("../lodash");module.exports=topsort;topsort.CycleException=CycleException;function topsort(g){var visited={},stack={},results=[];function visit(node){if(_.has(stack,node)){throw new CycleException}if(!_.has(visited,node)){stack[node]=true;visited[node]=true;_.each(g.predecessors(node),visit);delete stack[node];results.push(node)}}_.each(g.sinks(),visit);if(_.size(visited)!==g.nodeCount()){throw new CycleException}return results}function CycleException(){}},{"../lodash":49}],45:[function(require,module,exports){var _=require("../lodash");module.exports=PriorityQueue;function PriorityQueue(){this._arr=[];this._keyIndices={}}PriorityQueue.prototype.size=function(){return this._arr.length};PriorityQueue.prototype.keys=function(){return this._arr.map(function(x){return x.key})};PriorityQueue.prototype.has=function(key){return _.has(this._keyIndices,key)};PriorityQueue.prototype.priority=function(key){var index=this._keyIndices[key];if(index!==undefined){return this._arr[index].priority}};PriorityQueue.prototype.min=function(){if(this.size()===0){throw new Error("Queue underflow")}return this._arr[0].key};PriorityQueue.prototype.add=function(key,priority){var keyIndices=this._keyIndices;key=String(key);if(!_.has(keyIndices,key)){var arr=this._arr;var index=arr.length;keyIndices[key]=index;arr.push({key:key,priority:priority});this._decrease(index);return true}return false};PriorityQueue.prototype.removeMin=function(){this._swap(0,this._arr.length-1);var min=this._arr.pop();delete this._keyIndices[min.key];this._heapify(0);return min.key};PriorityQueue.prototype.decrease=function(key,priority){var index=this._keyIndices[key];if(priority>this._arr[index].priority){throw new Error("New priority is greater than current priority. "+"Key: "+key+" Old: "+this._arr[index].priority+" New: "+priority)}this._arr[index].priority=priority;this._decrease(index)};PriorityQueue.prototype._heapify=function(i){var arr=this._arr;var l=2*i,r=l+1,largest=i;if(l<arr.length){largest=arr[l].priority<arr[largest].priority?l:largest;if(r<arr.length){largest=arr[r].priority<arr[largest].priority?r:largest}if(largest!==i){this._swap(i,largest);this._heapify(largest)}}};PriorityQueue.prototype._decrease=function(index){var arr=this._arr;var priority=arr[index].priority;var parent;while(index!==0){parent=index>>1;if(arr[parent].priority<priority){break}this._swap(index,parent);index=parent}};PriorityQueue.prototype._swap=function(i,j){var arr=this._arr;var keyIndices=this._keyIndices;var origArrI=arr[i];var origArrJ=arr[j];arr[i]=origArrJ;arr[j]=origArrI;keyIndices[origArrJ.key]=i;keyIndices[origArrI.key]=j}},{"../lodash":49}],46:[function(require,module,exports){"use strict";var _=require("./lodash");module.exports=Graph;var DEFAULT_EDGE_NAME="\x00",GRAPH_NODE="\x00",EDGE_KEY_DELIM="
";function Graph(opts){this._isDirected=_.has(opts,"directed")?opts.directed:true;this._isMultigraph=_.has(opts,"multigraph")?opts.multigraph:false;this._isCompound=_.has(opts,"compound")?opts.compound:false;this._label=undefined;this._defaultNodeLabelFn=_.constant(undefined);this._defaultEdgeLabelFn=_.constant(undefined);this._nodes={};if(this._isCompound){this._parent={};this._children={};this._children[GRAPH_NODE]={}}this._in={};this._preds={};this._out={};this._sucs={};this._edgeObjs={};this._edgeLabels={}}Graph.prototype._nodeCount=0;Graph.prototype._edgeCount=0;Graph.prototype.isDirected=function(){return this._isDirected};Graph.prototype.isMultigraph=function(){return this._isMultigraph};Graph.prototype.isCompound=function(){return this._isCompound};Graph.prototype.setGraph=function(label){this._label=label;return this};Graph.prototype.graph=function(){return this._label};Graph.prototype.setDefaultNodeLabel=function(newDefault){if(!_.isFunction(newDefault)){newDefault=_.constant(newDefault)}this._defaultNodeLabelFn=newDefault;return this};Graph.prototype.nodeCount=function(){return this._nodeCount};Graph.prototype.nodes=function(){return _.keys(this._nodes)};Graph.prototype.sources=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._in[v])},this)};Graph.prototype.sinks=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._out[v])},this)};Graph.prototype.setNodes=function(vs,value){var args=arguments;_.each(vs,function(v){if(args.length>1){this.setNode(v,value)}else{this.setNode(v)}},this);return this};Graph.prototype.setNode=function(v,value){if(_.has(this._nodes,v)){if(arguments.length>1){this._nodes[v]=value}return this}this._nodes[v]=arguments.length>1?value:this._defaultNodeLabelFn(v);if(this._isCompound){this._parent[v]=GRAPH_NODE;this._children[v]={};this._children[GRAPH_NODE][v]=true}this._in[v]={};this._preds[v]={};this._out[v]={};this._sucs[v]={};++this._nodeCount;return this};Graph.prototype.node=function(v){return this._nodes[v]};Graph.prototype.hasNode=function(v){return _.has(this._nodes,v)};Graph.prototype.removeNode=function(v){var self=this;if(_.has(this._nodes,v)){var removeEdge=function(e){self.removeEdge(self._edgeObjs[e])};delete this._nodes[v];if(this._isCompound){this._removeFromParentsChildList(v);delete this._parent[v];_.each(this.children(v),function(child){this.setParent(child)},this);delete this._children[v]}_.each(_.keys(this._in[v]),removeEdge);delete this._in[v];delete this._preds[v];_.each(_.keys(this._out[v]),removeEdge);delete this._out[v];delete this._sucs[v];--this._nodeCount}return this};Graph.prototype.setParent=function(v,parent){if(!this._isCompound){throw new Error("Cannot set parent in a non-compound graph")}if(_.isUndefined(parent)){parent=GRAPH_NODE}else{for(var ancestor=parent;!_.isUndefined(ancestor);ancestor=this.parent(ancestor)){if(ancestor===v){throw new Error("Setting "+parent+" as parent of "+v+" would create create a cycle")}}this.setNode(parent)}this.setNode(v);this._removeFromParentsChildList(v);this._parent[v]=parent;this._children[parent][v]=true;return this};Graph.prototype._removeFromParentsChildList=function(v){delete this._children[this._parent[v]][v]};Graph.prototype.parent=function(v){if(this._isCompound){var parent=this._parent[v];if(parent!==GRAPH_NODE){return parent}}};Graph.prototype.children=function(v){if(_.isUndefined(v)){v=GRAPH_NODE}if(this._isCompound){var children=this._children[v];if(children){return _.keys(children)}}else if(v===GRAPH_NODE){return this.nodes()}else if(this.hasNode(v)){return[]}};Graph.prototype.predecessors=function(v){var predsV=this._preds[v];if(predsV){return _.keys(predsV)}};Graph.prototype.successors=function(v){var sucsV=this._sucs[v];if(sucsV){return _.keys(sucsV)}};Graph.prototype.neighbors=function(v){var preds=this.predecessors(v);if(preds){return _.union(preds,this.successors(v))}};Graph.prototype.setDefaultEdgeLabel=function(newDefault){if(!_.isFunction(newDefault)){newDefault=_.constant(newDefault)}this._defaultEdgeLabelFn=newDefault;return this};Graph.prototype.edgeCount=function(){return this._edgeCount};Graph.prototype.edges=function(){return _.values(this._edgeObjs)};Graph.prototype.setPath=function(vs,value){var self=this,args=arguments;_.reduce(vs,function(v,w){if(args.length>1){self.setEdge(v,w,value)}else{self.setEdge(v,w)}return w});return this};Graph.prototype.setEdge=function(){var v,w,name,value,valueSpecified=false;if(_.isPlainObject(arguments[0])){v=arguments[0].v;w=arguments[0].w;name=arguments[0].name;if(arguments.length===2){value=arguments[1];valueSpecified=true}}else{v=arguments[0];w=arguments[1];name=arguments[3];if(arguments.length>2){value=arguments[2];valueSpecified=true}}v=""+v;w=""+w;if(!_.isUndefined(name)){name=""+name}var e=edgeArgsToId(this._isDirected,v,w,name);if(_.has(this._edgeLabels,e)){if(valueSpecified){this._edgeLabels[e]=value}return this}if(!_.isUndefined(name)&&!this._isMultigraph){throw new Error("Cannot set a named edge when isMultigraph = false")}this.setNode(v);this.setNode(w);this._edgeLabels[e]=valueSpecified?value:this._defaultEdgeLabelFn(v,w,name);var edgeObj=edgeArgsToObj(this._isDirected,v,w,name);v=edgeObj.v;w=edgeObj.w;Object.freeze(edgeObj);this._edgeObjs[e]=edgeObj;incrementOrInitEntry(this._preds[w],v);incrementOrInitEntry(this._sucs[v],w);this._in[w][e]=edgeObj;this._out[v][e]=edgeObj;this._edgeCount++;return this};Graph.prototype.edge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name);return this._edgeLabels[e]};Graph.prototype.hasEdge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name);return _.has(this._edgeLabels,e)};Graph.prototype.removeEdge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name),edge=this._edgeObjs[e];if(edge){v=edge.v;w=edge.w;delete this._edgeLabels[e];delete this._edgeObjs[e];decrementOrRemoveEntry(this._preds[w],v);decrementOrRemoveEntry(this._sucs[v],w);delete this._in[w][e];delete this._out[v][e];this._edgeCount--}return this};Graph.prototype.inEdges=function(v,u){var inV=this._in[v];if(inV){var edges=_.values(inV);if(!u){return edges}return _.filter(edges,function(edge){return edge.v===u})}};Graph.prototype.outEdges=function(v,w){var outV=this._out[v];if(outV){var edges=_.values(outV);if(!w){return edges}return _.filter(edges,function(edge){return edge.w===w})}};Graph.prototype.nodeEdges=function(v,w){var inEdges=this.inEdges(v,w);if(inEdges){return inEdges.concat(this.outEdges(v,w))}};function incrementOrInitEntry(map,k){if(_.has(map,k)){map[k]++}else{map[k]=1}}function decrementOrRemoveEntry(map,k){if(!--map[k]){delete map[k]}}function edgeArgsToId(isDirected,v,w,name){if(!isDirected&&v>w){var tmp=v;v=w;w=tmp}return v+EDGE_KEY_DELIM+w+EDGE_KEY_DELIM+(_.isUndefined(name)?DEFAULT_EDGE_NAME:name)}function edgeArgsToObj(isDirected,v,w,name){if(!isDirected&&v>w){var tmp=v;v=w;w=tmp}var edgeObj={v:v,w:w};if(name){edgeObj.name=name}return edgeObj}function edgeObjToId(isDirected,edgeObj){return edgeArgsToId(isDirected,edgeObj.v,edgeObj.w,edgeObj.name)}},{"./lodash":49}],47:[function(require,module,exports){module.exports={Graph:require("./graph"),version:require("./version")}},{"./graph":46,"./version":50}],48:[function(require,module,exports){var _=require("./lodash"),Graph=require("./graph");module.exports={write:write,read:read};function write(g){var json={options:{directed:g.isDirected(),multigraph:g.isMultigraph(),compound:g.isCompound()},nodes:writeNodes(g),edges:writeEdges(g)};if(!_.isUndefined(g.graph())){json.value=_.clone(g.graph())}return json}function writeNodes(g){return _.map(g.nodes(),function(v){var nodeValue=g.node(v),parent=g.parent(v),node={v:v};
-if(!_.isUndefined(nodeValue)){node.value=nodeValue}if(!_.isUndefined(parent)){node.parent=parent}return node})}function writeEdges(g){return _.map(g.edges(),function(e){var edgeValue=g.edge(e),edge={v:e.v,w:e.w};if(!_.isUndefined(e.name)){edge.name=e.name}if(!_.isUndefined(edgeValue)){edge.value=edgeValue}return edge})}function read(json){var g=new Graph(json.options).setGraph(json.value);_.each(json.nodes,function(entry){g.setNode(entry.v,entry.value);if(entry.parent){g.setParent(entry.v,entry.parent)}});_.each(json.edges,function(entry){g.setEdge({v:entry.v,w:entry.w,name:entry.name},entry.value)});return g}},{"./graph":46,"./lodash":49}],49:[function(require,module,exports){module.exports=require(10)},{"/Users/cpettitt/projects/dagre/lib/lodash.js":10,lodash:51}],50:[function(require,module,exports){module.exports="1.0.1"},{}],51:[function(require,module,exports){(function(global){(function(){var undefined;var arrayPool=[],objectPool=[];var idCounter=0;var keyPrefix=+new Date+"";var largeArraySize=75;var maxPoolSize=40;var whitespace=" 	\f "+"\n\r\u2028\u2029"+" ᠎             　";var reEmptyStringLeading=/\b__p \+= '';/g,reEmptyStringMiddle=/\b(__p \+=) '' \+/g,reEmptyStringTrailing=/(__e\(.*?\)|\b__t\)) \+\n'';/g;var reEsTemplate=/\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;var reFlags=/\w*$/;var reFuncName=/^\s*function[ \n\r\t]+\w/;var reInterpolate=/<%=([\s\S]+?)%>/g;var reLeadingSpacesAndZeros=RegExp("^["+whitespace+"]*0+(?=.$)");var reNoMatch=/($^)/;var reThis=/\bthis\b/;var reUnescapedString=/['\n\r\t\u2028\u2029\\]/g;var contextProps=["Array","Boolean","Date","Function","Math","Number","Object","RegExp","String","_","attachEvent","clearTimeout","isFinite","isNaN","parseInt","setTimeout"];var templateCounter=0;var argsClass="[object Arguments]",arrayClass="[object Array]",boolClass="[object Boolean]",dateClass="[object Date]",funcClass="[object Function]",numberClass="[object Number]",objectClass="[object Object]",regexpClass="[object RegExp]",stringClass="[object String]";var cloneableClasses={};cloneableClasses[funcClass]=false;cloneableClasses[argsClass]=cloneableClasses[arrayClass]=cloneableClasses[boolClass]=cloneableClasses[dateClass]=cloneableClasses[numberClass]=cloneableClasses[objectClass]=cloneableClasses[regexpClass]=cloneableClasses[stringClass]=true;var debounceOptions={leading:false,maxWait:0,trailing:false};var descriptor={configurable:false,enumerable:false,value:null,writable:false};var objectTypes={"boolean":false,"function":true,object:true,number:false,string:false,undefined:false};var stringEscapes={"\\":"\\","'":"'","\n":"n","\r":"r","	":"t","\u2028":"u2028","\u2029":"u2029"};var root=objectTypes[typeof window]&&window||this;var freeExports=objectTypes[typeof exports]&&exports&&!exports.nodeType&&exports;var freeModule=objectTypes[typeof module]&&module&&!module.nodeType&&module;var moduleExports=freeModule&&freeModule.exports===freeExports&&freeExports;var freeGlobal=objectTypes[typeof global]&&global;if(freeGlobal&&(freeGlobal.global===freeGlobal||freeGlobal.window===freeGlobal)){root=freeGlobal}function baseIndexOf(array,value,fromIndex){var index=(fromIndex||0)-1,length=array?array.length:0;while(++index<length){if(array[index]===value){return index}}return-1}function cacheIndexOf(cache,value){var type=typeof value;cache=cache.cache;if(type=="boolean"||value==null){return cache[value]?0:-1}if(type!="number"&&type!="string"){type="object"}var key=type=="number"?value:keyPrefix+value;cache=(cache=cache[type])&&cache[key];return type=="object"?cache&&baseIndexOf(cache,value)>-1?0:-1:cache?0:-1}function cachePush(value){var cache=this.cache,type=typeof value;if(type=="boolean"||value==null){cache[value]=true}else{if(type!="number"&&type!="string"){type="object"}var key=type=="number"?value:keyPrefix+value,typeCache=cache[type]||(cache[type]={});if(type=="object"){(typeCache[key]||(typeCache[key]=[])).push(value)}else{typeCache[key]=true}}}function charAtCallback(value){return value.charCodeAt(0)}function compareAscending(a,b){var ac=a.criteria,bc=b.criteria,index=-1,length=ac.length;while(++index<length){var value=ac[index],other=bc[index];if(value!==other){if(value>other||typeof value=="undefined"){return 1}if(value<other||typeof other=="undefined"){return-1}}}return a.index-b.index}function createCache(array){var index=-1,length=array.length,first=array[0],mid=array[length/2|0],last=array[length-1];if(first&&typeof first=="object"&&mid&&typeof mid=="object"&&last&&typeof last=="object"){return false}var cache=getObject();cache["false"]=cache["null"]=cache["true"]=cache["undefined"]=false;var result=getObject();result.array=array;result.cache=cache;result.push=cachePush;while(++index<length){result.push(array[index])}return result}function escapeStringChar(match){return"\\"+stringEscapes[match]}function getArray(){return arrayPool.pop()||[]}function getObject(){return objectPool.pop()||{array:null,cache:null,criteria:null,"false":false,index:0,"null":false,number:null,object:null,push:null,string:null,"true":false,undefined:false,value:null}}function releaseArray(array){array.length=0;if(arrayPool.length<maxPoolSize){arrayPool.push(array)}}function releaseObject(object){var cache=object.cache;if(cache){releaseObject(cache)}object.array=object.cache=object.criteria=object.object=object.number=object.string=object.value=null;if(objectPool.length<maxPoolSize){objectPool.push(object)}}function slice(array,start,end){start||(start=0);if(typeof end=="undefined"){end=array?array.length:0}var index=-1,length=end-start||0,result=Array(length<0?0:length);while(++index<length){result[index]=array[start+index]}return result}function runInContext(context){context=context?_.defaults(root.Object(),context,_.pick(root,contextProps)):root;var Array=context.Array,Boolean=context.Boolean,Date=context.Date,Function=context.Function,Math=context.Math,Number=context.Number,Object=context.Object,RegExp=context.RegExp,String=context.String,TypeError=context.TypeError;var arrayRef=[];var objectProto=Object.prototype;var oldDash=context._;var toString=objectProto.toString;var reNative=RegExp("^"+String(toString).replace(/[.*+?^${}()|[\]\\]/g,"\\$&").replace(/toString| for [^\]]+/g,".*?")+"$");var ceil=Math.ceil,clearTimeout=context.clearTimeout,floor=Math.floor,fnToString=Function.prototype.toString,getPrototypeOf=isNative(getPrototypeOf=Object.getPrototypeOf)&&getPrototypeOf,hasOwnProperty=objectProto.hasOwnProperty,push=arrayRef.push,setTimeout=context.setTimeout,splice=arrayRef.splice,unshift=arrayRef.unshift;var defineProperty=function(){try{var o={},func=isNative(func=Object.defineProperty)&&func,result=func(o,o,o)&&func}catch(e){}return result}();var nativeCreate=isNative(nativeCreate=Object.create)&&nativeCreate,nativeIsArray=isNative(nativeIsArray=Array.isArray)&&nativeIsArray,nativeIsFinite=context.isFinite,nativeIsNaN=context.isNaN,nativeKeys=isNative(nativeKeys=Object.keys)&&nativeKeys,nativeMax=Math.max,nativeMin=Math.min,nativeParseInt=context.parseInt,nativeRandom=Math.random;var ctorByClass={};ctorByClass[arrayClass]=Array;ctorByClass[boolClass]=Boolean;ctorByClass[dateClass]=Date;ctorByClass[funcClass]=Function;ctorByClass[objectClass]=Object;ctorByClass[numberClass]=Number;ctorByClass[regexpClass]=RegExp;ctorByClass[stringClass]=String;function lodash(value){return value&&typeof value=="object"&&!isArray(value)&&hasOwnProperty.call(value,"__wrapped__")?value:new lodashWrapper(value)}function lodashWrapper(value,chainAll){this.__chain__=!!chainAll;this.__wrapped__=value}lodashWrapper.prototype=lodash.prototype;var support=lodash.support={};support.funcDecomp=!isNative(context.WinRTError)&&reThis.test(runInContext);support.funcNames=typeof Function.name=="string";lodash.templateSettings={escape:/<%-([\s\S]+?)%>/g,evaluate:/<%([\s\S]+?)%>/g,interpolate:reInterpolate,variable:"",imports:{_:lodash}};function baseBind(bindData){var func=bindData[0],partialArgs=bindData[2],thisArg=bindData[4];function bound(){if(partialArgs){var args=slice(partialArgs);push.apply(args,arguments)}if(this instanceof bound){var thisBinding=baseCreate(func.prototype),result=func.apply(thisBinding,args||arguments);return isObject(result)?result:thisBinding}return func.apply(thisArg,args||arguments)}setBindData(bound,bindData);return bound}function baseClone(value,isDeep,callback,stackA,stackB){if(callback){var result=callback(value);if(typeof result!