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bylaw_infractions.js
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bylaw_infractions.js
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document.addEventListener("DOMContentLoaded", function dashboard() {
//Set up loading spinner
var opts = {
lines: 13,
length: 22,
width: 9,
radius: 30,
corners: 1,
rotate: 2,
direction: 1,
speed: 1,
trail: 60,
shadow: false,
hwaccel: false,
className: 'spinner',
zIndex: 2e9,
top:'17%',
left: '50%'
};
var target = document.getElementById("spinner");
var spinner = new Spinner(opts).spin(target);
queue()
.defer(d3.json, "data/Edmonton2.json") //neighbourhoodsGejson
.defer(d3.json, "data/data.json") //datajson
.await(renderCharts);
function renderCharts(error, neighbourhoodsGejson, dataJson) {
if(error) throw error;
//cleaned data
var data = dataJson.data;
//Crossfilter instance
var ndx = crossfilter(data);
//Define values to be used by chart(s)
var chartHeightScale = 0.58,
pieXscale = 1.41,
pieRscale = chartHeightScale * 0.5,
pieInnerRscale = pieRscale * 0.52,
monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
countSum = data.map(function(d) { return d.COUNT; })
.reduce(function(sum, value) { return sum + value; }, 0 ),
map, info, mapReset, title, texts, chartTexts, slideMenu;
//Colors and color scales
//Got the colors from http://colorbrewer2.org
var pieColors = ["#66c2a5", "#fc8d62", "#8da0cb", "#e78ac3", "#a6d854"],
mapColors = ["#a6cee3","#1f78b4","#b2df8a","#33a02c","#fb9a99","#e31a1c","#fdbf6f","#ff7f00"],
bubbleColors = ["#a6cee3", "#1f78b4", "#b2df8a", "#33a02c"],
pieScaleColors = d3.scale.quantize().domain([0, pieColors.length - 1]).range(pieColors),
bubbleScaleColors = d3.scale.quantize().domain([0, bubbleColors.length - 1]).range(bubbleColors);
//Define Dimensions
var neighbourhoodsDim = ndx.dimension(function(d) { return d.NEIGHBOURHOOD; }),
complaintsDim = ndx.dimension(function(d) { return d.COMPLAINT; }),
monthDim = ndx.dimension(function(d) { return monthNames[d["MONTH_NUMBER"] - 1]; }),
yearDim = ndx.dimension(function(d) { return d.YEAR; }),
initiatorDim = ndx.dimension(function(d) { return [d["INITIATED_BY"], d.STATUS]; });
//Define groups
var groupByCount = function(d) { return d.COUNT; },
neighbourhoodsGroup = neighbourhoodsDim.group().reduceSum(groupByCount),
complaintsGroup = complaintsDim.group().reduceSum(groupByCount),
monthGroup = monthDim.group().reduceSum(groupByCount),
yearGroup = yearDim.group().reduceSum(groupByCount),
statusGroup = initiatorDim.group().reduceSum(groupByCount),
sumofAllInfractions = ndx.groupAll().reduceSum(groupByCount);
//Charts, selections, and filterCount(no var to be detected by reset link)
//find better solution to make code secure("use strict wont allow this")
dcMap = dc.leafletChoroplethChart("#map-plot"),
pie = dc.pieChart("#pie-plot"),
barChart = dc.barChart("#bar-chart"),
rowChart = dc.rowChart("#row-chart"),
bubbleChart = dc.bubbleCloud("#bubble-plot");
var recordCounter = dc.dataCount("#records-count"),
charts, neighbourSelections;
recordCounter.dimension(ndx)
.group(ndx.groupAll())
.html({some:'<strong>%filter-count</strong> selected out of <strong>%total-count</strong> records. | '+
'<a href= "javascript:dc.filterAll(); dc.redrawAll();">Reset All</a>',
all: 'All records selected. Please click on the chart(s) to apply filters.'
});
recordCounter.render();
charts = [dcMap, pie, barChart, rowChart, bubbleChart];
//add filter listerner to update sum and percentage text
// for all the charts
charts.forEach(statsUpdate);
dcMap
.dimension(neighbourhoodsDim)
.group(neighbourhoodsGroup)
.mapOptions({
center: [53.5250, -113.4448],
zoom: 10,
scrollWheelZoom: false,
minZoom: 10,
maxZoom: 16,
touchZoom: false
})
.geojson(neighbourhoodsGejson)
.valueAccessor(function(d) { return d.value; })
.colors(mapColors)
.colorAccessor(function(d) { return d.value; })
.featureKeyAccessor(function(feature) { return feature.properties.name; })
.legend(dc.leafletLegend().position("bottomright"))
.on("renderlet.dcMap", function infractionMapInfoUpdate(chart, filter) {
eventTrigger(function updater() {
//get all the feature layers
var eArray = Object.values(chart.map()._layers)
.filter(function(e) { if( e.hasOwnProperty("feature") ) return e; } );
//get path(layer) popupContent and update the map info
eArray.forEach(function(layer) {
chart.map()._layers[layer._leaflet_id].on("mouseover", function() {
info.update(layer);
});
});
});
})
.on("preRender.dcMap", colorUpdate)
.on("preRedraw.dcMap", colorUpdate);
rowChart.dimension(yearDim)
.group(yearGroup)
.height(setHeight(rowChart))
.margins(chartMargin(rowChart, {top: 0.02, right: 0.02, bottom: 0.10, left:0.02}))
.useViewBoxResizing(true)
.label(function(d) { return d.key; })
.title(function(d) { return d.value.toLocaleString(); })
.elasticX(true)
.on("pretransition.xAxis", fontSizeUpdate("row-chart"));
rowChart.xAxis().ticks(6);
barChart.dimension(monthDim)
.group(monthGroup)
.height(setHeight(barChart))
.margins(chartMargin(barChart, {top: 0.02, right: 0.02, bottom: 0.10, left:0.12}))
.useViewBoxResizing(true)
.title(function(d) { return d.value.toLocaleString(); })
.x(d3.scale.ordinal().domain(monthNames))
.xUnits(dc.units.ordinal)
.elasticY(true)
.on("pretransition.Axis", fontSizeUpdate("bar-chart"));
barChart.xAxis().ticks(6);
pie
.dimension(complaintsDim)
.group(complaintsGroup)
.height(setHeight(pie))
.cx(pie.width() / pieXscale)
.radius(pie.width() * pieRscale)
.innerRadius(pie.width() * pieInnerRscale)
.useViewBoxResizing(true)
.label(function(d) { return ((d.value / countSum) * 100).toFixed(3) + '%'; })
.title(function(d) { return d.key + ': ' + ((d.value / countSum) * 100).toFixed(3) + '%'; })
.colorAccessor(function(d, i) {return i; })
.colors(pieScaleColors)
.legend(dc.legend()
.y(Math.round(pie.height() * 0.02 , 1))
.gap(Math.round(pie.height() * 0.02 , 1))
)
.on("pretransition.legend", function legendDynamicText(chart) {
eventTrigger(function textUpdater() {
//https://github.com/dc-js/dc.js/blob/master/web/examples/pie-external-labels.html
//solution for adding dynamic text to legend
chart.selectAll(