="undefined"){return result}}var isObj=isObject(value);if(isObj){var className=toString.call(value);if(!cloneableClasses[className]){return value}var ctor=ctorByClass[className];switch(className){case boolClass:case dateClass:return new ctor(+value);case numberClass:case stringClass:return new ctor(value);case regexpClass:result=ctor(value.source,reFlags.exec(value));result.lastIndex=value.lastIndex;return result}}else{return value}var isArr=isArray(value);if(isDeep){var initedStack=!stackA;stackA||(stackA=getArray());stackB||(stackB=getArray());var length=stackA.length;while(length--){if(stackA[length]==value){return stackB[length]}}result=isArr?ctor(value.length):{}}else{result=isArr?slice(value):assign({},value)}if(isArr){if(hasOwnProperty.call(value,"index")){result.index=value.index}if(hasOwnProperty.call(value,"input")){result.input=value.input}}if(!isDeep){return result}stackA.push(value);stackB.push(result);(isArr?forEach:forOwn)(value,function(objValue,key){result[key]=baseClone(objValue,isDeep,callback,stackA,stackB)});if(initedStack){releaseArray(stackA);releaseArray(stackB)}return result}function baseCreate(prototype,properties){return isObject(prototype)?nativeCreate(prototype):{}}if(!nativeCreate){baseCreate=function(){function Object(){}return function(prototype){if(isObject(prototype)){Object.prototype=prototype;var result=new Object;Object.prototype=null}return result||context.Object()}}()}function baseCreateCallback(func,thisArg,argCount){if(typeof func!="function"){return identity}if(typeof thisArg=="undefined"||!("prototype"in func)){return func}var bindData=func.__bindData__;if(typeof bindData=="undefined"){if(support.funcNames){bindData=!func.name}bindData=bindData||!support.funcDecomp;if(!bindData){var source=fnToString.call(func);if(!support.funcNames){bindData=!reFuncName.test(source)}if(!bindData){bindData=reThis.test(source);setBindData(func,bindData)}}}if(bindData===false||bindData!==true&&bindData[1]&1){return func}switch(argCount){case 1:return function(value){return func.call(thisArg,value)};case 2:return function(a,b){return func.call(thisArg,a,b)};case 3:return function(value,index,collection){return func.call(thisArg,value,index,collection)};case 4:return function(accumulator,value,index,collection){return func.call(thisArg,accumulator,value,index,collection)}}return bind(func,thisArg)}function baseCreateWrapper(bindData){var func=bindData[0],bitmask=bindData[1],partialArgs=bindData[2],partialRightArgs=bindData[3],thisArg=bindData[4],arity=bindData[5];var isBind=bitmask&1,isBindKey=bitmask&2,isCurry=bitmask&4,isCurryBound=bitmask&8,key=func;function bound(){var thisBinding=isBind?thisArg:this;if(partialArgs){var args=slice(partialArgs);push.apply(args,arguments)}if(partialRightArgs||isCurry){args||(args=slice(arguments));if(partialRightArgs){push.apply(args,partialRightArgs)}if(isCurry&&args.length<arity){bitmask|=16&~32;return baseCreateWrapper([func,isCurryBound?bitmask:bitmask&~3,args,null,thisArg,arity])}}args||(args=arguments);if(isBindKey){func=thisBinding[key]}if(this instanceof bound){thisBinding=baseCreate(func.prototype);var result=func.apply(thisBinding,args);return isObject(result)?result:thisBinding}return func.apply(thisBinding,args)}setBindData(bound,bindData);return bound}function baseDifference(array,values){var index=-1,indexOf=getIndexOf(),length=array?array.length:0,isLarge=length>=largeArraySize&&indexOf===baseIndexOf,result=[];if(isLarge){var cache=createCache(values);if(cache){indexOf=cacheIndexOf;values=cache}else{isLarge=false}}while(++index<length){var value=array[index];if(indexOf(values,value)<0){result.push(value)}}if(isLarge){releaseObject(values)}return result}function baseFlatten(array,isShallow,isStrict,fromIndex){var index=(fromIndex||0)-1,length=array?array.length:0,result=[];while(++index<length){var value=array[index];if(value&&typeof value=="object"&&typeof value.length=="number"&&(isArray(value)||isArguments(value))){if(!isShallow){value=baseFlatten(value,isShallow,isStrict)}var valIndex=-1,valLength=value.length,resIndex=result.length;result.length+=valLength;while(++valIndex<valLength){result[resIndex++]=value[valIndex]}}else if(!isStrict){result.push(value)}}return result}function baseIsEqual(a,b,callback,isWhere,stackA,stackB){if(callback){var result=callback(a,b);if(typeof result!="undefined"){return!!result}}if(a===b){return a!==0||1/a==1/b}var type=typeof a,otherType=typeof b;if(a===a&&!(a&&objectTypes[type])&&!(b&&objectTypes[otherType])){return false}if(a==null||b==null){return a===b}var className=toString.call(a),otherClass=toString.call(b);if(className==argsClass){className=objectClass}if(otherClass==argsClass){otherClass=objectClass}if(className!=otherClass){return false}switch(className){case boolClass:case dateClass:return+a==+b;case numberClass:return a!=+a?b!=+b:a==0?1/a==1/b:a==+b;case regexpClass:case stringClass:return a==String(b)}var isArr=className==arrayClass;if(!isArr){var aWrapped=hasOwnProperty.call(a,"__wrapped__"),bWrapped=hasOwnProperty.call(b,"__wrapped__");if(aWrapped||bWrapped){return baseIsEqual(aWrapped?a.__wrapped__:a,bWrapped?b.__wrapped__:b,callback,isWhere,stackA,stackB)}if(className!=objectClass){return false}var ctorA=a.constructor,ctorB=b.constructor;if(ctorA!=ctorB&&!(isFunction(ctorA)&&ctorA instanceof ctorA&&isFunction(ctorB)&&ctorB instanceof ctorB)&&("constructor"in a&&"constructor"in b)){return false}}var initedStack=!stackA;stackA||(stackA=getArray());stackB||(stackB=getArray());var length=stackA.length;while(length--){if(stackA[length]==a){return stackB[length]==b}}var size=0;result=true;stackA.push(a);stackB.push(b);if(isArr){length=a.length;size=b.length;result=size==length;if(result||isWhere){while(size--){var index=length,value=b[size];if(isWhere){while(index--){if(result=baseIsEqual(a[index],value,callback,isWhere,stackA,stackB)){break}}}else if(!(result=baseIsEqual(a[size],value,callback,isWhere,stackA,stackB))){break}}}}else{forIn(b,function(value,key,b){if(hasOwnProperty.call(b,key)){size++;return result=hasOwnProperty.call(a,key)&&baseIsEqual(a[key],value,callback,isWhere,stackA,stackB)}});if(result&&!isWhere){forIn(a,function(value,key,a){if(hasOwnProperty.call(a,key)){return result=--size>-1}})}}stackA.pop();stackB.pop();if(initedStack){releaseArray(stackA);releaseArray(stackB)}return result}function baseMerge(object,source,callback,stackA,stackB){(isArray(source)?forEach:forOwn)(source,function(source,key){var found,isArr,result=source,value=object[key];if(source&&((isArr=isArray(source))||isPlainObject(source))){var stackLength=stackA.length;while(stackLength--){if(found=stackA[stackLength]==source){value=stackB[stackLength];break}}if(!found){var isShallow;if(callback){result=callback(value,source);if(isShallow=typeof result!="undefined"){value=result}}if(!isShallow){value=isArr?isArray(value)?value:[]:isPlainObject(value)?value:{}}stackA.push(source);stackB.push(value);if(!isShallow){baseMerge(value,source,callback,stackA,stackB)}}}else{if(callback){result=callback(value,source);if(typeof result=="undefined"){result=source}}if(typeof result!="undefined"){value=result}}object[key]=value})}function baseRandom(min,max){return min+floor(nativeRandom()*(max-min+1))}function baseUniq(array,isSorted,callback){var index=-1,indexOf=getIndexOf(),length=array?array.length:0,result=[];var isLarge=!isSorted&&length>=largeArraySize&&indexOf===baseIndexOf,seen=callback||isLarge?getArray():result;if(isLarge){var cache=createCache(seen);indexOf=cacheIndexOf;seen=cache}while(++index<length){var value=array[index],computed=callback?callback(value,index,array):value;if(isSorted?!index||seen[seen.length-1]!==computed:indexOf(seen,computed)<0){if(callback||isLarge){seen.push(computed)}result.push(value)}}if(isLarge){releaseArray(seen.array);releaseObject(seen)}else if(callback){releaseArray(seen)}return result}function createAggregator(setter){return function(collection,callback,thisArg){var result={};callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];setter(result,value,callback(value,index,collection),collection)}}else{forOwn(collection,function(value,key,collection){setter(result,value,callback(value,key,collection),collection)})}return result}}function createWrapper(func,bitmask,partialArgs,partialRightArgs,thisArg,arity){var isBind=bitmask&1,isBindKey=bitmask&2,isCurry=bitmask&4,isCurryBound=bitmask&8,isPartial=bitmask&16,isPartialRight=bitmask&32;if(!isBindKey&&!isFunction(func)){throw new TypeError}if(isPartial&&!partialArgs.length){bitmask&=~16;isPartial=partialArgs=false}if(isPartialRight&&!partialRightArgs.length){bitmask&=~32;isPartialRight=partialRightArgs=false}var bindData=func&&func.__bindData__;if(bindData&&bindData!==true){bindData=slice(bindData);if(bindData[2]){bindData[2]=slice(bindData[2])}if(bindData[3]){bindData[3]=slice(bindData[3])}if(isBind&&!(bindData[1]&1)){bindData[4]=thisArg}if(!isBind&&bindData[1]&1){bitmask|=8}if(isCurry&&!(bindData[1]&4)){bindData[5]=arity}if(isPartial){push.apply(bindData[2]||(bindData[2]=[]),partialArgs)}if(isPartialRight){unshift.apply(bindData[3]||(bindData[3]=[]),partialRightArgs)}bindData[1]|=bitmask;return createWrapper.apply(null,bindData)}var creater=bitmask==1||bitmask===17?baseBind:baseCreateWrapper;return creater([func,bitmask,partialArgs,partialRightArgs,thisArg,arity])}function escapeHtmlChar(match){return htmlEscapes[match]}function getIndexOf(){var result=(result=lodash.indexOf)===indexOf?baseIndexOf:result;return result}function isNative(value){return typeof value=="function"&&reNative.test(value)}var setBindData=!defineProperty?noop:function(func,value){descriptor.value=value;defineProperty(func,"__bindData__",descriptor)};function shimIsPlainObject(value){var ctor,result;if(!(value&&toString.call(value)==objectClass)||(ctor=value.constructor,isFunction(ctor)&&!(ctor instanceof ctor))){return false}forIn(value,function(value,key){result=key});return typeof result=="undefined"||hasOwnProperty.call(value,result)}function unescapeHtmlChar(match){return htmlUnescapes[match]}function isArguments(value){return value&&typeof value=="object"&&typeof value.length=="number"&&toString.call(value)==argsClass||false}var isArray=nativeIsArray||function(value){return value&&typeof value=="object"&&typeof value.length=="number"&&toString.call(value)==arrayClass||false};var shimKeys=function(object){var index,iterable=object,result=[];if(!iterable)return result;if(!objectTypes[typeof object])return result;for(index in iterable){if(hasOwnProperty.call(iterable,index)){result.push(index)}}return result};var keys=!nativeKeys?shimKeys:function(object){if(!isObject(object)){return[]}return nativeKeys(object)};var htmlEscapes={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;"};var htmlUnescapes=invert(htmlEscapes);var reEscapedHtml=RegExp("("+keys(htmlUnescapes).join("|")+")","g"),reUnescapedHtml=RegExp("["+keys(htmlEscapes).join("")+"]","g");var assign=function(object,source,guard){var index,iterable=object,result=iterable;if(!iterable)return result;var args=arguments,argsIndex=0,argsLength=typeof guard=="number"?2:args.length;if(argsLength>3&&typeof args[argsLength-2]=="function"){var callback=baseCreateCallback(args[--argsLength-1],args[argsLength--],2)}else if(argsLength>2&&typeof args[argsLength-1]=="function"){callback=args[--argsLength]}while(++argsIndex<argsLength){iterable=args[argsIndex];if(iterable&&objectTypes[typeof iterable]){var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];result[index]=callback?callback(result[index],iterable[index]):iterable[index]}}}return result};function clone(value,isDeep,callback,thisArg){if(typeof isDeep!="boolean"&&isDeep!=null){thisArg=callback;callback=isDeep;isDeep=false}return baseClone(value,isDeep,typeof callback=="function"&&baseCreateCallback(callback,thisArg,1))}function cloneDeep(value,callback,thisArg){return baseClone(value,true,typeof callback=="function"&&baseCreateCallback(callback,thisArg,1))}function create(prototype,properties){var result=baseCreate(prototype);return properties?assign(result,properties):result}var defaults=function(object,source,guard){var index,iterable=object,result=iterable;if(!iterable)return result;var args=arguments,argsIndex=0,argsLength=typeof guard=="number"?2:args.length;while(++argsIndex<argsLength){iterable=args[argsIndex];if(iterable&&objectTypes[typeof iterable]){var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];if(typeof result[index]=="undefined")result[index]=iterable[index]}}}return result};function findKey(object,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forOwn(object,function(value,key,object){if(callback(value,key,object)){result=key;return false}});return result}function findLastKey(object,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forOwnRight(object,function(value,key,object){if(callback(value,key,object)){result=key;return false}});return result}var forIn=function(collection,callback,thisArg){var index,iterable=collection,result=iterable;if(!iterable)return result;if(!objectTypes[typeof iterable])return result;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);for(index in iterable){if(callback(iterable[index],index,collection)===false)return result}return result};function forInRight(object,callback,thisArg){var pairs=[];forIn(object,function(value,key){pairs.push(key,value)});var length=pairs.length;callback=baseCreateCallback(callback,thisArg,3);while(length--){if(callback(pairs[length--],pairs[length],object)===false){break}}return object}var forOwn=function(collection,callback,thisArg){var index,iterable=collection,result=iterable;if(!iterable)return result;if(!objectTypes[typeof iterable])return result;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];if(callback(iterable[index],index,collection)===false)return result}return result};function forOwnRight(object,callback,thisArg){var props=keys(object),length=props.length;callback=baseCreateCallback(callback,thisArg,3);while(length--){var key=props[length];if(callback(object[key],key,object)===false){break}}return object}function functions(object){var result=[];forIn(object,function(value,key){if(isFunction(value)){result.push(key)}});return result.sort()}function has(object,key){return object?hasOwnProperty.call(object,key):false}function invert(object){var index=-1,props=keys(object),length=props.length,result={};while(++index<length){var key=props[index];result[object[key]]=key}return result}function isBoolean(value){return value===true||value===false||value&&typeof value=="object"&&toString.call(value)==boolClass||false}function isDate(value){return value&&typeof value=="object"&&toString.call(value)==dateClass||false}function isElement(value){return value&&value.nodeType===1||false}function isEmpty(value){var result=true;if(!value){return result}var className=toString.call(value),length=value.length;if(className==arrayClass||className==stringClass||className==argsClass||className==objectClass&&typeof length=="number"&&isFunction(value.splice)){return!length}forOwn(value,function(){return result=false});return result}function isEqual(a,b,callback,thisArg){return baseIsEqual(a,b,typeof callback=="function"&&baseCreateCallback(callback,thisArg,2))}function isFinite(value){return nativeIsFinite(value)&&!nativeIsNaN(parseFloat(value))}function isFunction(value){return typeof value=="function"}function isObject(value){return!!(value&&objectTypes[typeof value])}function isNaN(value){return isNumber(value)&&value!=+value}function isNull(value){return value===null}function isNumber(value){return typeof value=="number"||value&&typeof value=="object"&&toString.call(value)==numberClass||false}var isPlainObject=!getPrototypeOf?shimIsPlainObject:function(value){if(!(value&&toString.call(value)==objectClass)){return false}var valueOf=value.valueOf,objProto=isNative(valueOf)&&(objProto=getPrototypeOf(valueOf))&&getPrototypeOf(objProto);return objProto?value==objProto||getPrototypeOf(value)==objProto:shimIsPlainObject(value)};function isRegExp(value){return value&&typeof value=="object"&&toString.call(value)==regexpClass||false}function isString(value){return typeof value=="string"||value&&typeof value=="object"&&toString.call(value)==stringClass||false}function isUndefined(value){return typeof value=="undefined"}function mapValues(object,callback,thisArg){var result={};callback=lodash.createCallback(callback,thisArg,3);forOwn(object,function(value,key,object){result[key]=callback(value,key,object)});return result}function merge(object){var args=arguments,length=2;if(!isObject(object)){return object}if(typeof args[2]!="number"){length=args.length}if(length>3&&typeof args[length-2]=="function"){var callback=baseCreateCallback(args[--length-1],args[length--],2)}else if(length>2&&typeof args[length-1]=="function"){callback=args[--length]}var sources=slice(arguments,1,length),index=-1,stackA=getArray(),stackB=getArray();while(++index<length){baseMerge(object,sources[index],callback,stackA,stackB)}releaseArray(stackA);releaseArray(stackB);return object}function omit(object,callback,thisArg){var result={};if(typeof callback!="function"){var props=[];forIn(object,function(value,key){props.push(key)});props=baseDifference(props,baseFlatten(arguments,true,false,1));var index=-1,length=props.length;while(++index<length){var key=props[index];result[key]=object[key]}}else{callback=lodash.createCallback(callback,thisArg,3);forIn(object,function(value,key,object){if(!callback(value,key,object)){result[key]=value}})}return result}function pairs(object){var index=-1,props=keys(object),length=props.length,result=Array(length);while(++index<length){var key=props[index];result[index]=[key,object[key]]}return result}function pick(object,callback,thisArg){var result={};if(typeof callback!="function"){var index=-1,props=baseFlatten(arguments,true,false,1),length=isObject(object)?props.length:0;while(++index<length){var key=props[index];if(key in object){result[key]=object[key]}}}else{callback=lodash.createCallback(callback,thisArg,3);forIn(object,function(value,key,object){if(callback(value,key,object)){result[key]=value}})}return result}function transform(object,callback,accumulator,thisArg){var isArr=isArray(object);if(accumulator==null){if(isArr){accumulator=[]}else{var ctor=object&&object.constructor,proto=ctor&&ctor.prototype;accumulator=baseCreate(proto)}}if(callback){callback=lodash.createCallback(callback,thisArg,4);(isArr?forEach:forOwn)(object,function(value,index,object){return callback(accumulator,value,index,object)})}return accumulator}function values(object){var index=-1,props=keys(object),length=props.length,result=Array(length);while(++index<length){result[index]=object[props[index]]}return result}function at(collection){var args=arguments,index=-1,props=baseFlatten(args,true,false,1),length=args[2]&&args[2][args[1]]===collection?1:props.length,result=Array(length);while(++index<length){result[index]=collection[props[index]]}return result}function contains(collection,target,fromIndex){var index=-1,indexOf=getIndexOf(),length=collection?collection.length:0,result=false;fromIndex=(fromIndex<0?nativeMax(0,length+fromIndex):fromIndex)||0;if(isArray(collection)){result=indexOf(collection,target,fromIndex)>-1}else if(typeof length=="number"){result=(isString(collection)?collection.indexOf(target,fromIndex):indexOf(collection,target,fromIndex))>-1}else{forOwn(collection,function(value){if(++index>=fromIndex){return!(result=value===target)}})}return result}var countBy=createAggregator(function(result,value,key){hasOwnProperty.call(result,key)?result[key]++:result[key]=1});function every(collection,callback,thisArg){var result=true;callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){if(!(result=!!callback(collection[index],index,collection))){break}}}else{forOwn(collection,function(value,index,collection){return result=!!callback(value,index,collection)})}return result}function filter(collection,callback,thisArg){var result=[];callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];if(callback(value,index,collection)){result.push(value)}}}else{forOwn(collection,function(value,index,collection){if(callback(value,index,collection)){result.push(value)}})}return result}function find(collection,callback,thisArg){callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];if(callback(value,index,collection)){return value}}}else{var result;forOwn(collection,function(value,index,collection){if(callback(value,index,collection)){result=value;return false}});return result}}function findLast(collection,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forEachRight(collection,function(value,index,collection){if(callback(value,index,collection)){result=value;return false}});return result}function forEach(collection,callback,thisArg){var index=-1,length=collection?collection.length:0;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);if(typeof length=="number"){while(++index<length){if(callback(collection[index],index,collection)===false){break}}}else{forOwn(collection,callback)}return collection}function forEachRight(collection,callback,thisArg){var length=collection?collection.length:0;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);if(typeof length=="number"){while(length--){if(callback(collection[length],length,collection)===false){break}}}else{var props=keys(collection);length=props.length;forOwn(collection,function(value,key,collection){key=props?props[--length]:--length;return callback(collection[key],key,collection)})}return collection}var groupBy=createAggregator(function(result,value,key){(hasOwnProperty.call(result,key)?result[key]:result[key]=[]).push(value)});var indexBy=createAggregator(function(result,value,key){result[key]=value});function invoke(collection,methodName){var args=slice(arguments,2),index=-1,isFunc=typeof methodName=="function",length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);forEach(collection,function(value){result[++index]=(isFunc?methodName:value[methodName]).apply(value,args)});return result}function map(collection,callback,thisArg){var index=-1,length=collection?collection.length:0;callback=lodash.createCallback(callback,thisArg,3);if(typeof length=="number"){var result=Array(length);while(++index<length){result[index]=callback(collection[index],index,collection)}}else{result=[];forOwn(collection,function(value,key,collection){result[++index]=callback(value,key,collection)})}return result}function max(collection,callback,thisArg){var computed=-Infinity,result=computed;if(typeof callback!="function"&&thisArg&&thisArg[callback]===collection){callback=null
-}if(callback==null&&isArray(collection)){var index=-1,length=collection.length;while(++index<length){var value=collection[index];if(value>result){result=value}}}else{callback=callback==null&&isString(collection)?charAtCallback:lodash.createCallback(callback,thisArg,3);forEach(collection,function(value,index,collection){var current=callback(value,index,collection);if(current>computed){computed=current;result=value}})}return result}function min(collection,callback,thisArg){var computed=Infinity,result=computed;if(typeof callback!="function"&&thisArg&&thisArg[callback]===collection){callback=null}if(callback==null&&isArray(collection)){var index=-1,length=collection.length;while(++index<length){var value=collection[index];if(value<result){result=value}}}else{callback=callback==null&&isString(collection)?charAtCallback:lodash.createCallback(callback,thisArg,3);forEach(collection,function(value,index,collection){var current=callback(value,index,collection);if(current<computed){computed=current;result=value}})}return result}var pluck=map;function reduce(collection,callback,accumulator,thisArg){if(!collection)return accumulator;var noaccum=arguments.length<3;callback=lodash.createCallback(callback,thisArg,4);var index=-1,length=collection.length;if(typeof length=="number"){if(noaccum){accumulator=collection[++index]}while(++index<length){accumulator=callback(accumulator,collection[index],index,collection)}}else{forOwn(collection,function(value,index,collection){accumulator=noaccum?(noaccum=false,value):callback(accumulator,value,index,collection)})}return accumulator}function reduceRight(collection,callback,accumulator,thisArg){var noaccum=arguments.length<3;callback=lodash.createCallback(callback,thisArg,4);forEachRight(collection,function(value,index,collection){accumulator=noaccum?(noaccum=false,value):callback(accumulator,value,index,collection)});return accumulator}function reject(collection,callback,thisArg){callback=lodash.createCallback(callback,thisArg,3);return filter(collection,function(value,index,collection){return!callback(value,index,collection)})}function sample(collection,n,guard){if(collection&&typeof collection.length!="number"){collection=values(collection)}if(n==null||guard){return collection?collection[baseRandom(0,collection.length-1)]:undefined}var result=shuffle(collection);result.length=nativeMin(nativeMax(0,n),result.length);return result}function shuffle(collection){var index=-1,length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);forEach(collection,function(value){var rand=baseRandom(0,++index);result[index]=result[rand];result[rand]=value});return result}function size(collection){var length=collection?collection.length:0;return typeof length=="number"?length:keys(collection).length}function some(collection,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){if(result=callback(collection[index],index,collection)){break}}}else{forOwn(collection,function(value,index,collection){return!(result=callback(value,index,collection))})}return!!result}function sortBy(collection,callback,thisArg){var index=-1,isArr=isArray(callback),length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);if(!isArr){callback=lodash.createCallback(callback,thisArg,3)}forEach(collection,function(value,key,collection){var object=result[++index]=getObject();if(isArr){object.criteria=map(callback,function(key){return value[key]})}else{(object.criteria=getArray())[0]=callback(value,key,collection)}object.index=index;object.value=value});length=result.length;result.sort(compareAscending);while(length--){var object=result[length];result[length]=object.value;if(!isArr){releaseArray(object.criteria)}releaseObject(object)}return result}function toArray(collection){if(collection&&typeof collection.length=="number"){return slice(collection)}return values(collection)}var where=filter;function compact(array){var index=-1,length=array?array.length:0,result=[];while(++index<length){var value=array[index];if(value){result.push(value)}}return result}function difference(array){return baseDifference(array,baseFlatten(arguments,true,true,1))}function findIndex(array,callback,thisArg){var index=-1,length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(++index<length){if(callback(array[index],index,array)){return index}}return-1}function findLastIndex(array,callback,thisArg){var length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(length--){if(callback(array[length],length,array)){return length}}return-1}function first(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=-1;callback=lodash.createCallback(callback,thisArg,3);while(++index<length&&callback(array[index],index,array)){n++}}else{n=callback;if(n==null||thisArg){return array?array[0]:undefined}}return slice(array,0,nativeMin(nativeMax(0,n),length))}function flatten(array,isShallow,callback,thisArg){if(typeof isShallow!="boolean"&&isShallow!=null){thisArg=callback;callback=typeof isShallow!="function"&&thisArg&&thisArg[isShallow]===array?null:isShallow;isShallow=false}if(callback!=null){array=map(array,callback,thisArg)}return baseFlatten(array,isShallow)}function indexOf(array,value,fromIndex){if(typeof fromIndex=="number"){var length=array?array.length:0;fromIndex=fromIndex<0?nativeMax(0,length+fromIndex):fromIndex||0}else if(fromIndex){var index=sortedIndex(array,value);return array[index]===value?index:-1}return baseIndexOf(array,value,fromIndex)}function initial(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=length;callback=lodash.createCallback(callback,thisArg,3);while(index--&&callback(array[index],index,array)){n++}}else{n=callback==null||thisArg?1:callback||n}return slice(array,0,nativeMin(nativeMax(0,length-n),length))}function intersection(){var args=[],argsIndex=-1,argsLength=arguments.length,caches=getArray(),indexOf=getIndexOf(),trustIndexOf=indexOf===baseIndexOf,seen=getArray();while(++argsIndex<argsLength){var value=arguments[argsIndex];if(isArray(value)||isArguments(value)){args.push(value);caches.push(trustIndexOf&&value.length>=largeArraySize&&createCache(argsIndex?args[argsIndex]:seen))}}var array=args[0],index=-1,length=array?array.length:0,result=[];outer:while(++index<length){var cache=caches[0];value=array[index];if((cache?cacheIndexOf(cache,value):indexOf(seen,value))<0){argsIndex=argsLength;(cache||seen).push(value);while(--argsIndex){cache=caches[argsIndex];if((cache?cacheIndexOf(cache,value):indexOf(args[argsIndex],value))<0){continue outer}}result.push(value)}}while(argsLength--){cache=caches[argsLength];if(cache){releaseObject(cache)}}releaseArray(caches);releaseArray(seen);return result}function last(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=length;callback=lodash.createCallback(callback,thisArg,3);while(index--&&callback(array[index],index,array)){n++}}else{n=callback;if(n==null||thisArg){return array?array[length-1]:undefined}}return slice(array,nativeMax(0,length-n))}function lastIndexOf(array,value,fromIndex){var index=array?array.length:0;if(typeof fromIndex=="number"){index=(fromIndex<0?nativeMax(0,index+fromIndex):nativeMin(fromIndex,index-1))+1}while(index--){if(array[index]===value){return index}}return-1}function pull(array){var args=arguments,argsIndex=0,argsLength=args.length,length=array?array.length:0;while(++argsIndex<argsLength){var index=-1,value=args[argsIndex];while(++index<length){if(array[index]===value){splice.call(array,index--,1);length--}}}return array}function range(start,end,step){start=+start||0;step=typeof step=="number"?step:+step||1;if(end==null){end=start;start=0}var index=-1,length=nativeMax(0,ceil((end-start)/(step||1))),result=Array(length);while(++index<length){result[index]=start;start+=step}return result}function remove(array,callback,thisArg){var index=-1,length=array?array.length:0,result=[];callback=lodash.createCallback(callback,thisArg,3);while(++index<length){var value=array[index];if(callback(value,index,array)){result.push(value);splice.call(array,index--,1);length--}}return result}function rest(array,callback,thisArg){if(typeof callback!="number"&&callback!=null){var n=0,index=-1,length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(++index<length&&callback(array[index],index,array)){n++}}else{n=callback==null||thisArg?1:nativeMax(0,callback)}return slice(array,n)}function sortedIndex(array,value,callback,thisArg){var low=0,high=array?array.length:low;callback=callback?lodash.createCallback(callback,thisArg,1):identity;value=callback(value);while(low<high){var mid=low+high>>>1;callback(array[mid])<value?low=mid+1:high=mid}return low}function union(){return baseUniq(baseFlatten(arguments,true,true))}function uniq(array,isSorted,callback,thisArg){if(typeof isSorted!="boolean"&&isSorted!=null){thisArg=callback;callback=typeof isSorted!="function"&&thisArg&&thisArg[isSorted]===array?null:isSorted;isSorted=false}if(callback!=null){callback=lodash.createCallback(callback,thisArg,3)}return baseUniq(array,isSorted,callback)}function without(array){return baseDifference(array,slice(arguments,1))}function xor(){var index=-1,length=arguments.length;while(++index<length){var array=arguments[index];if(isArray(array)||isArguments(array)){var result=result?baseUniq(baseDifference(result,array).concat(baseDifference(array,result))):array}}return result||[]}function zip(){var array=arguments.length>1?arguments:arguments[0],index=-1,length=array?max(pluck(array,"length")):0,result=Array(length<0?0:length);while(++index<length){result[index]=pluck(array,index)}return result}function zipObject(keys,values){var index=-1,length=keys?keys.length:0,result={};if(!values&&length&&!isArray(keys[0])){values=[]}while(++index<length){var key=keys[index];if(values){result[key]=values[index]}else if(key){result[key[0]]=key[1]}}return result}function after(n,func){if(!isFunction(func)){throw new TypeError}return function(){if(--n<1){return func.apply(this,arguments)}}}function bind(func,thisArg){return arguments.length>2?createWrapper(func,17,slice(arguments,2),null,thisArg):createWrapper(func,1,null,null,thisArg)}function bindAll(object){var funcs=arguments.length>1?baseFlatten(arguments,true,false,1):functions(object),index=-1,length=funcs.length;while(++index<length){var key=funcs[index];object[key]=createWrapper(object[key],1,null,null,object)}return object}function bindKey(object,key){return arguments.length>2?createWrapper(key,19,slice(arguments,2),null,object):createWrapper(key,3,null,null,object)}function compose(){var funcs=arguments,length=funcs.length;while(length--){if(!isFunction(funcs[length])){throw new TypeError}}return function(){var args=arguments,length=funcs.length;while(length--){args=[funcs[length].apply(this,args)]}return args[0]}}function curry(func,arity){arity=typeof arity=="number"?arity:+arity||func.length;return createWrapper(func,4,null,null,null,arity)}function debounce(func,wait,options){var args,maxTimeoutId,result,stamp,thisArg,timeoutId,trailingCall,lastCalled=0,maxWait=false,trailing=true;if(!isFunction(func)){throw new TypeError}wait=nativeMax(0,wait)||0;if(options===true){var leading=true;trailing=false}else if(isObject(options)){leading=options.leading;maxWait="maxWait"in options&&(nativeMax(wait,options.maxWait)||0);trailing="trailing"in options?options.trailing:trailing}var delayed=function(){var remaining=wait-(now()-stamp);if(remaining<=0){if(maxTimeoutId){clearTimeout(maxTimeoutId)}var isCalled=trailingCall;maxTimeoutId=timeoutId=trailingCall=undefined;if(isCalled){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=null}}}else{timeoutId=setTimeout(delayed,remaining)}};var maxDelayed=function(){if(timeoutId){clearTimeout(timeoutId)}maxTimeoutId=timeoutId=trailingCall=undefined;if(trailing||maxWait!==wait){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=null}}};return function(){args=arguments;stamp=now();thisArg=this;trailingCall=trailing&&(timeoutId||!leading);if(maxWait===false){var leadingCall=leading&&!timeoutId}else{if(!maxTimeoutId&&!leading){lastCalled=stamp}var remaining=maxWait-(stamp-lastCalled),isCalled=remaining<=0;if(isCalled){if(maxTimeoutId){maxTimeoutId=clearTimeout(maxTimeoutId)}lastCalled=stamp;result=func.apply(thisArg,args)}else if(!maxTimeoutId){maxTimeoutId=setTimeout(maxDelayed,remaining)}}if(isCalled&&timeoutId){timeoutId=clearTimeout(timeoutId)}else if(!timeoutId&&wait!==maxWait){timeoutId=setTimeout(delayed,wait)}if(leadingCall){isCalled=true;result=func.apply(thisArg,args)}if(isCalled&&!timeoutId&&!maxTimeoutId){args=thisArg=null}return result}}function defer(func){if(!isFunction(func)){throw new TypeError}var args=slice(arguments,1);return setTimeout(function(){func.apply(undefined,args)},1)}function delay(func,wait){if(!isFunction(func)){throw new TypeError}var args=slice(arguments,2);return setTimeout(function(){func.apply(undefined,args)},wait)}function memoize(func,resolver){if(!isFunction(func)){throw new TypeError}var memoized=function(){var cache=memoized.cache,key=resolver?resolver.apply(this,arguments):keyPrefix+arguments[0];return hasOwnProperty.call(cache,key)?cache[key]:cache[key]=func.apply(this,arguments)};memoized.cache={};return memoized}function once(func){var ran,result;if(!isFunction(func)){throw new TypeError}return function(){if(ran){return result}ran=true;result=func.apply(this,arguments);func=null;return result}}function partial(func){return createWrapper(func,16,slice(arguments,1))}function partialRight(func){return createWrapper(func,32,null,slice(arguments,1))}function throttle(func,wait,options){var leading=true,trailing=true;if(!isFunction(func)){throw new TypeError}if(options===false){leading=false}else if(isObject(options)){leading="leading"in options?options.leading:leading;trailing="trailing"in options?options.trailing:trailing}debounceOptions.leading=leading;debounceOptions.maxWait=wait;debounceOptions.trailing=trailing;return debounce(func,wait,debounceOptions)}function wrap(value,wrapper){return createWrapper(wrapper,16,[value])}function constant(value){return function(){return value}}function createCallback(func,thisArg,argCount){var type=typeof func;if(func==null||type=="function"){return baseCreateCallback(func,thisArg,argCount)}if(type!="object"){return property(func)}var props=keys(func),key=props[0],a=func[key];if(props.length==1&&a===a&&!isObject(a)){return function(object){var b=object[key];return a===b&&(a!==0||1/a==1/b)}}return function(object){var length=props.length,result=false;while(length--){if(!(result=baseIsEqual(object[props[length]],func[props[length]],null,true))){break}}return result}}function escape(string){return string==null?"":String(string).replace(reUnescapedHtml,escapeHtmlChar)}function identity(value){return value}function mixin(object,source,options){var chain=true,methodNames=source&&functions(source);if(!source||!options&&!methodNames.length){if(options==null){options=source}ctor=lodashWrapper;source=object;object=lodash;methodNames=functions(source)}if(options===false){chain=false}else if(isObject(options)&&"chain"in options){chain=options.chain}var ctor=object,isFunc=isFunction(ctor);forEach(methodNames,function(methodName){var func=object[methodName]=source[methodName];if(isFunc){ctor.prototype[methodName]=function(){var chainAll=this.__chain__,value=this.__wrapped__,args=[value];push.apply(args,arguments);var result=func.apply(object,args);if(chain||chainAll){if(value===result&&isObject(result)){return this}result=new ctor(result);result.__chain__=chainAll}return result}}})}function noConflict(){context._=oldDash;return this}function noop(){}var now=isNative(now=Date.now)&&now||function(){return(new Date).getTime()};var parseInt=nativeParseInt(whitespace+"08")==8?nativeParseInt:function(value,radix){return nativeParseInt(isString(value)?value.replace(reLeadingSpacesAndZeros,""):value,radix||0)};function property(key){return function(object){return object[key]}}function random(min,max,floating){var noMin=min==null,noMax=max==null;if(floating==null){if(typeof min=="boolean"&&noMax){floating=min;min=1}else if(!noMax&&typeof max=="boolean"){floating=max;noMax=true}}if(noMin&&noMax){max=1}min=+min||0;if(noMax){max=min;min=0}else{max=+max||0}if(floating||min%1||max%1){var rand=nativeRandom();return nativeMin(min+rand*(max-min+parseFloat("1e-"+((rand+"").length-1))),max)}return baseRandom(min,max)}function result(object,key){if(object){var value=object[key];return isFunction(value)?object[key]():value}}function template(text,data,options){var settings=lodash.templateSettings;text=String(text||"");options=defaults({},options,settings);var imports=defaults({},options.imports,settings.imports),importsKeys=keys(imports),importsValues=values(imports);var isEvaluating,index=0,interpolate=options.interpolate||reNoMatch,source="__p += '";var reDelimiters=RegExp((options.escape||reNoMatch).source+"|"+interpolate.source+"|"+(interpolate===reInterpolate?reEsTemplate:reNoMatch).source+"|"+(options.evaluate||reNoMatch).source+"|$","g");text.replace(reDelimiters,function(match,escapeValue,interpolateValue,esTemplateValue,evaluateValue,offset){interpolateValue||(interpolateValue=esTemplateValue);source+=text.slice(index,offset).replace(reUnescapedString,escapeStringChar);if(escapeValue){source+="' +\n__e("+escapeValue+") +\n'"}if(evaluateValue){isEvaluating=true;source+="';\n"+evaluateValue+";\n__p += '"}if(interpolateValue){source+="' +\n((__t = ("+interpolateValue+")) == null ? '' : __t) +\n'"}index=offset+match.length;return match});source+="';\n";var variable=options.variable,hasVariable=variable;if(!hasVariable){variable="obj";source="with ("+variable+") {\n"+source+"\n}\n"}source=(isEvaluating?source.replace(reEmptyStringLeading,""):source).replace(reEmptyStringMiddle,"$1").replace(reEmptyStringTrailing,"$1;");source="function("+variable+") {\n"+(hasVariable?"":variable+" || ("+variable+" = {});\n")+"var __t, __p = '', __e = _.escape"+(isEvaluating?", __j = Array.prototype.join;\n"+"function print() { __p += __j.call(arguments, '') }\n":";\n")+source+"return __p\n}";var sourceURL="\n/*\n//# sourceURL="+(options.sourceURL||"/lodash/template/source["+templateCounter++ +"]")+"\n*/";try{var result=Function(importsKeys,"return "+source+sourceURL).apply(undefined,importsValues)}catch(e){e.source=source;throw e}if(data){return result(data)}result.source=source;return result}function times(n,callback,thisArg){n=(n=+n)>-1?n:0;var index=-1,result=Array(n);callback=baseCreateCallback(callback,thisArg,1);while(++index<n){result[index]=callback(index)}return result}function unescape(string){return string==null?"":String(string).replace(reEscapedHtml,unescapeHtmlChar)}function uniqueId(prefix){var id=++idCounter;return String(prefix==null?"":prefix)+id}function chain(value){value=new lodashWrapper(value);value.__chain__=true;return value}function tap(value,interceptor){interceptor(value);return value}function wrapperChain(){this.__chain__=true;return this}function wrapperToString(){return String(this.__wrapped__)}function wrapperValueOf(){return this.__wrapped__}lodash.after=after;lodash.assign=assign;lodash.at=at;lodash.bind=bind;lodash.bindAll=bindAll;lodash.bindKey=bindKey;lodash.chain=chain;lodash.compact=compact;lodash.compose=compose;lodash.constant=constant;lodash.countBy=countBy;lodash.create=create;lodash.createCallback=createCallback;lodash.curry=curry;lodash.debounce=debounce;lodash.defaults=defaults;lodash.defer=defer;lodash.delay=delay;lodash.difference=difference;lodash.filter=filter;lodash.flatten=flatten;lodash.forEach=forEach;lodash.forEachRight=forEachRight;lodash.forIn=forIn;lodash.forInRight=forInRight;lodash.forOwn=forOwn;lodash.forOwnRight=forOwnRight;lodash.functions=functions;lodash.groupBy=groupBy;lodash.indexBy=indexBy;lodash.initial=initial;lodash.intersection=intersection;lodash.invert=invert;lodash.invoke=invoke;lodash.keys=keys;lodash.map=map;lodash.mapValues=mapValues;lodash.max=max;lodash.memoize=memoize;lodash.merge=merge;lodash.min=min;lodash.omit=omit;lodash.once=once;lodash.pairs=pairs;lodash.partial=partial;lodash.partialRight=partialRight;lodash.pick=pick;lodash.pluck=pluck;lodash.property=property;lodash.pull=pull;lodash.range=range;lodash.reject=reject;lodash.remove=remove;lodash.rest=rest;lodash.shuffle=shuffle;lodash.sortBy=sortBy;lodash.tap=tap;lodash.throttle=throttle;lodash.times=times;lodash.toArray=toArray;lodash.transform=transform;lodash.union=union;lodash.uniq=uniq;lodash.values=values;lodash.where=where;lodash.without=without;lodash.wrap=wrap;lodash.xor=xor;lodash.zip=zip;lodash.zipObject=zipObject;lodash.collect=map;lodash.drop=rest;lodash.each=forEach;lodash.eachRight=forEachRight;lodash.extend=assign;lodash.methods=functions;lodash.object=zipObject;lodash.select=filter;lodash.tail=rest;lodash.unique=uniq;lodash.unzip=zip;mixin(lodash);lodash.clone=clone;lodash.cloneDeep=cloneDeep;lodash.contains=contains;lodash.escape=escape;lodash.every=every;lodash.find=find;lodash.findIndex=findIndex;lodash.findKey=findKey;lodash.findLast=findLast;lodash.findLastIndex=findLastIndex;lodash.findLastKey=findLastKey;lodash.has=has;lodash.identity=identity;lodash.indexOf=indexOf;lodash.isArguments=isArguments;lodash.isArray=isArray;lodash.isBoolean=isBoolean;lodash.isDate=isDate;lodash.isElement=isElement;lodash.isEmpty=isEmpty;lodash.isEqual=isEqual;lodash.isFinite=isFinite;lodash.isFunction=isFunction;lodash.isNaN=isNaN;lodash.isNull=isNull;lodash.isNumber=isNumber;lodash.isObject=isObject;lodash.isPlainObject=isPlainObject;lodash.isRegExp=isRegExp;lodash.isString=isString;lodash.isUndefined=isUndefined;lodash.lastIndexOf=lastIndexOf;lodash.mixin=mixin;lodash.noConflict=noConflict;lodash.noop=noop;lodash.now=now;lodash.parseInt=parseInt;lodash.random=random;lodash.reduce=reduce;lodash.reduceRight=reduceRight;lodash.result=result;lodash.runInContext=runInContext;lodash.size=size;lodash.some=some;lodash.sortedIndex=sortedIndex;lodash.template=template;lodash.unescape=unescape;lodash.uniqueId=uniqueId;lodash.all=every;lodash.any=some;lodash.detect=find;lodash.findWhere=find;lodash.foldl=reduce;lodash.foldr=reduceRight;lodash.include=contains;lodash.inject=reduce;mixin(function(){var source={};forOwn(lodash,function(func,methodName){if(!lodash.prototype[methodName]){source[methodName]=func}});return source}(),false);lodash.first=first;lodash.last=last;lodash.sample=sample;lodash.take=first;lodash.head=first;forOwn(lodash,function(func,methodName){var callbackable=methodName!=="sample";if(!lodash.prototype[methodName]){lodash.prototype[methodName]=function(n,guard){var chainAll=this.__chain__,result=func(this.__wrapped__,n,guard);return!chainAll&&(n==null||guard&&!(callbackable&&typeof n=="function"))?result:new lodashWrapper(result,chainAll)}}});lodash.VERSION="2.4.1";lodash.prototype.chain=wrapperChain;lodash.prototype.toString=wrapperToString;lodash.prototype.value=wrapperValueOf;lodash.prototype.valueOf=wrapperValueOf;forEach(["join","pop","shift"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){var chainAll=this.__chain__,result=func.apply(this.__wrapped__,arguments);return chainAll?new lodashWrapper(result,chainAll):result}});forEach(["push","reverse","sort","unshift"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){func.apply(this.__wrapped__,arguments);return this}});forEach(["concat","slice","splice"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){return new lodashWrapper(func.apply(this.__wrapped__,arguments),this.__chain__)}});return lodash}var _=runInContext();if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){root._=_;define(function(){return _})}else if(freeExports&&freeModule){if(moduleExports){(freeModule.exports=_)._=_}else{freeExports._=_}}else{root._=_}}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}]},{},[1])(1)});
\ No newline at end of file
+if((uPos<k0||k1<uPos)&&!(uLabel.dummy&&g.node(scanNode).dummy)){addConflict(conflicts,u,scanNode)}})});scanPos=i+1;k0=k1}});return layer}_.reduce(layering,visitLayer);return conflicts}function findType2Conflicts(g,layering){var conflicts={};function scan(south,southPos,southEnd,prevNorthBorder,nextNorthBorder){var v;_.each(_.range(southPos,southEnd),function(i){v=south[i];if(g.node(v).dummy){_.each(g.predecessors(v),function(u){var uNode=g.node(u);if(uNode.dummy&&(uNode.order<prevNorthBorder||uNode.order>nextNorthBorder)){addConflict(conflicts,u,v)}})}})}function visitLayer(north,south){var prevNorthPos=-1,nextNorthPos,southPos=0;_.each(south,function(v,southLookahead){if(g.node(v).dummy==="border"){var predecessors=g.predecessors(v);if(predecessors.length){nextNorthPos=g.node(predecessors[0]).order;scan(south,southPos,southLookahead,prevNorthPos,nextNorthPos);southPos=southLookahead;prevNorthPos=nextNorthPos}}scan(south,southPos,south.length,nextNorthPos,north.length)});return south}_.reduce(layering,visitLayer);return conflicts}function findOtherInnerSegmentNode(g,v){if(g.node(v).dummy){return _.find(g.predecessors(v),function(u){return g.node(u).dummy})}}function addConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}var conflictsV=conflicts[v];if(!conflictsV){conflicts[v]=conflictsV={}}conflictsV[w]=true}function hasConflict(conflicts,v,w){if(v>w){var tmp=v;v=w;w=tmp}return _.has(conflicts[v],w)}function verticalAlignment(g,layering,conflicts,neighborFn){var root={},align={},pos={};_.each(layering,function(layer){_.each(layer,function(v,order){root[v]=v;align[v]=v;pos[v]=order})});_.each(layering,function(layer){var prevIdx=-1;_.each(layer,function(v){var ws=neighborFn(v);if(ws.length){ws=_.sortBy(ws,function(w){return pos[w]});var mp=(ws.length-1)/2;for(var i=Math.floor(mp),il=Math.ceil(mp);i<=il;++i){var w=ws[i];if(align[v]===v&&prevIdx<pos[w]&&!hasConflict(conflicts,v,w)){align[w]=v;align[v]=root[v]=root[w];prevIdx=pos[w]}}}})});return{root:root,align:align}}function horizontalCompaction(g,layering,root,align,reverseSep){var shift={},shiftNeighbor={},sink={},xs={},pred={},graphLabel=g.graph(),sepFn=sep(graphLabel.nodesep,graphLabel.edgesep,reverseSep);_.each(layering,function(layer){_.each(layer,function(v,order){sink[v]=v;shift[v]=Number.POSITIVE_INFINITY;pred[v]=layer[order-1]})});_.each(g.nodes(),function(v){if(root[v]===v){placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,v)}});_.each(layering,function(layer){_.each(layer,function(v){xs[v]=xs[root[v]];if(v===root[v]&&shift[sink[root[v]]]<Number.POSITIVE_INFINITY){xs[v]+=shift[sink[root[v]]];var w=shiftNeighbor[sink[root[v]]];if(w&&shift[w]!==Number.POSITIVE_INFINITY){xs[v]+=shift[w]}}})});return xs}function placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,v){if(_.has(xs,v))return;xs[v]=0;var w=v,u;do{if(pred[w]){u=root[pred[w]];placeBlock(g,layering,sepFn,root,align,shift,shiftNeighbor,sink,pred,xs,u);if(sink[v]===v){sink[v]=sink[u]}var delta=sepFn(g,w,pred[w]);if(sink[v]!==sink[u]){shift[sink[u]]=Math.min(shift[sink[u]],xs[v]-xs[u]-delta);shiftNeighbor[sink[u]]=sink[v]}else{xs[v]=Math.max(xs[v],xs[u]+delta)}}w=align[w]}while(w!==v)}function findSmallestWidthAlignment(g,xss){return _.min(xss,function(xs){var min=_.min(xs,function(x,v){return x-width(g,v)/2}),max=_.max(xs,function(x,v){return x+width(g,v)/2});return max-min})}function alignCoordinates(xss,alignTo){var alignToMin=_.min(alignTo),alignToMax=_.max(alignTo);_.each(["u","d"],function(vert){_.each(["l","r"],function(horiz){var alignment=vert+horiz,xs=xss[alignment],delta;if(xs===alignTo)return;delta=horiz==="l"?alignToMin-_.min(xs):alignToMax-_.max(xs);if(delta){xss[alignment]=_.mapValues(xs,function(x){return x+delta})}})})}function balance(xss,align){return _.mapValues(xss.ul,function(ignore,v){if(align){return xss[align.toLowerCase()][v]}else{var xs=_.sortBy(_.pluck(xss,v));return(xs[1]+xs[2])/2}})}function positionX(g){var layering=util.buildLayerMatrix(g),conflicts=_.merge(findType1Conflicts(g,layering),findType2Conflicts(g,layering));var xss={},adjustedLayering;_.each(["u","d"],function(vert){adjustedLayering=vert==="u"?layering:_.values(layering).reverse();_.each(["l","r"],function(horiz){if(horiz==="r"){adjustedLayering=_.map(adjustedLayering,function(inner){return _.values(inner).reverse()})}var neighborFn=_.bind(vert==="u"?g.predecessors:g.successors,g);var align=verticalAlignment(g,adjustedLayering,conflicts,neighborFn);var xs=horizontalCompaction(g,adjustedLayering,align.root,align.align,horiz==="r");if(horiz==="r"){xs=_.mapValues(xs,function(x){return-x})}xss[vert+horiz]=xs})});var smallestWidth=findSmallestWidthAlignment(g,xss);alignCoordinates(xss,smallestWidth);return balance(xss,g.graph().align)}function sep(nodeSep,edgeSep,reverseSep){return function(g,v,w){var vLabel=g.node(v),wLabel=g.node(w),sum=0,delta;sum+=vLabel.width/2;if(_.has(vLabel,"labelpos")){switch(vLabel.labelpos.toLowerCase()){case"l":delta=-vLabel.width/2;break;case"r":delta=vLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;sum+=(vLabel.dummy?edgeSep:nodeSep)/2;sum+=(wLabel.dummy?edgeSep:nodeSep)/2;sum+=wLabel.width/2;if(_.has(wLabel,"labelpos")){switch(wLabel.labelpos.toLowerCase()){case"l":delta=wLabel.width/2;break;case"r":delta=-wLabel.width/2;break}}if(delta){sum+=reverseSep?delta:-delta}delta=0;return sum}}function width(g,v){return g.node(v).width}},{"../lodash":10,"../util":29}],24:[function(require,module,exports){"use strict";var _=require("../lodash"),util=require("../util"),positionX=require("./bk").positionX;module.exports=position;function position(g){g=util.asNonCompoundGraph(g);positionY(g);_.each(positionX(g),function(x,v){g.node(v).x=x})}function positionY(g){var layering=util.buildLayerMatrix(g),rankSep=g.graph().ranksep,prevY=0;_.each(layering,function(layer){var maxHeight=_.max(_.map(layer,function(v){return g.node(v).height}));_.each(layer,function(v){g.node(v).y=prevY+maxHeight/2});prevY+=maxHeight+rankSep})}},{"../lodash":10,"../util":29,"./bk":23}],25:[function(require,module,exports){"use strict";var _=require("../lodash"),Graph=require("../graphlib").Graph,slack=require("./util").slack;module.exports=feasibleTree;function feasibleTree(g){var t=new Graph({directed:false});var start=g.nodes()[0],size=g.nodeCount();t.setNode(start,{});var edge,delta;while(tightTree(t,g)<size){edge=findMinSlackEdge(t,g);delta=t.hasNode(edge.v)?slack(g,edge):-slack(g,edge);shiftRanks(t,g,delta)}return t}function tightTree(t,g){function dfs(v){_.each(g.nodeEdges(v),function(e){var edgeV=e.v,w=v===edgeV?e.w:edgeV;if(!t.hasNode(w)&&!slack(g,e)){t.setNode(w,{});t.setEdge(v,w,{});dfs(w)}})}_.each(t.nodes(),dfs);return t.nodeCount()}function findMinSlackEdge(t,g){return _.min(g.edges(),function(e){if(t.hasNode(e.v)!==t.hasNode(e.w)){return slack(g,e)}})}function shiftRanks(t,g,delta){_.each(t.nodes(),function(v){g.node(v).rank+=delta})}},{"../graphlib":7,"../lodash":10,"./util":28}],26:[function(require,module,exports){"use strict";var rankUtil=require("./util"),longestPath=rankUtil.longestPath,feasibleTree=require("./feasible-tree"),networkSimplex=require("./network-simplex");module.exports=rank;function rank(g){switch(g.graph().ranker){case"network-simplex":networkSimplexRanker(g);break;case"tight-tree":tightTreeRanker(g);break;case"longest-path":longestPathRanker(g);break;default:networkSimplexRanker(g)}}var longestPathRanker=longestPath;function tightTreeRanker(g){longestPath(g);feasibleTree(g)}function networkSimplexRanker(g){networkSimplex(g)}},{"./feasible-tree":25,"./network-simplex":27,"./util":28}],27:[function(require,module,exports){"use strict";var _=require("../lodash"),feasibleTree=require("./feasible-tree"),slack=require("./util").slack,initRank=require("./util").longestPath,preorder=require("../graphlib").alg.preorder,postorder=require("../graphlib").alg.postorder,simplify=require("../util").simplify;module.exports=networkSimplex;networkSimplex.initLowLimValues=initLowLimValues;networkSimplex.initCutValues=initCutValues;networkSimplex.calcCutValue=calcCutValue;networkSimplex.leaveEdge=leaveEdge;networkSimplex.enterEdge=enterEdge;networkSimplex.exchangeEdges=exchangeEdges;function networkSimplex(g){g=simplify(g);initRank(g);var t=feasibleTree(g);initLowLimValues(t);initCutValues(t,g);var e,f;while(e=leaveEdge(t)){f=enterEdge(t,g,e);exchangeEdges(t,g,e,f)}}function initCutValues(t,g){var vs=postorder(t,t.nodes());vs=vs.slice(0,vs.length-1);_.each(vs,function(v){assignCutValue(t,g,v)})}function assignCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent;t.edge(child,parent).cutvalue=calcCutValue(t,g,child)}function calcCutValue(t,g,child){var childLab=t.node(child),parent=childLab.parent,childIsTail=true,graphEdge=g.edge(child,parent),cutValue=0;if(!graphEdge){childIsTail=false;graphEdge=g.edge(parent,child)}cutValue=graphEdge.weight;_.each(g.nodeEdges(child),function(e){var isOutEdge=e.v===child,other=isOutEdge?e.w:e.v;if(other!==parent){var pointsToHead=isOutEdge===childIsTail,otherWeight=g.edge(e).weight;cutValue+=pointsToHead?otherWeight:-otherWeight;if(isTreeEdge(t,child,other)){var otherCutValue=t.edge(child,other).cutvalue;cutValue+=pointsToHead?-otherCutValue:otherCutValue}}});return cutValue}function initLowLimValues(tree,root){if(arguments.length<2){root=tree.nodes()[0]}dfsAssignLowLim(tree,{},1,root)}function dfsAssignLowLim(tree,visited,nextLim,v,parent){var low=nextLim,label=tree.node(v);visited[v]=true;_.each(tree.neighbors(v),function(w){if(!_.has(visited,w)){nextLim=dfsAssignLowLim(tree,visited,nextLim,w,v)}});label.low=low;label.lim=nextLim++;if(parent){label.parent=parent}else{delete label.parent}return nextLim}function leaveEdge(tree){return _.find(tree.edges(),function(e){return tree.edge(e).cutvalue<0})}function enterEdge(t,g,edge){var v=edge.v,w=edge.w;if(!g.hasEdge(v,w)){v=edge.w;w=edge.v}var vLabel=t.node(v),wLabel=t.node(w),tailLabel=vLabel,flip=false;if(vLabel.lim>wLabel.lim){tailLabel=wLabel;flip=true}var candidates=_.filter(g.edges(),function(edge){return flip===isDescendant(t,t.node(edge.v),tailLabel)&&flip!==isDescendant(t,t.node(edge.w),tailLabel)});return _.min(candidates,function(edge){return slack(g,edge)})}function exchangeEdges(t,g,e,f){var v=e.v,w=e.w;t.removeEdge(v,w);t.setEdge(f.v,f.w,{});initLowLimValues(t);initCutValues(t,g);updateRanks(t,g)}function updateRanks(t,g){var root=_.find(t.nodes(),function(v){return!g.node(v).parent}),vs=preorder(t,root);vs=vs.slice(1);_.each(vs,function(v){var parent=t.node(v).parent,edge=g.edge(v,parent),flipped=false;if(!edge){edge=g.edge(parent,v);flipped=true}g.node(v).rank=g.node(parent).rank+(flipped?edge.minlen:-edge.minlen)})}function isTreeEdge(tree,u,v){return tree.hasEdge(u,v)}function isDescendant(tree,vLabel,rootLabel){return rootLabel.low<=vLabel.lim&&vLabel.lim<=rootLabel.lim}},{"../graphlib":7,"../lodash":10,"../util":29,"./feasible-tree":25,"./util":28}],28:[function(require,module,exports){"use strict";var _=require("../lodash");module.exports={longestPath:longestPath,slack:slack};function longestPath(g){var visited={};function dfs(v){var label=g.node(v);if(_.has(visited,v)){return label.rank}visited[v]=true;var rank=_.min(_.map(g.outEdges(v),function(e){return dfs(e.w)-g.edge(e).minlen}));if(rank===Number.POSITIVE_INFINITY){rank=0}return label.rank=rank}_.each(g.sources(),dfs)}function slack(g,e){return g.node(e.w).rank-g.node(e.v).rank-g.edge(e).minlen}},{"../lodash":10}],29:[function(require,module,exports){"use strict";var _=require("./lodash"),Graph=require("./graphlib").Graph;module.exports={addDummyNode:addDummyNode,simplify:simplify,asNonCompoundGraph:asNonCompoundGraph,successorWeights:successorWeights,predecessorWeights:predecessorWeights,intersectRect:intersectRect,buildLayerMatrix:buildLayerMatrix,normalizeRanks:normalizeRanks,removeEmptyRanks:removeEmptyRanks,addBorderNode:addBorderNode,maxRank:maxRank,partition:partition,time:time,notime:notime};function addDummyNode(g,type,attrs,name){var v;do{v=_.uniqueId(name)}while(g.hasNode(v));attrs.dummy=type;g.setNode(v,attrs);return v}function simplify(g){var simplified=(new Graph).setGraph(g.graph());_.each(g.nodes(),function(v){simplified.setNode(v,g.node(v))});_.each(g.edges(),function(e){var simpleLabel=simplified.edge(e.v,e.w)||{weight:0,minlen:1},label=g.edge(e);simplified.setEdge(e.v,e.w,{weight:simpleLabel.weight+label.weight,minlen:Math.max(simpleLabel.minlen,label.minlen)})});return simplified}function asNonCompoundGraph(g){var simplified=new Graph({multigraph:g.isMultigraph()}).setGraph(g.graph());_.each(g.nodes(),function(v){if(!g.children(v).length){simplified.setNode(v,g.node(v))}});_.each(g.edges(),function(e){simplified.setEdge(e,g.edge(e))});return simplified}function successorWeights(g){var weightMap=_.map(g.nodes(),function(v){var sucs={};_.each(g.outEdges(v),function(e){sucs[e.w]=(sucs[e.w]||0)+g.edge(e).weight});return sucs});return _.zipObject(g.nodes(),weightMap)}function predecessorWeights(g){var weightMap=_.map(g.nodes(),function(v){var preds={};_.each(g.inEdges(v),function(e){preds[e.v]=(preds[e.v]||0)+g.edge(e).weight});return preds});return _.zipObject(g.nodes(),weightMap)}function intersectRect(rect,point){var x=rect.x;var y=rect.y;var dx=point.x-x;var dy=point.y-y;var w=rect.width/2;var h=rect.height/2;if(!dx&&!dy){throw new Error("Not possible to find intersection inside of the rectangle")}var sx,sy;if(Math.abs(dy)*w>Math.abs(dx)*h){if(dy<0){h=-h}sx=h*dx/dy;sy=h}else{if(dx<0){w=-w}sx=w;sy=w*dy/dx}return{x:x+sx,y:y+sy}}function buildLayerMatrix(g){var layering=_.map(_.range(maxRank(g)+1),function(){return[]});_.each(g.nodes(),function(v){var node=g.node(v),rank=node.rank;if(!_.isUndefined(rank)){layering[rank][node.order]=v}});return layering}function normalizeRanks(g){var min=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));_.each(g.nodes(),function(v){var node=g.node(v);if(_.has(node,"rank")){node.rank-=min}})}function removeEmptyRanks(g){var offset=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));var layers=[];_.each(g.nodes(),function(v){var rank=g.node(v).rank-offset;if(!_.has(layers,rank)){layers[rank]=[]}layers[rank].push(v)});var delta=0,nodeRankFactor=g.graph().nodeRankFactor;_.each(layers,function(vs,i){if(_.isUndefined(vs)&&i%nodeRankFactor!==0){--delta}else if(delta){_.each(vs,function(v){g.node(v).rank+=delta})}})}function addBorderNode(g,prefix,rank,order){var node={width:0,height:0};if(arguments.length>=4){node.rank=rank;node.order=order}return addDummyNode(g,"border",node,prefix)}function maxRank(g){return _.max(_.map(g.nodes(),function(v){var rank=g.node(v).rank;if(!_.isUndefined(rank)){return rank}}))}function partition(collection,fn){var result={lhs:[],rhs:[]};_.each(collection,function(value){if(fn(value)){result.lhs.push(value)}else{result.rhs.push(value)}});return result}function time(name,fn){var start=_.now();try{return fn()}finally{console.log(name+" time: "+(_.now()-start)+"ms")}}function notime(name,fn){return fn()}},{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){module.exports="0.6.4"},{}],31:[function(require,module,exports){var lib=require("./lib");module.exports={Graph:lib.Graph,json:require("./lib/json"),alg:require("./lib/alg"),version:lib.version}},{"./lib":47,"./lib/alg":38,"./lib/json":48}],32:[function(require,module,exports){var _=require("../lodash");module.exports=components;function components(g){var visited={},cmpts=[],cmpt;function dfs(v){if(_.has(visited,v))return;visited[v]=true;cmpt.push(v);_.each(g.successors(v),dfs);_.each(g.predecessors(v),dfs)}_.each(g.nodes(),function(v){cmpt=[];dfs(v);if(cmpt.length){cmpts.push(cmpt)}});return cmpts}},{"../lodash":49}],33:[function(require,module,exports){var _=require("../lodash");module.exports=dfs;function dfs(g,vs,order){if(!_.isArray(vs)){vs=[vs]}var acc=[],visited={};_.each(vs,function(v){if(!g.hasNode(v)){throw new Error("Graph does not have node: "+v)}doDfs(g,v,order==="post",visited,acc)});return acc}function doDfs(g,v,postorder,visited,acc){if(!_.has(visited,v)){visited[v]=true;if(!postorder){acc.push(v)}_.each(g.neighbors(v),function(w){doDfs(g,w,postorder,visited,acc)});if(postorder){acc.push(v)}}}},{"../lodash":49}],34:[function(require,module,exports){var dijkstra=require("./dijkstra"),_=require("../lodash");module.exports=dijkstraAll;function dijkstraAll(g,weightFunc,edgeFunc){return _.transform(g.nodes(),function(acc,v){acc[v]=dijkstra(g,v,weightFunc,edgeFunc)},{})}},{"../lodash":49,"./dijkstra":35}],35:[function(require,module,exports){var _=require("../lodash"),PriorityQueue=require("../data/priority-queue");module.exports=dijkstra;var DEFAULT_WEIGHT_FUNC=_.constant(1);function dijkstra(g,source,weightFn,edgeFn){return runDijkstra(g,String(source),weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runDijkstra(g,source,weightFn,edgeFn){var results={},pq=new PriorityQueue,v,vEntry;var updateNeighbors=function(edge){var w=edge.v!==v?edge.v:edge.w,wEntry=results[w],weight=weightFn(edge),distance=vEntry.distance+weight;if(weight<0){throw new Error("dijkstra does not allow negative edge weights. "+"Bad edge: "+edge+" Weight: "+weight)}if(distance<wEntry.distance){wEntry.distance=distance;wEntry.predecessor=v;pq.decrease(w,distance)}};g.nodes().forEach(function(v){var distance=v===source?0:Number.POSITIVE_INFINITY;results[v]={distance:distance};pq.add(v,distance)});while(pq.size()>0){v=pq.removeMin();vEntry=results[v];if(vEntry.distance===Number.POSITIVE_INFINITY){break}edgeFn(v).forEach(updateNeighbors)}return results}},{"../data/priority-queue":45,"../lodash":49}],36:[function(require,module,exports){var _=require("../lodash"),tarjan=require("./tarjan");module.exports=findCycles;function findCycles(g){return _.filter(tarjan(g),function(cmpt){return cmpt.length>1})}},{"../lodash":49,"./tarjan":43}],37:[function(require,module,exports){var _=require("../lodash");module.exports=floydWarshall;var DEFAULT_WEIGHT_FUNC=_.constant(1);function floydWarshall(g,weightFn,edgeFn){return runFloydWarshall(g,weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runFloydWarshall(g,weightFn,edgeFn){var results={},nodes=g.nodes();nodes.forEach(function(v){results[v]={};results[v][v]={distance:0};nodes.forEach(function(w){if(v!==w){results[v][w]={distance:Number.POSITIVE_INFINITY}}});edgeFn(v).forEach(function(edge){var w=edge.v===v?edge.w:edge.v,d=weightFn(edge);results[v][w]={distance:d,predecessor:v}})});nodes.forEach(function(k){var rowK=results[k];nodes.forEach(function(i){var rowI=results[i];nodes.forEach(function(j){var ik=rowI[k];var kj=rowK[j];var ij=rowI[j];var altDistance=ik.distance+kj.distance;if(altDistance<ij.distance){ij.distance=altDistance;ij.predecessor=kj.predecessor}})})});return results}},{"../lodash":49}],38:[function(require,module,exports){module.exports={components:require("./components"),dijkstra:require("./dijkstra"),dijkstraAll:require("./dijkstra-all"),findCycles:require("./find-cycles"),floydWarshall:require("./floyd-warshall"),isAcyclic:require("./is-acyclic"),postorder:require("./postorder"),preorder:require("./preorder"),prim:require("./prim"),tarjan:require("./tarjan"),topsort:require("./topsort")}},{"./components":32,"./dijkstra":35,"./dijkstra-all":34,"./find-cycles":36,"./floyd-warshall":37,"./is-acyclic":39,"./postorder":40,"./preorder":41,"./prim":42,"./tarjan":43,"./topsort":44}],39:[function(require,module,exports){var topsort=require("./topsort");module.exports=isAcyclic;function isAcyclic(g){try{topsort(g)}catch(e){if(e instanceof topsort.CycleException){return false}throw e}return true}},{"./topsort":44}],40:[function(require,module,exports){var dfs=require("./dfs");module.exports=postorder;function postorder(g,vs){return dfs(g,vs,"post")}},{"./dfs":33}],41:[function(require,module,exports){var dfs=require("./dfs");module.exports=preorder;function preorder(g,vs){return dfs(g,vs,"pre")}},{"./dfs":33}],42:[function(require,module,exports){var _=require("../lodash"),Graph=require("../graph"),PriorityQueue=require("../data/priority-queue");module.exports=prim;function prim(g,weightFunc){var result=new Graph,parents={},pq=new PriorityQueue,v;function updateNeighbors(edge){var w=edge.v===v?edge.w:edge.v,pri=pq.priority(w);if(pri!==undefined){var edgeWeight=weightFunc(edge);if(edgeWeight<pri){parents[w]=v;pq.decrease(w,edgeWeight)}}}if(g.nodeCount()===0){return result}_.each(g.nodes(),function(v){pq.add(v,Number.POSITIVE_INFINITY);result.setNode(v)});pq.decrease(g.nodes()[0],0);var init=false;while(pq.size()>0){v=pq.removeMin();if(_.has(parents,v)){result.setEdge(v,parents[v])}else if(init){throw new Error("Input graph is not connected: "+g)}else{init=true}g.nodeEdges(v).forEach(updateNeighbors)}return result}},{"../data/priority-queue":45,"../graph":46,"../lodash":49}],43:[function(require,module,exports){var _=require("../lodash");module.exports=tarjan;function tarjan(g){var index=0,stack=[],visited={},results=[];function dfs(v){var entry=visited[v]={onStack:true,lowlink:index,index:index++};stack.push(v);g.successors(v).forEach(function(w){if(!_.has(visited,w)){dfs(w);entry.lowlink=Math.min(entry.lowlink,visited[w].lowlink)}else if(visited[w].onStack){entry.lowlink=Math.min(entry.lowlink,visited[w].index)}});if(entry.lowlink===entry.index){var cmpt=[],w;do{w=stack.pop();visited[w].onStack=false;cmpt.push(w)}while(v!==w);results.push(cmpt)}}g.nodes().forEach(function(v){if(!_.has(visited,v)){dfs(v)}});return results}},{"../lodash":49}],44:[function(require,module,exports){var _=require("../lodash");module.exports=topsort;topsort.CycleException=CycleException;function topsort(g){var visited={},stack={},results=[];function visit(node){if(_.has(stack,node)){throw new CycleException}if(!_.has(visited,node)){stack[node]=true;visited[node]=true;_.each(g.predecessors(node),visit);delete stack[node];results.push(node)}}_.each(g.sinks(),visit);if(_.size(visited)!==g.nodeCount()){throw new CycleException}return results}function CycleException(){}},{"../lodash":49}],45:[function(require,module,exports){var _=require("../lodash");module.exports=PriorityQueue;function PriorityQueue(){this._arr=[];this._keyIndices={}}PriorityQueue.prototype.size=function(){return this._arr.length};PriorityQueue.prototype.keys=function(){return this._arr.map(function(x){return x.key})};PriorityQueue.prototype.has=function(key){return _.has(this._keyIndices,key)};PriorityQueue.prototype.priority=function(key){var index=this._keyIndices[key];if(index!==undefined){return this._arr[index].priority}};PriorityQueue.prototype.min=function(){if(this.size()===0){throw new Error("Queue underflow")}return this._arr[0].key};PriorityQueue.prototype.add=function(key,priority){var keyIndices=this._keyIndices;key=String(key);if(!_.has(keyIndices,key)){var arr=this._arr;var index=arr.length;keyIndices[key]=index;arr.push({key:key,priority:priority});this._decrease(index);return true}return false};PriorityQueue.prototype.removeMin=function(){this._swap(0,this._arr.length-1);var min=this._arr.pop();delete this._keyIndices[min.key];this._heapify(0);return min.key};PriorityQueue.prototype.decrease=function(key,priority){var index=this._keyIndices[key];if(priority>this._arr[index].priority){throw new Error("New priority is greater than current priority. "+"Key: "+key+" Old: "+this._arr[index].priority+" New: "+priority)}this._arr[index].priority=priority;this._decrease(index)};PriorityQueue.prototype._heapify=function(i){var arr=this._arr;var l=2*i,r=l+1,largest=i;if(l<arr.length){largest=arr[l].priority<arr[largest].priority?l:largest;if(r<arr.length){largest=arr[r].priority<arr[largest].priority?r:largest}if(largest!==i){this._swap(i,largest);this._heapify(largest)}}};PriorityQueue.prototype._decrease=function(index){var arr=this._arr;var priority=arr[index].priority;var parent;while(index!==0){parent=index>>1;if(arr[parent].priority<priority){break}this._swap(index,parent);index=parent}};PriorityQueue.prototype._swap=function(i,j){var arr=this._arr;var keyIndices=this._keyIndices;var origArrI=arr[i];var origArrJ=arr[j];arr[i]=origArrJ;arr[j]=origArrI;keyIndices[origArrJ.key]=i;keyIndices[origArrI.key]=j}},{"../lodash":49}],46:[function(require,module,exports){"use strict";var _=require("./lodash");module.exports=Graph;var DEFAULT_EDGE_NAME="\x00",GRAPH_NODE="\x00",EDGE_KEY_DELIM="
";function Graph(opts){this._isDirected=_.has(opts,"directed")?opts.directed:true;this._isMultigraph=_.has(opts,"multigraph")?opts.multigraph:false;this._isCompound=_.has(opts,"compound")?opts.compound:false;this._label=undefined;this._defaultNodeLabelFn=_.constant(undefined);this._defaultEdgeLabelFn=_.constant(undefined);this._nodes={};if(this._isCompound){this._parent={};this._children={};this._children[GRAPH_NODE]={}}this._in={};this._preds={};this._out={};this._sucs={};this._edgeObjs={};this._edgeLabels={}}Graph.prototype._nodeCount=0;Graph.prototype._edgeCount=0;Graph.prototype.isDirected=function(){return this._isDirected};Graph.prototype.isMultigraph=function(){return this._isMultigraph};Graph.prototype.isCompound=function(){return this._isCompound};Graph.prototype.setGraph=function(label){this._label=label;return this};Graph.prototype.graph=function(){return this._label};Graph.prototype.setDefaultNodeLabel=function(newDefault){if(!_.isFunction(newDefault)){newDefault=_.constant(newDefault)}this._defaultNodeLabelFn=newDefault;return this};Graph.prototype.nodeCount=function(){return this._nodeCount};Graph.prototype.nodes=function(){return _.keys(this._nodes)};Graph.prototype.sources=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._in[v])},this)};Graph.prototype.sinks=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._out[v])},this)};Graph.prototype.setNodes=function(vs,value){var args=arguments;_.each(vs,function(v){if(args.length>1){this.setNode(v,value)}else{this.setNode(v)}},this);return this};Graph.prototype.setNode=function(v,value){if(_.has(this._nodes,v)){if(arguments.length>1){this._nodes[v]=value}return this}this._nodes[v]=arguments.length>1?value:this._defaultNodeLabelFn(v);if(this._isCompound){this._parent[v]=GRAPH_NODE;this._children[v]={};this._children[GRAPH_NODE][v]=true}this._in[v]={};this._preds[v]={};this._out[v]={};this._sucs[v]={};++this._nodeCount;return this};Graph.prototype.node=function(v){return this._nodes[v]};Graph.prototype.hasNode=function(v){return _.has(this._nodes,v)};Graph.prototype.removeNode=function(v){var self=this;if(_.has(this._nodes,v)){var removeEdge=function(e){self.removeEdge(self._edgeObjs[e])};delete this._nodes[v];if(this._isCompound){this._removeFromParentsChildList(v);delete this._parent[v];_.each(this.children(v),function(child){this.setParent(child)},this);delete this._children[v]}_.each(_.keys(this._in[v]),removeEdge);delete this._in[v];delete this._preds[v];_.each(_.keys(this._out[v]),removeEdge);delete this._out[v];delete this._sucs[v];--this._nodeCount}return this};Graph.prototype.setParent=function(v,parent){if(!this._isCompound){throw new Error("Cannot set parent in a non-compound graph")}if(_.isUndefined(parent)){parent=GRAPH_NODE}else{for(var ancestor=parent;!_.isUndefined(ancestor);ancestor=this.parent(ancestor)){if(ancestor===v){throw new Error("Setting "+parent+" as parent of "+v+" would create create a cycle")}}this.setNode(parent)}this.setNode(v);this._removeFromParentsChildList(v);this._parent[v]=parent;this._children[parent][v]=true;return this};Graph.prototype._removeFromParentsChildList=function(v){delete this._children[this._parent[v]][v]};Graph.prototype.parent=function(v){if(this._isCompound){var parent=this._parent[v];if(parent!==GRAPH_NODE){return parent}}};Graph.prototype.children=function(v){if(_.isUndefined(v)){v=GRAPH_NODE}if(this._isCompound){var children=this._children[v];if(children){return _.keys(children)}}else if(v===GRAPH_NODE){return this.nodes()}else if(this.hasNode(v)){return[]}};Graph.prototype.predecessors=function(v){var predsV=this._preds[v];if(predsV){return _.keys(predsV)}};Graph.prototype.successors=function(v){var sucsV=this._sucs[v];if(sucsV){return _.keys(sucsV)}};Graph.prototype.neighbors=function(v){var preds=this.predecessors(v);if(preds){return _.union(preds,this.successors(v))}};Graph.prototype.setDefaultEdgeLabel=function(newDefault){if(!_.isFunction(newDefault)){newDefault=_.constant(newDefault)}this._defaultEdgeLabelFn=newDefault;return this};Graph.prototype.edgeCount=function(){return this._edgeCount};Graph.prototype.edges=function(){return _.values(this._edgeObjs)};Graph.prototype.setPath=function(vs,value){var self=this,args=arguments;_.reduce(vs,function(v,w){if(args.length>1){self.setEdge(v,w,value)}else{self.setEdge(v,w)}return w});return this};Graph.prototype.setEdge=function(){var v,w,name,value,valueSpecified=false;if(_.isPlainObject(arguments[0])){v=arguments[0].v;w=arguments[0].w;name=arguments[0].name;if(arguments.length===2){value=arguments[1];valueSpecified=true}}else{v=arguments[0];w=arguments[1];name=arguments[3];if(arguments.length>2){value=arguments[2];valueSpecified=true}}v=""+v;w=""+w;if(!_.isUndefined(name)){name=""+name}var e=edgeArgsToId(this._isDirected,v,w,name);if(_.has(this._edgeLabels,e)){if(valueSpecified){this._edgeLabels[e]=value}return this}if(!_.isUndefined(name)&&!this._isMultigraph){throw new Error("Cannot set a named edge when isMultigraph = false")}this.setNode(v);this.setNode(w);this._edgeLabels[e]=valueSpecified?value:this._defaultEdgeLabelFn(v,w,name);var edgeObj=edgeArgsToObj(this._isDirected,v,w,name);v=edgeObj.v;w=edgeObj.w;Object.freeze(edgeObj);this._edgeObjs[e]=edgeObj;incrementOrInitEntry(this._preds[w],v);incrementOrInitEntry(this._sucs[v],w);this._in[w][e]=edgeObj;this._out[v][e]=edgeObj;this._edgeCount++;return this};Graph.prototype.edge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name);return this._edgeLabels[e]};Graph.prototype.hasEdge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name);return _.has(this._edgeLabels,e)};Graph.prototype.removeEdge=function(v,w,name){var e=arguments.length===1?edgeObjToId(this._isDirected,arguments[0]):edgeArgsToId(this._isDirected,v,w,name),edge=this._edgeObjs[e];if(edge){v=edge.v;w=edge.w;delete this._edgeLabels[e];delete this._edgeObjs[e];decrementOrRemoveEntry(this._preds[w],v);decrementOrRemoveEntry(this._sucs[v],w);delete this._in[w][e];delete this._out[v][e];this._edgeCount--}return this};Graph.prototype.inEdges=function(v,u){var inV=this._in[v];if(inV){var edges=_.values(inV);if(!u){return edges}return _.filter(edges,function(edge){return edge.v===u})}};Graph.prototype.outEdges=function(v,w){var outV=this._out[v];if(outV){var edges=_.values(outV);if(!w){return edges}return _.filter(edges,function(edge){return edge.w===w})}};Graph.prototype.nodeEdges=function(v,w){var inEdges=this.inEdges(v,w);if(inEdges){return inEdges.concat(this.outEdges(v,w))}};function incrementOrInitEntry(map,k){if(_.has(map,k)){map[k]++}else{map[k]=1}}function decrementOrRemoveEntry(map,k){if(!--map[k]){delete map[k]}}function edgeArgsToId(isDirected,v,w,name){if(!isDirected&&v>w){var tmp=v;v=w;w=tmp}return v+EDGE_KEY_DELIM+w+EDGE_KEY_DELIM+(_.isUndefined(name)?DEFAULT_EDGE_NAME:name)}function edgeArgsToObj(isDirected,v,w,name){if(!isDirected&&v>w){var tmp=v;v=w;w=tmp}var edgeObj={v:v,w:w};if(name){edgeObj.name=name}return edgeObj}function edgeObjToId(isDirected,edgeObj){return edgeArgsToId(isDirected,edgeObj.v,edgeObj.w,edgeObj.name)}},{"./lodash":49}],47:[function(require,module,exports){module.exports={Graph:require("./graph"),version:require("./version")}},{"./graph":46,"./version":50}],48:[function(require,module,exports){var _=require("./lodash"),Graph=require("./graph");module.exports={write:write,read:read};function write(g){var json={options:{directed:g.isDirected(),multigraph:g.isMultigraph(),compound:g.isCompound()},nodes:writeNodes(g),edges:writeEdges(g)};
+if(!_.isUndefined(g.graph())){json.value=_.clone(g.graph())}return json}function writeNodes(g){return _.map(g.nodes(),function(v){var nodeValue=g.node(v),parent=g.parent(v),node={v:v};if(!_.isUndefined(nodeValue)){node.value=nodeValue}if(!_.isUndefined(parent)){node.parent=parent}return node})}function writeEdges(g){return _.map(g.edges(),function(e){var edgeValue=g.edge(e),edge={v:e.v,w:e.w};if(!_.isUndefined(e.name)){edge.name=e.name}if(!_.isUndefined(edgeValue)){edge.value=edgeValue}return edge})}function read(json){var g=new Graph(json.options).setGraph(json.value);_.each(json.nodes,function(entry){g.setNode(entry.v,entry.value);if(entry.parent){g.setParent(entry.v,entry.parent)}});_.each(json.edges,function(entry){g.setEdge({v:entry.v,w:entry.w,name:entry.name},entry.value)});return g}},{"./graph":46,"./lodash":49}],49:[function(require,module,exports){module.exports=require(10)},{"/Users/cpettitt/projects/dagre/lib/lodash.js":10,lodash:51}],50:[function(require,module,exports){module.exports="1.0.1"},{}],51:[function(require,module,exports){(function(global){(function(){var undefined;var arrayPool=[],objectPool=[];var idCounter=0;var keyPrefix=+new Date+"";var largeArraySize=75;var maxPoolSize=40;var whitespace=" 	\f "+"\n\r\u2028\u2029"+" ᠎             　";var reEmptyStringLeading=/\b__p \+= '';/g,reEmptyStringMiddle=/\b(__p \+=) '' \+/g,reEmptyStringTrailing=/(__e\(.*?\)|\b__t\)) \+\n'';/g;var reEsTemplate=/\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;var reFlags=/\w*$/;var reFuncName=/^\s*function[ \n\r\t]+\w/;var reInterpolate=/<%=([\s\S]+?)%>/g;var reLeadingSpacesAndZeros=RegExp("^["+whitespace+"]*0+(?=.$)");var reNoMatch=/($^)/;var reThis=/\bthis\b/;var reUnescapedString=/['\n\r\t\u2028\u2029\\]/g;var contextProps=["Array","Boolean","Date","Function","Math","Number","Object","RegExp","String","_","attachEvent","clearTimeout","isFinite","isNaN","parseInt","setTimeout"];var templateCounter=0;var argsClass="[object Arguments]",arrayClass="[object Array]",boolClass="[object Boolean]",dateClass="[object Date]",funcClass="[object Function]",numberClass="[object Number]",objectClass="[object Object]",regexpClass="[object RegExp]",stringClass="[object String]";var cloneableClasses={};cloneableClasses[funcClass]=false;cloneableClasses[argsClass]=cloneableClasses[arrayClass]=cloneableClasses[boolClass]=cloneableClasses[dateClass]=cloneableClasses[numberClass]=cloneableClasses[objectClass]=cloneableClasses[regexpClass]=cloneableClasses[stringClass]=true;var debounceOptions={leading:false,maxWait:0,trailing:false};var descriptor={configurable:false,enumerable:false,value:null,writable:false};var objectTypes={"boolean":false,"function":true,object:true,number:false,string:false,undefined:false};var stringEscapes={"\\":"\\","'":"'","\n":"n","\r":"r","	":"t","\u2028":"u2028","\u2029":"u2029"};var root=objectTypes[typeof window]&&window||this;var freeExports=objectTypes[typeof exports]&&exports&&!exports.nodeType&&exports;var freeModule=objectTypes[typeof module]&&module&&!module.nodeType&&module;var moduleExports=freeModule&&freeModule.exports===freeExports&&freeExports;var freeGlobal=objectTypes[typeof global]&&global;if(freeGlobal&&(freeGlobal.global===freeGlobal||freeGlobal.window===freeGlobal)){root=freeGlobal}function baseIndexOf(array,value,fromIndex){var index=(fromIndex||0)-1,length=array?array.length:0;while(++index<length){if(array[index]===value){return index}}return-1}function cacheIndexOf(cache,value){var type=typeof value;cache=cache.cache;if(type=="boolean"||value==null){return cache[value]?0:-1}if(type!="number"&&type!="string"){type="object"}var key=type=="number"?value:keyPrefix+value;cache=(cache=cache[type])&&cache[key];return type=="object"?cache&&baseIndexOf(cache,value)>-1?0:-1:cache?0:-1}function cachePush(value){var cache=this.cache,type=typeof value;if(type=="boolean"||value==null){cache[value]=true}else{if(type!="number"&&type!="string"){type="object"}var key=type=="number"?value:keyPrefix+value,typeCache=cache[type]||(cache[type]={});if(type=="object"){(typeCache[key]||(typeCache[key]=[])).push(value)}else{typeCache[key]=true}}}function charAtCallback(value){return value.charCodeAt(0)}function compareAscending(a,b){var ac=a.criteria,bc=b.criteria,index=-1,length=ac.length;while(++index<length){var value=ac[index],other=bc[index];if(value!==other){if(value>other||typeof value=="undefined"){return 1}if(value<other||typeof other=="undefined"){return-1}}}return a.index-b.index}function createCache(array){var index=-1,length=array.length,first=array[0],mid=array[length/2|0],last=array[length-1];if(first&&typeof first=="object"&&mid&&typeof mid=="object"&&last&&typeof last=="object"){return false}var cache=getObject();cache["false"]=cache["null"]=cache["true"]=cache["undefined"]=false;var result=getObject();result.array=array;result.cache=cache;result.push=cachePush;while(++index<length){result.push(array[index])}return result}function escapeStringChar(match){return"\\"+stringEscapes[match]}function getArray(){return arrayPool.pop()||[]}function getObject(){return objectPool.pop()||{array:null,cache:null,criteria:null,"false":false,index:0,"null":false,number:null,object:null,push:null,string:null,"true":false,undefined:false,value:null}}function releaseArray(array){array.length=0;if(arrayPool.length<maxPoolSize){arrayPool.push(array)}}function releaseObject(object){var cache=object.cache;if(cache){releaseObject(cache)}object.array=object.cache=object.criteria=object.object=object.number=object.string=object.value=null;if(objectPool.length<maxPoolSize){objectPool.push(object)}}function slice(array,start,end){start||(start=0);if(typeof end=="undefined"){end=array?array.length:0}var index=-1,length=end-start||0,result=Array(length<0?0:length);while(++index<length){result[index]=array[start+index]}return result}function runInContext(context){context=context?_.defaults(root.Object(),context,_.pick(root,contextProps)):root;var Array=context.Array,Boolean=context.Boolean,Date=context.Date,Function=context.Function,Math=context.Math,Number=context.Number,Object=context.Object,RegExp=context.RegExp,String=context.String,TypeError=context.TypeError;var arrayRef=[];var objectProto=Object.prototype;var oldDash=context._;var toString=objectProto.toString;var reNative=RegExp("^"+String(toString).replace(/[.*+?^${}()|[\]\\]/g,"\\$&").replace(/toString| for [^\]]+/g,".*?")+"$");var ceil=Math.ceil,clearTimeout=context.clearTimeout,floor=Math.floor,fnToString=Function.prototype.toString,getPrototypeOf=isNative(getPrototypeOf=Object.getPrototypeOf)&&getPrototypeOf,hasOwnProperty=objectProto.hasOwnProperty,push=arrayRef.push,setTimeout=context.setTimeout,splice=arrayRef.splice,unshift=arrayRef.unshift;var defineProperty=function(){try{var o={},func=isNative(func=Object.defineProperty)&&func,result=func(o,o,o)&&func}catch(e){}return result}();var nativeCreate=isNative(nativeCreate=Object.create)&&nativeCreate,nativeIsArray=isNative(nativeIsArray=Array.isArray)&&nativeIsArray,nativeIsFinite=context.isFinite,nativeIsNaN=context.isNaN,nativeKeys=isNative(nativeKeys=Object.keys)&&nativeKeys,nativeMax=Math.max,nativeMin=Math.min,nativeParseInt=context.parseInt,nativeRandom=Math.random;var ctorByClass={};ctorByClass[arrayClass]=Array;ctorByClass[boolClass]=Boolean;ctorByClass[dateClass]=Date;ctorByClass[funcClass]=Function;ctorByClass[objectClass]=Object;ctorByClass[numberClass]=Number;ctorByClass[regexpClass]=RegExp;ctorByClass[stringClass]=String;function lodash(value){return value&&typeof value=="object"&&!isArray(value)&&hasOwnProperty.call(value,"__wrapped__")?value:new lodashWrapper(value)}function lodashWrapper(value,chainAll){this.__chain__=!!chainAll;this.__wrapped__=value}lodashWrapper.prototype=lodash.prototype;var support=lodash.support={};support.funcDecomp=!isNative(context.WinRTError)&&reThis.test(runInContext);support.funcNames=typeof Function.name=="string";lodash.templateSettings={escape:/<%-([\s\S]+?)%>/g,evaluate:/<%([\s\S]+?)%>/g,interpolate:reInterpolate,variable:"",imports:{_:lodash}};function baseBind(bindData){var func=bindData[0],partialArgs=bindData[2],thisArg=bindData[4];function bound(){if(partialArgs){var args=slice(partialArgs);push.apply(args,arguments)}if(this instanceof bound){var thisBinding=baseCreate(func.prototype),result=func.apply(thisBinding,args||arguments);return isObject(result)?result:thisBinding}return func.apply(thisArg,args||arguments)}setBindData(bound,bindData);return bound}function baseClone(value,isDeep,callback,stackA,stackB){if(callback){var result=callback(value);if(typeof result!="undefined"){return result}}var isObj=isObject(value);if(isObj){var className=toString.call(value);if(!cloneableClasses[className]){return value}var ctor=ctorByClass[className];switch(className){case boolClass:case dateClass:return new ctor(+value);case numberClass:case stringClass:return new ctor(value);case regexpClass:result=ctor(value.source,reFlags.exec(value));result.lastIndex=value.lastIndex;return result}}else{return value}var isArr=isArray(value);if(isDeep){var initedStack=!stackA;stackA||(stackA=getArray());stackB||(stackB=getArray());var length=stackA.length;while(length--){if(stackA[length]==value){return stackB[length]}}result=isArr?ctor(value.length):{}}else{result=isArr?slice(value):assign({},value)}if(isArr){if(hasOwnProperty.call(value,"index")){result.index=value.index}if(hasOwnProperty.call(value,"input")){result.input=value.input}}if(!isDeep){return result}stackA.push(value);stackB.push(result);(isArr?forEach:forOwn)(value,function(objValue,key){result[key]=baseClone(objValue,isDeep,callback,stackA,stackB)});if(initedStack){releaseArray(stackA);releaseArray(stackB)}return result}function baseCreate(prototype,properties){return isObject(prototype)?nativeCreate(prototype):{}}if(!nativeCreate){baseCreate=function(){function Object(){}return function(prototype){if(isObject(prototype)){Object.prototype=prototype;var result=new Object;Object.prototype=null}return result||context.Object()}}()}function baseCreateCallback(func,thisArg,argCount){if(typeof func!="function"){return identity}if(typeof thisArg=="undefined"||!("prototype"in func)){return func}var bindData=func.__bindData__;if(typeof bindData=="undefined"){if(support.funcNames){bindData=!func.name}bindData=bindData||!support.funcDecomp;if(!bindData){var source=fnToString.call(func);if(!support.funcNames){bindData=!reFuncName.test(source)}if(!bindData){bindData=reThis.test(source);setBindData(func,bindData)}}}if(bindData===false||bindData!==true&&bindData[1]&1){return func}switch(argCount){case 1:return function(value){return func.call(thisArg,value)};case 2:return function(a,b){return func.call(thisArg,a,b)};case 3:return function(value,index,collection){return func.call(thisArg,value,index,collection)};case 4:return function(accumulator,value,index,collection){return func.call(thisArg,accumulator,value,index,collection)}}return bind(func,thisArg)}function baseCreateWrapper(bindData){var func=bindData[0],bitmask=bindData[1],partialArgs=bindData[2],partialRightArgs=bindData[3],thisArg=bindData[4],arity=bindData[5];var isBind=bitmask&1,isBindKey=bitmask&2,isCurry=bitmask&4,isCurryBound=bitmask&8,key=func;function bound(){var thisBinding=isBind?thisArg:this;if(partialArgs){var args=slice(partialArgs);push.apply(args,arguments)}if(partialRightArgs||isCurry){args||(args=slice(arguments));if(partialRightArgs){push.apply(args,partialRightArgs)}if(isCurry&&args.length<arity){bitmask|=16&~32;return baseCreateWrapper([func,isCurryBound?bitmask:bitmask&~3,args,null,thisArg,arity])}}args||(args=arguments);if(isBindKey){func=thisBinding[key]}if(this instanceof bound){thisBinding=baseCreate(func.prototype);var result=func.apply(thisBinding,args);return isObject(result)?result:thisBinding}return func.apply(thisBinding,args)}setBindData(bound,bindData);return bound}function baseDifference(array,values){var index=-1,indexOf=getIndexOf(),length=array?array.length:0,isLarge=length>=largeArraySize&&indexOf===baseIndexOf,result=[];if(isLarge){var cache=createCache(values);if(cache){indexOf=cacheIndexOf;values=cache}else{isLarge=false}}while(++index<length){var value=array[index];if(indexOf(values,value)<0){result.push(value)}}if(isLarge){releaseObject(values)}return result}function baseFlatten(array,isShallow,isStrict,fromIndex){var index=(fromIndex||0)-1,length=array?array.length:0,result=[];while(++index<length){var value=array[index];if(value&&typeof value=="object"&&typeof value.length=="number"&&(isArray(value)||isArguments(value))){if(!isShallow){value=baseFlatten(value,isShallow,isStrict)}var valIndex=-1,valLength=value.length,resIndex=result.length;result.length+=valLength;while(++valIndex<valLength){result[resIndex++]=value[valIndex]}}else if(!isStrict){result.push(value)}}return result}function baseIsEqual(a,b,callback,isWhere,stackA,stackB){if(callback){var result=callback(a,b);if(typeof result!="undefined"){return!!result}}if(a===b){return a!==0||1/a==1/b}var type=typeof a,otherType=typeof b;if(a===a&&!(a&&objectTypes[type])&&!(b&&objectTypes[otherType])){return false}if(a==null||b==null){return a===b}var className=toString.call(a),otherClass=toString.call(b);if(className==argsClass){className=objectClass}if(otherClass==argsClass){otherClass=objectClass}if(className!=otherClass){return false}switch(className){case boolClass:case dateClass:return+a==+b;case numberClass:return a!=+a?b!=+b:a==0?1/a==1/b:a==+b;case regexpClass:case stringClass:return a==String(b)}var isArr=className==arrayClass;if(!isArr){var aWrapped=hasOwnProperty.call(a,"__wrapped__"),bWrapped=hasOwnProperty.call(b,"__wrapped__");if(aWrapped||bWrapped){return baseIsEqual(aWrapped?a.__wrapped__:a,bWrapped?b.__wrapped__:b,callback,isWhere,stackA,stackB)}if(className!=objectClass){return false}var ctorA=a.constructor,ctorB=b.constructor;if(ctorA!=ctorB&&!(isFunction(ctorA)&&ctorA instanceof ctorA&&isFunction(ctorB)&&ctorB instanceof ctorB)&&("constructor"in a&&"constructor"in b)){return false}}var initedStack=!stackA;stackA||(stackA=getArray());stackB||(stackB=getArray());var length=stackA.length;while(length--){if(stackA[length]==a){return stackB[length]==b}}var size=0;result=true;stackA.push(a);stackB.push(b);if(isArr){length=a.length;size=b.length;result=size==length;if(result||isWhere){while(size--){var index=length,value=b[size];if(isWhere){while(index--){if(result=baseIsEqual(a[index],value,callback,isWhere,stackA,stackB)){break}}}else if(!(result=baseIsEqual(a[size],value,callback,isWhere,stackA,stackB))){break}}}}else{forIn(b,function(value,key,b){if(hasOwnProperty.call(b,key)){size++;return result=hasOwnProperty.call(a,key)&&baseIsEqual(a[key],value,callback,isWhere,stackA,stackB)}});if(result&&!isWhere){forIn(a,function(value,key,a){if(hasOwnProperty.call(a,key)){return result=--size>-1}})}}stackA.pop();stackB.pop();if(initedStack){releaseArray(stackA);releaseArray(stackB)}return result}function baseMerge(object,source,callback,stackA,stackB){(isArray(source)?forEach:forOwn)(source,function(source,key){var found,isArr,result=source,value=object[key];if(source&&((isArr=isArray(source))||isPlainObject(source))){var stackLength=stackA.length;while(stackLength--){if(found=stackA[stackLength]==source){value=stackB[stackLength];break}}if(!found){var isShallow;if(callback){result=callback(value,source);if(isShallow=typeof result!="undefined"){value=result}}if(!isShallow){value=isArr?isArray(value)?value:[]:isPlainObject(value)?value:{}}stackA.push(source);stackB.push(value);if(!isShallow){baseMerge(value,source,callback,stackA,stackB)}}}else{if(callback){result=callback(value,source);if(typeof result=="undefined"){result=source}}if(typeof result!="undefined"){value=result}}object[key]=value})}function baseRandom(min,max){return min+floor(nativeRandom()*(max-min+1))}function baseUniq(array,isSorted,callback){var index=-1,indexOf=getIndexOf(),length=array?array.length:0,result=[];var isLarge=!isSorted&&length>=largeArraySize&&indexOf===baseIndexOf,seen=callback||isLarge?getArray():result;if(isLarge){var cache=createCache(seen);indexOf=cacheIndexOf;seen=cache}while(++index<length){var value=array[index],computed=callback?callback(value,index,array):value;if(isSorted?!index||seen[seen.length-1]!==computed:indexOf(seen,computed)<0){if(callback||isLarge){seen.push(computed)}result.push(value)}}if(isLarge){releaseArray(seen.array);releaseObject(seen)}else if(callback){releaseArray(seen)}return result}function createAggregator(setter){return function(collection,callback,thisArg){var result={};callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];setter(result,value,callback(value,index,collection),collection)}}else{forOwn(collection,function(value,key,collection){setter(result,value,callback(value,key,collection),collection)})}return result}}function createWrapper(func,bitmask,partialArgs,partialRightArgs,thisArg,arity){var isBind=bitmask&1,isBindKey=bitmask&2,isCurry=bitmask&4,isCurryBound=bitmask&8,isPartial=bitmask&16,isPartialRight=bitmask&32;if(!isBindKey&&!isFunction(func)){throw new TypeError}if(isPartial&&!partialArgs.length){bitmask&=~16;isPartial=partialArgs=false}if(isPartialRight&&!partialRightArgs.length){bitmask&=~32;isPartialRight=partialRightArgs=false}var bindData=func&&func.__bindData__;if(bindData&&bindData!==true){bindData=slice(bindData);if(bindData[2]){bindData[2]=slice(bindData[2])}if(bindData[3]){bindData[3]=slice(bindData[3])}if(isBind&&!(bindData[1]&1)){bindData[4]=thisArg}if(!isBind&&bindData[1]&1){bitmask|=8}if(isCurry&&!(bindData[1]&4)){bindData[5]=arity}if(isPartial){push.apply(bindData[2]||(bindData[2]=[]),partialArgs)}if(isPartialRight){unshift.apply(bindData[3]||(bindData[3]=[]),partialRightArgs)}bindData[1]|=bitmask;return createWrapper.apply(null,bindData)}var creater=bitmask==1||bitmask===17?baseBind:baseCreateWrapper;return creater([func,bitmask,partialArgs,partialRightArgs,thisArg,arity])}function escapeHtmlChar(match){return htmlEscapes[match]}function getIndexOf(){var result=(result=lodash.indexOf)===indexOf?baseIndexOf:result;return result}function isNative(value){return typeof value=="function"&&reNative.test(value)}var setBindData=!defineProperty?noop:function(func,value){descriptor.value=value;defineProperty(func,"__bindData__",descriptor)};function shimIsPlainObject(value){var ctor,result;if(!(value&&toString.call(value)==objectClass)||(ctor=value.constructor,isFunction(ctor)&&!(ctor instanceof ctor))){return false}forIn(value,function(value,key){result=key});return typeof result=="undefined"||hasOwnProperty.call(value,result)}function unescapeHtmlChar(match){return htmlUnescapes[match]}function isArguments(value){return value&&typeof value=="object"&&typeof value.length=="number"&&toString.call(value)==argsClass||false}var isArray=nativeIsArray||function(value){return value&&typeof value=="object"&&typeof value.length=="number"&&toString.call(value)==arrayClass||false};var shimKeys=function(object){var index,iterable=object,result=[];if(!iterable)return result;if(!objectTypes[typeof object])return result;for(index in iterable){if(hasOwnProperty.call(iterable,index)){result.push(index)}}return result};var keys=!nativeKeys?shimKeys:function(object){if(!isObject(object)){return[]}return nativeKeys(object)};var htmlEscapes={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;"};var htmlUnescapes=invert(htmlEscapes);var reEscapedHtml=RegExp("("+keys(htmlUnescapes).join("|")+")","g"),reUnescapedHtml=RegExp("["+keys(htmlEscapes).join("")+"]","g");var assign=function(object,source,guard){var index,iterable=object,result=iterable;if(!iterable)return result;var args=arguments,argsIndex=0,argsLength=typeof guard=="number"?2:args.length;if(argsLength>3&&typeof args[argsLength-2]=="function"){var callback=baseCreateCallback(args[--argsLength-1],args[argsLength--],2)}else if(argsLength>2&&typeof args[argsLength-1]=="function"){callback=args[--argsLength]}while(++argsIndex<argsLength){iterable=args[argsIndex];if(iterable&&objectTypes[typeof iterable]){var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];result[index]=callback?callback(result[index],iterable[index]):iterable[index]}}}return result};function clone(value,isDeep,callback,thisArg){if(typeof isDeep!="boolean"&&isDeep!=null){thisArg=callback;callback=isDeep;isDeep=false}return baseClone(value,isDeep,typeof callback=="function"&&baseCreateCallback(callback,thisArg,1))}function cloneDeep(value,callback,thisArg){return baseClone(value,true,typeof callback=="function"&&baseCreateCallback(callback,thisArg,1))}function create(prototype,properties){var result=baseCreate(prototype);return properties?assign(result,properties):result}var defaults=function(object,source,guard){var index,iterable=object,result=iterable;if(!iterable)return result;var args=arguments,argsIndex=0,argsLength=typeof guard=="number"?2:args.length;while(++argsIndex<argsLength){iterable=args[argsIndex];if(iterable&&objectTypes[typeof iterable]){var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];if(typeof result[index]=="undefined")result[index]=iterable[index]}}}return result};function findKey(object,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forOwn(object,function(value,key,object){if(callback(value,key,object)){result=key;return false}});return result}function findLastKey(object,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forOwnRight(object,function(value,key,object){if(callback(value,key,object)){result=key;return false}});return result}var forIn=function(collection,callback,thisArg){var index,iterable=collection,result=iterable;if(!iterable)return result;if(!objectTypes[typeof iterable])return result;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);for(index in iterable){if(callback(iterable[index],index,collection)===false)return result}return result};function forInRight(object,callback,thisArg){var pairs=[];forIn(object,function(value,key){pairs.push(key,value)});var length=pairs.length;callback=baseCreateCallback(callback,thisArg,3);while(length--){if(callback(pairs[length--],pairs[length],object)===false){break}}return object}var forOwn=function(collection,callback,thisArg){var index,iterable=collection,result=iterable;if(!iterable)return result;if(!objectTypes[typeof iterable])return result;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);var ownIndex=-1,ownProps=objectTypes[typeof iterable]&&keys(iterable),length=ownProps?ownProps.length:0;while(++ownIndex<length){index=ownProps[ownIndex];if(callback(iterable[index],index,collection)===false)return result}return result};function forOwnRight(object,callback,thisArg){var props=keys(object),length=props.length;callback=baseCreateCallback(callback,thisArg,3);while(length--){var key=props[length];if(callback(object[key],key,object)===false){break}}return object}function functions(object){var result=[];forIn(object,function(value,key){if(isFunction(value)){result.push(key)}});return result.sort()}function has(object,key){return object?hasOwnProperty.call(object,key):false}function invert(object){var index=-1,props=keys(object),length=props.length,result={};while(++index<length){var key=props[index];result[object[key]]=key}return result}function isBoolean(value){return value===true||value===false||value&&typeof value=="object"&&toString.call(value)==boolClass||false}function isDate(value){return value&&typeof value=="object"&&toString.call(value)==dateClass||false}function isElement(value){return value&&value.nodeType===1||false}function isEmpty(value){var result=true;if(!value){return result}var className=toString.call(value),length=value.length;if(className==arrayClass||className==stringClass||className==argsClass||className==objectClass&&typeof length=="number"&&isFunction(value.splice)){return!length}forOwn(value,function(){return result=false});return result}function isEqual(a,b,callback,thisArg){return baseIsEqual(a,b,typeof callback=="function"&&baseCreateCallback(callback,thisArg,2))}function isFinite(value){return nativeIsFinite(value)&&!nativeIsNaN(parseFloat(value))}function isFunction(value){return typeof value=="function"}function isObject(value){return!!(value&&objectTypes[typeof value])}function isNaN(value){return isNumber(value)&&value!=+value}function isNull(value){return value===null}function isNumber(value){return typeof value=="number"||value&&typeof value=="object"&&toString.call(value)==numberClass||false}var isPlainObject=!getPrototypeOf?shimIsPlainObject:function(value){if(!(value&&toString.call(value)==objectClass)){return false}var valueOf=value.valueOf,objProto=isNative(valueOf)&&(objProto=getPrototypeOf(valueOf))&&getPrototypeOf(objProto);return objProto?value==objProto||getPrototypeOf(value)==objProto:shimIsPlainObject(value)};function isRegExp(value){return value&&typeof value=="object"&&toString.call(value)==regexpClass||false}function isString(value){return typeof value=="string"||value&&typeof value=="object"&&toString.call(value)==stringClass||false}function isUndefined(value){return typeof value=="undefined"}function mapValues(object,callback,thisArg){var result={};callback=lodash.createCallback(callback,thisArg,3);forOwn(object,function(value,key,object){result[key]=callback(value,key,object)});return result}function merge(object){var args=arguments,length=2;if(!isObject(object)){return object}if(typeof args[2]!="number"){length=args.length}if(length>3&&typeof args[length-2]=="function"){var callback=baseCreateCallback(args[--length-1],args[length--],2)}else if(length>2&&typeof args[length-1]=="function"){callback=args[--length]}var sources=slice(arguments,1,length),index=-1,stackA=getArray(),stackB=getArray();while(++index<length){baseMerge(object,sources[index],callback,stackA,stackB)}releaseArray(stackA);releaseArray(stackB);return object}function omit(object,callback,thisArg){var result={};if(typeof callback!="function"){var props=[];forIn(object,function(value,key){props.push(key)});props=baseDifference(props,baseFlatten(arguments,true,false,1));var index=-1,length=props.length;while(++index<length){var key=props[index];result[key]=object[key]}}else{callback=lodash.createCallback(callback,thisArg,3);forIn(object,function(value,key,object){if(!callback(value,key,object)){result[key]=value}})}return result}function pairs(object){var index=-1,props=keys(object),length=props.length,result=Array(length);while(++index<length){var key=props[index];result[index]=[key,object[key]]}return result}function pick(object,callback,thisArg){var result={};if(typeof callback!="function"){var index=-1,props=baseFlatten(arguments,true,false,1),length=isObject(object)?props.length:0;while(++index<length){var key=props[index];if(key in object){result[key]=object[key]}}}else{callback=lodash.createCallback(callback,thisArg,3);forIn(object,function(value,key,object){if(callback(value,key,object)){result[key]=value}})}return result}function transform(object,callback,accumulator,thisArg){var isArr=isArray(object);if(accumulator==null){if(isArr){accumulator=[]}else{var ctor=object&&object.constructor,proto=ctor&&ctor.prototype;accumulator=baseCreate(proto)}}if(callback){callback=lodash.createCallback(callback,thisArg,4);(isArr?forEach:forOwn)(object,function(value,index,object){return callback(accumulator,value,index,object)})}return accumulator}function values(object){var index=-1,props=keys(object),length=props.length,result=Array(length);while(++index<length){result[index]=object[props[index]]}return result}function at(collection){var args=arguments,index=-1,props=baseFlatten(args,true,false,1),length=args[2]&&args[2][args[1]]===collection?1:props.length,result=Array(length);while(++index<length){result[index]=collection[props[index]]}return result}function contains(collection,target,fromIndex){var index=-1,indexOf=getIndexOf(),length=collection?collection.length:0,result=false;fromIndex=(fromIndex<0?nativeMax(0,length+fromIndex):fromIndex)||0;if(isArray(collection)){result=indexOf(collection,target,fromIndex)>-1}else if(typeof length=="number"){result=(isString(collection)?collection.indexOf(target,fromIndex):indexOf(collection,target,fromIndex))>-1}else{forOwn(collection,function(value){if(++index>=fromIndex){return!(result=value===target)}})}return result}var countBy=createAggregator(function(result,value,key){hasOwnProperty.call(result,key)?result[key]++:result[key]=1});function every(collection,callback,thisArg){var result=true;callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){if(!(result=!!callback(collection[index],index,collection))){break}}}else{forOwn(collection,function(value,index,collection){return result=!!callback(value,index,collection)})}return result}function filter(collection,callback,thisArg){var result=[];callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];if(callback(value,index,collection)){result.push(value)}}}else{forOwn(collection,function(value,index,collection){if(callback(value,index,collection)){result.push(value)}})}return result}function find(collection,callback,thisArg){callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){var value=collection[index];if(callback(value,index,collection)){return value}}}else{var result;forOwn(collection,function(value,index,collection){if(callback(value,index,collection)){result=value;return false}});return result}}function findLast(collection,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);forEachRight(collection,function(value,index,collection){if(callback(value,index,collection)){result=value;return false}});return result}function forEach(collection,callback,thisArg){var index=-1,length=collection?collection.length:0;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);if(typeof length=="number"){while(++index<length){if(callback(collection[index],index,collection)===false){break}}}else{forOwn(collection,callback)}return collection}function forEachRight(collection,callback,thisArg){var length=collection?collection.length:0;callback=callback&&typeof thisArg=="undefined"?callback:baseCreateCallback(callback,thisArg,3);if(typeof length=="number"){while(length--){if(callback(collection[length],length,collection)===false){break}}}else{var props=keys(collection);length=props.length;forOwn(collection,function(value,key,collection){key=props?props[--length]:--length;return callback(collection[key],key,collection)})}return collection}var groupBy=createAggregator(function(result,value,key){(hasOwnProperty.call(result,key)?result[key]:result[key]=[]).push(value)});var indexBy=createAggregator(function(result,value,key){result[key]=value});function invoke(collection,methodName){var args=slice(arguments,2),index=-1,isFunc=typeof methodName=="function",length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);forEach(collection,function(value){result[++index]=(isFunc?methodName:value[methodName]).apply(value,args)});return result}function map(collection,callback,thisArg){var index=-1,length=collection?collection.length:0;callback=lodash.createCallback(callback,thisArg,3);if(typeof length=="number"){var result=Array(length);while(++index<length){result[index]=callback(collection[index],index,collection)}}else{result=[];forOwn(collection,function(value,key,collection){result[++index]=callback(value,key,collection)
+})}return result}function max(collection,callback,thisArg){var computed=-Infinity,result=computed;if(typeof callback!="function"&&thisArg&&thisArg[callback]===collection){callback=null}if(callback==null&&isArray(collection)){var index=-1,length=collection.length;while(++index<length){var value=collection[index];if(value>result){result=value}}}else{callback=callback==null&&isString(collection)?charAtCallback:lodash.createCallback(callback,thisArg,3);forEach(collection,function(value,index,collection){var current=callback(value,index,collection);if(current>computed){computed=current;result=value}})}return result}function min(collection,callback,thisArg){var computed=Infinity,result=computed;if(typeof callback!="function"&&thisArg&&thisArg[callback]===collection){callback=null}if(callback==null&&isArray(collection)){var index=-1,length=collection.length;while(++index<length){var value=collection[index];if(value<result){result=value}}}else{callback=callback==null&&isString(collection)?charAtCallback:lodash.createCallback(callback,thisArg,3);forEach(collection,function(value,index,collection){var current=callback(value,index,collection);if(current<computed){computed=current;result=value}})}return result}var pluck=map;function reduce(collection,callback,accumulator,thisArg){if(!collection)return accumulator;var noaccum=arguments.length<3;callback=lodash.createCallback(callback,thisArg,4);var index=-1,length=collection.length;if(typeof length=="number"){if(noaccum){accumulator=collection[++index]}while(++index<length){accumulator=callback(accumulator,collection[index],index,collection)}}else{forOwn(collection,function(value,index,collection){accumulator=noaccum?(noaccum=false,value):callback(accumulator,value,index,collection)})}return accumulator}function reduceRight(collection,callback,accumulator,thisArg){var noaccum=arguments.length<3;callback=lodash.createCallback(callback,thisArg,4);forEachRight(collection,function(value,index,collection){accumulator=noaccum?(noaccum=false,value):callback(accumulator,value,index,collection)});return accumulator}function reject(collection,callback,thisArg){callback=lodash.createCallback(callback,thisArg,3);return filter(collection,function(value,index,collection){return!callback(value,index,collection)})}function sample(collection,n,guard){if(collection&&typeof collection.length!="number"){collection=values(collection)}if(n==null||guard){return collection?collection[baseRandom(0,collection.length-1)]:undefined}var result=shuffle(collection);result.length=nativeMin(nativeMax(0,n),result.length);return result}function shuffle(collection){var index=-1,length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);forEach(collection,function(value){var rand=baseRandom(0,++index);result[index]=result[rand];result[rand]=value});return result}function size(collection){var length=collection?collection.length:0;return typeof length=="number"?length:keys(collection).length}function some(collection,callback,thisArg){var result;callback=lodash.createCallback(callback,thisArg,3);var index=-1,length=collection?collection.length:0;if(typeof length=="number"){while(++index<length){if(result=callback(collection[index],index,collection)){break}}}else{forOwn(collection,function(value,index,collection){return!(result=callback(value,index,collection))})}return!!result}function sortBy(collection,callback,thisArg){var index=-1,isArr=isArray(callback),length=collection?collection.length:0,result=Array(typeof length=="number"?length:0);if(!isArr){callback=lodash.createCallback(callback,thisArg,3)}forEach(collection,function(value,key,collection){var object=result[++index]=getObject();if(isArr){object.criteria=map(callback,function(key){return value[key]})}else{(object.criteria=getArray())[0]=callback(value,key,collection)}object.index=index;object.value=value});length=result.length;result.sort(compareAscending);while(length--){var object=result[length];result[length]=object.value;if(!isArr){releaseArray(object.criteria)}releaseObject(object)}return result}function toArray(collection){if(collection&&typeof collection.length=="number"){return slice(collection)}return values(collection)}var where=filter;function compact(array){var index=-1,length=array?array.length:0,result=[];while(++index<length){var value=array[index];if(value){result.push(value)}}return result}function difference(array){return baseDifference(array,baseFlatten(arguments,true,true,1))}function findIndex(array,callback,thisArg){var index=-1,length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(++index<length){if(callback(array[index],index,array)){return index}}return-1}function findLastIndex(array,callback,thisArg){var length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(length--){if(callback(array[length],length,array)){return length}}return-1}function first(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=-1;callback=lodash.createCallback(callback,thisArg,3);while(++index<length&&callback(array[index],index,array)){n++}}else{n=callback;if(n==null||thisArg){return array?array[0]:undefined}}return slice(array,0,nativeMin(nativeMax(0,n),length))}function flatten(array,isShallow,callback,thisArg){if(typeof isShallow!="boolean"&&isShallow!=null){thisArg=callback;callback=typeof isShallow!="function"&&thisArg&&thisArg[isShallow]===array?null:isShallow;isShallow=false}if(callback!=null){array=map(array,callback,thisArg)}return baseFlatten(array,isShallow)}function indexOf(array,value,fromIndex){if(typeof fromIndex=="number"){var length=array?array.length:0;fromIndex=fromIndex<0?nativeMax(0,length+fromIndex):fromIndex||0}else if(fromIndex){var index=sortedIndex(array,value);return array[index]===value?index:-1}return baseIndexOf(array,value,fromIndex)}function initial(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=length;callback=lodash.createCallback(callback,thisArg,3);while(index--&&callback(array[index],index,array)){n++}}else{n=callback==null||thisArg?1:callback||n}return slice(array,0,nativeMin(nativeMax(0,length-n),length))}function intersection(){var args=[],argsIndex=-1,argsLength=arguments.length,caches=getArray(),indexOf=getIndexOf(),trustIndexOf=indexOf===baseIndexOf,seen=getArray();while(++argsIndex<argsLength){var value=arguments[argsIndex];if(isArray(value)||isArguments(value)){args.push(value);caches.push(trustIndexOf&&value.length>=largeArraySize&&createCache(argsIndex?args[argsIndex]:seen))}}var array=args[0],index=-1,length=array?array.length:0,result=[];outer:while(++index<length){var cache=caches[0];value=array[index];if((cache?cacheIndexOf(cache,value):indexOf(seen,value))<0){argsIndex=argsLength;(cache||seen).push(value);while(--argsIndex){cache=caches[argsIndex];if((cache?cacheIndexOf(cache,value):indexOf(args[argsIndex],value))<0){continue outer}}result.push(value)}}while(argsLength--){cache=caches[argsLength];if(cache){releaseObject(cache)}}releaseArray(caches);releaseArray(seen);return result}function last(array,callback,thisArg){var n=0,length=array?array.length:0;if(typeof callback!="number"&&callback!=null){var index=length;callback=lodash.createCallback(callback,thisArg,3);while(index--&&callback(array[index],index,array)){n++}}else{n=callback;if(n==null||thisArg){return array?array[length-1]:undefined}}return slice(array,nativeMax(0,length-n))}function lastIndexOf(array,value,fromIndex){var index=array?array.length:0;if(typeof fromIndex=="number"){index=(fromIndex<0?nativeMax(0,index+fromIndex):nativeMin(fromIndex,index-1))+1}while(index--){if(array[index]===value){return index}}return-1}function pull(array){var args=arguments,argsIndex=0,argsLength=args.length,length=array?array.length:0;while(++argsIndex<argsLength){var index=-1,value=args[argsIndex];while(++index<length){if(array[index]===value){splice.call(array,index--,1);length--}}}return array}function range(start,end,step){start=+start||0;step=typeof step=="number"?step:+step||1;if(end==null){end=start;start=0}var index=-1,length=nativeMax(0,ceil((end-start)/(step||1))),result=Array(length);while(++index<length){result[index]=start;start+=step}return result}function remove(array,callback,thisArg){var index=-1,length=array?array.length:0,result=[];callback=lodash.createCallback(callback,thisArg,3);while(++index<length){var value=array[index];if(callback(value,index,array)){result.push(value);splice.call(array,index--,1);length--}}return result}function rest(array,callback,thisArg){if(typeof callback!="number"&&callback!=null){var n=0,index=-1,length=array?array.length:0;callback=lodash.createCallback(callback,thisArg,3);while(++index<length&&callback(array[index],index,array)){n++}}else{n=callback==null||thisArg?1:nativeMax(0,callback)}return slice(array,n)}function sortedIndex(array,value,callback,thisArg){var low=0,high=array?array.length:low;callback=callback?lodash.createCallback(callback,thisArg,1):identity;value=callback(value);while(low<high){var mid=low+high>>>1;callback(array[mid])<value?low=mid+1:high=mid}return low}function union(){return baseUniq(baseFlatten(arguments,true,true))}function uniq(array,isSorted,callback,thisArg){if(typeof isSorted!="boolean"&&isSorted!=null){thisArg=callback;callback=typeof isSorted!="function"&&thisArg&&thisArg[isSorted]===array?null:isSorted;isSorted=false}if(callback!=null){callback=lodash.createCallback(callback,thisArg,3)}return baseUniq(array,isSorted,callback)}function without(array){return baseDifference(array,slice(arguments,1))}function xor(){var index=-1,length=arguments.length;while(++index<length){var array=arguments[index];if(isArray(array)||isArguments(array)){var result=result?baseUniq(baseDifference(result,array).concat(baseDifference(array,result))):array}}return result||[]}function zip(){var array=arguments.length>1?arguments:arguments[0],index=-1,length=array?max(pluck(array,"length")):0,result=Array(length<0?0:length);while(++index<length){result[index]=pluck(array,index)}return result}function zipObject(keys,values){var index=-1,length=keys?keys.length:0,result={};if(!values&&length&&!isArray(keys[0])){values=[]}while(++index<length){var key=keys[index];if(values){result[key]=values[index]}else if(key){result[key[0]]=key[1]}}return result}function after(n,func){if(!isFunction(func)){throw new TypeError}return function(){if(--n<1){return func.apply(this,arguments)}}}function bind(func,thisArg){return arguments.length>2?createWrapper(func,17,slice(arguments,2),null,thisArg):createWrapper(func,1,null,null,thisArg)}function bindAll(object){var funcs=arguments.length>1?baseFlatten(arguments,true,false,1):functions(object),index=-1,length=funcs.length;while(++index<length){var key=funcs[index];object[key]=createWrapper(object[key],1,null,null,object)}return object}function bindKey(object,key){return arguments.length>2?createWrapper(key,19,slice(arguments,2),null,object):createWrapper(key,3,null,null,object)}function compose(){var funcs=arguments,length=funcs.length;while(length--){if(!isFunction(funcs[length])){throw new TypeError}}return function(){var args=arguments,length=funcs.length;while(length--){args=[funcs[length].apply(this,args)]}return args[0]}}function curry(func,arity){arity=typeof arity=="number"?arity:+arity||func.length;return createWrapper(func,4,null,null,null,arity)}function debounce(func,wait,options){var args,maxTimeoutId,result,stamp,thisArg,timeoutId,trailingCall,lastCalled=0,maxWait=false,trailing=true;if(!isFunction(func)){throw new TypeError}wait=nativeMax(0,wait)||0;if(options===true){var leading=true;trailing=false}else if(isObject(options)){leading=options.leading;maxWait="maxWait"in options&&(nativeMax(wait,options.maxWait)||0);trailing="trailing"in options?options.trailing:trailing}var delayed=function(){var remaining=wait-(now()-stamp);if(remaining<=0){if(maxTimeoutId){clearTimeout(maxTimeoutId)}var isCalled=trailingCall;maxTimeoutId=timeoutId=trailingCall=undefined;if(isCalled){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=null}}}else{timeoutId=setTimeout(delayed,remaining)}};var maxDelayed=function(){if(timeoutId){clearTimeout(timeoutId)}maxTimeoutId=timeoutId=trailingCall=undefined;if(trailing||maxWait!==wait){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=null}}};return function(){args=arguments;stamp=now();thisArg=this;trailingCall=trailing&&(timeoutId||!leading);if(maxWait===false){var leadingCall=leading&&!timeoutId}else{if(!maxTimeoutId&&!leading){lastCalled=stamp}var remaining=maxWait-(stamp-lastCalled),isCalled=remaining<=0;if(isCalled){if(maxTimeoutId){maxTimeoutId=clearTimeout(maxTimeoutId)}lastCalled=stamp;result=func.apply(thisArg,args)}else if(!maxTimeoutId){maxTimeoutId=setTimeout(maxDelayed,remaining)}}if(isCalled&&timeoutId){timeoutId=clearTimeout(timeoutId)}else if(!timeoutId&&wait!==maxWait){timeoutId=setTimeout(delayed,wait)}if(leadingCall){isCalled=true;result=func.apply(thisArg,args)}if(isCalled&&!timeoutId&&!maxTimeoutId){args=thisArg=null}return result}}function defer(func){if(!isFunction(func)){throw new TypeError}var args=slice(arguments,1);return setTimeout(function(){func.apply(undefined,args)},1)}function delay(func,wait){if(!isFunction(func)){throw new TypeError}var args=slice(arguments,2);return setTimeout(function(){func.apply(undefined,args)},wait)}function memoize(func,resolver){if(!isFunction(func)){throw new TypeError}var memoized=function(){var cache=memoized.cache,key=resolver?resolver.apply(this,arguments):keyPrefix+arguments[0];return hasOwnProperty.call(cache,key)?cache[key]:cache[key]=func.apply(this,arguments)};memoized.cache={};return memoized}function once(func){var ran,result;if(!isFunction(func)){throw new TypeError}return function(){if(ran){return result}ran=true;result=func.apply(this,arguments);func=null;return result}}function partial(func){return createWrapper(func,16,slice(arguments,1))}function partialRight(func){return createWrapper(func,32,null,slice(arguments,1))}function throttle(func,wait,options){var leading=true,trailing=true;if(!isFunction(func)){throw new TypeError}if(options===false){leading=false}else if(isObject(options)){leading="leading"in options?options.leading:leading;trailing="trailing"in options?options.trailing:trailing}debounceOptions.leading=leading;debounceOptions.maxWait=wait;debounceOptions.trailing=trailing;return debounce(func,wait,debounceOptions)}function wrap(value,wrapper){return createWrapper(wrapper,16,[value])}function constant(value){return function(){return value}}function createCallback(func,thisArg,argCount){var type=typeof func;if(func==null||type=="function"){return baseCreateCallback(func,thisArg,argCount)}if(type!="object"){return property(func)}var props=keys(func),key=props[0],a=func[key];if(props.length==1&&a===a&&!isObject(a)){return function(object){var b=object[key];return a===b&&(a!==0||1/a==1/b)}}return function(object){var length=props.length,result=false;while(length--){if(!(result=baseIsEqual(object[props[length]],func[props[length]],null,true))){break}}return result}}function escape(string){return string==null?"":String(string).replace(reUnescapedHtml,escapeHtmlChar)}function identity(value){return value}function mixin(object,source,options){var chain=true,methodNames=source&&functions(source);if(!source||!options&&!methodNames.length){if(options==null){options=source}ctor=lodashWrapper;source=object;object=lodash;methodNames=functions(source)}if(options===false){chain=false}else if(isObject(options)&&"chain"in options){chain=options.chain}var ctor=object,isFunc=isFunction(ctor);forEach(methodNames,function(methodName){var func=object[methodName]=source[methodName];if(isFunc){ctor.prototype[methodName]=function(){var chainAll=this.__chain__,value=this.__wrapped__,args=[value];push.apply(args,arguments);var result=func.apply(object,args);if(chain||chainAll){if(value===result&&isObject(result)){return this}result=new ctor(result);result.__chain__=chainAll}return result}}})}function noConflict(){context._=oldDash;return this}function noop(){}var now=isNative(now=Date.now)&&now||function(){return(new Date).getTime()};var parseInt=nativeParseInt(whitespace+"08")==8?nativeParseInt:function(value,radix){return nativeParseInt(isString(value)?value.replace(reLeadingSpacesAndZeros,""):value,radix||0)};function property(key){return function(object){return object[key]}}function random(min,max,floating){var noMin=min==null,noMax=max==null;if(floating==null){if(typeof min=="boolean"&&noMax){floating=min;min=1}else if(!noMax&&typeof max=="boolean"){floating=max;noMax=true}}if(noMin&&noMax){max=1}min=+min||0;if(noMax){max=min;min=0}else{max=+max||0}if(floating||min%1||max%1){var rand=nativeRandom();return nativeMin(min+rand*(max-min+parseFloat("1e-"+((rand+"").length-1))),max)}return baseRandom(min,max)}function result(object,key){if(object){var value=object[key];return isFunction(value)?object[key]():value}}function template(text,data,options){var settings=lodash.templateSettings;text=String(text||"");options=defaults({},options,settings);var imports=defaults({},options.imports,settings.imports),importsKeys=keys(imports),importsValues=values(imports);var isEvaluating,index=0,interpolate=options.interpolate||reNoMatch,source="__p += '";var reDelimiters=RegExp((options.escape||reNoMatch).source+"|"+interpolate.source+"|"+(interpolate===reInterpolate?reEsTemplate:reNoMatch).source+"|"+(options.evaluate||reNoMatch).source+"|$","g");text.replace(reDelimiters,function(match,escapeValue,interpolateValue,esTemplateValue,evaluateValue,offset){interpolateValue||(interpolateValue=esTemplateValue);source+=text.slice(index,offset).replace(reUnescapedString,escapeStringChar);if(escapeValue){source+="' +\n__e("+escapeValue+") +\n'"}if(evaluateValue){isEvaluating=true;source+="';\n"+evaluateValue+";\n__p += '"}if(interpolateValue){source+="' +\n((__t = ("+interpolateValue+")) == null ? '' : __t) +\n'"}index=offset+match.length;return match});source+="';\n";var variable=options.variable,hasVariable=variable;if(!hasVariable){variable="obj";source="with ("+variable+") {\n"+source+"\n}\n"}source=(isEvaluating?source.replace(reEmptyStringLeading,""):source).replace(reEmptyStringMiddle,"$1").replace(reEmptyStringTrailing,"$1;");source="function("+variable+") {\n"+(hasVariable?"":variable+" || ("+variable+" = {});\n")+"var __t, __p = '', __e = _.escape"+(isEvaluating?", __j = Array.prototype.join;\n"+"function print() { __p += __j.call(arguments, '') }\n":";\n")+source+"return __p\n}";var sourceURL="\n/*\n//# sourceURL="+(options.sourceURL||"/lodash/template/source["+templateCounter++ +"]")+"\n*/";try{var result=Function(importsKeys,"return "+source+sourceURL).apply(undefined,importsValues)}catch(e){e.source=source;throw e}if(data){return result(data)}result.source=source;return result}function times(n,callback,thisArg){n=(n=+n)>-1?n:0;var index=-1,result=Array(n);callback=baseCreateCallback(callback,thisArg,1);while(++index<n){result[index]=callback(index)}return result}function unescape(string){return string==null?"":String(string).replace(reEscapedHtml,unescapeHtmlChar)}function uniqueId(prefix){var id=++idCounter;return String(prefix==null?"":prefix)+id}function chain(value){value=new lodashWrapper(value);value.__chain__=true;return value}function tap(value,interceptor){interceptor(value);return value}function wrapperChain(){this.__chain__=true;return this}function wrapperToString(){return String(this.__wrapped__)}function wrapperValueOf(){return this.__wrapped__}lodash.after=after;lodash.assign=assign;lodash.at=at;lodash.bind=bind;lodash.bindAll=bindAll;lodash.bindKey=bindKey;lodash.chain=chain;lodash.compact=compact;lodash.compose=compose;lodash.constant=constant;lodash.countBy=countBy;lodash.create=create;lodash.createCallback=createCallback;lodash.curry=curry;lodash.debounce=debounce;lodash.defaults=defaults;lodash.defer=defer;lodash.delay=delay;lodash.difference=difference;lodash.filter=filter;lodash.flatten=flatten;lodash.forEach=forEach;lodash.forEachRight=forEachRight;lodash.forIn=forIn;lodash.forInRight=forInRight;lodash.forOwn=forOwn;lodash.forOwnRight=forOwnRight;lodash.functions=functions;lodash.groupBy=groupBy;lodash.indexBy=indexBy;lodash.initial=initial;lodash.intersection=intersection;lodash.invert=invert;lodash.invoke=invoke;lodash.keys=keys;lodash.map=map;lodash.mapValues=mapValues;lodash.max=max;lodash.memoize=memoize;lodash.merge=merge;lodash.min=min;lodash.omit=omit;lodash.once=once;lodash.pairs=pairs;lodash.partial=partial;lodash.partialRight=partialRight;lodash.pick=pick;lodash.pluck=pluck;lodash.property=property;lodash.pull=pull;lodash.range=range;lodash.reject=reject;lodash.remove=remove;lodash.rest=rest;lodash.shuffle=shuffle;lodash.sortBy=sortBy;lodash.tap=tap;lodash.throttle=throttle;lodash.times=times;lodash.toArray=toArray;lodash.transform=transform;lodash.union=union;lodash.uniq=uniq;lodash.values=values;lodash.where=where;lodash.without=without;lodash.wrap=wrap;lodash.xor=xor;lodash.zip=zip;lodash.zipObject=zipObject;lodash.collect=map;lodash.drop=rest;lodash.each=forEach;lodash.eachRight=forEachRight;lodash.extend=assign;lodash.methods=functions;lodash.object=zipObject;lodash.select=filter;lodash.tail=rest;lodash.unique=uniq;lodash.unzip=zip;mixin(lodash);lodash.clone=clone;lodash.cloneDeep=cloneDeep;lodash.contains=contains;lodash.escape=escape;lodash.every=every;lodash.find=find;lodash.findIndex=findIndex;lodash.findKey=findKey;lodash.findLast=findLast;lodash.findLastIndex=findLastIndex;lodash.findLastKey=findLastKey;lodash.has=has;lodash.identity=identity;lodash.indexOf=indexOf;lodash.isArguments=isArguments;lodash.isArray=isArray;lodash.isBoolean=isBoolean;lodash.isDate=isDate;lodash.isElement=isElement;lodash.isEmpty=isEmpty;lodash.isEqual=isEqual;lodash.isFinite=isFinite;lodash.isFunction=isFunction;lodash.isNaN=isNaN;lodash.isNull=isNull;lodash.isNumber=isNumber;lodash.isObject=isObject;lodash.isPlainObject=isPlainObject;lodash.isRegExp=isRegExp;lodash.isString=isString;lodash.isUndefined=isUndefined;lodash.lastIndexOf=lastIndexOf;lodash.mixin=mixin;lodash.noConflict=noConflict;lodash.noop=noop;lodash.now=now;lodash.parseInt=parseInt;lodash.random=random;lodash.reduce=reduce;lodash.reduceRight=reduceRight;lodash.result=result;lodash.runInContext=runInContext;lodash.size=size;lodash.some=some;lodash.sortedIndex=sortedIndex;lodash.template=template;lodash.unescape=unescape;lodash.uniqueId=uniqueId;lodash.all=every;lodash.any=some;lodash.detect=find;lodash.findWhere=find;lodash.foldl=reduce;lodash.foldr=reduceRight;lodash.include=contains;lodash.inject=reduce;mixin(function(){var source={};forOwn(lodash,function(func,methodName){if(!lodash.prototype[methodName]){source[methodName]=func}});return source}(),false);lodash.first=first;lodash.last=last;lodash.sample=sample;lodash.take=first;lodash.head=first;forOwn(lodash,function(func,methodName){var callbackable=methodName!=="sample";if(!lodash.prototype[methodName]){lodash.prototype[methodName]=function(n,guard){var chainAll=this.__chain__,result=func(this.__wrapped__,n,guard);return!chainAll&&(n==null||guard&&!(callbackable&&typeof n=="function"))?result:new lodashWrapper(result,chainAll)}}});lodash.VERSION="2.4.1";lodash.prototype.chain=wrapperChain;lodash.prototype.toString=wrapperToString;lodash.prototype.value=wrapperValueOf;lodash.prototype.valueOf=wrapperValueOf;forEach(["join","pop","shift"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){var chainAll=this.__chain__,result=func.apply(this.__wrapped__,arguments);return chainAll?new lodashWrapper(result,chainAll):result}});forEach(["push","reverse","sort","unshift"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){func.apply(this.__wrapped__,arguments);return this}});forEach(["concat","slice","splice"],function(methodName){var func=arrayRef[methodName];lodash.prototype[methodName]=function(){return new lodashWrapper(func.apply(this.__wrapped__,arguments),this.__chain__)}});return lodash}var _=runInContext();if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){root._=_;define(function(){return _})}else if(freeExports&&freeModule){if(moduleExports){(freeModule.exports=_)._=_}else{freeExports._=_}}else{root._=_}}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}]},{},[1])(1)});
\ No newline at end of file
diff --git a/lib/version.js b/lib/version.js
index 81a49242..c9a130ce 100644
--- a/lib/version.js
+++ b/lib/version.js
@@ -1 +1 @@
-module.exports = "0.6.4-pre";
+module.exports = "0.6.4";
diff --git a/package.json b/package.json
index 41e1a6e7..7c8bdc9a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dagre",
-  "version": "0.6.4-pre",
+  "version": "0.6.4",
   "description": "Graph layout for JavaScript",
   "author": "Chris Pettitt <cpettitt@gmail.com>",
   "main": "index.js",
@@ -36,4 +36,4 @@
     "url": "https://github.com/cpettitt/dagre.git"
   },
   "license": "MIT"
-}
\ No newline at end of file
+}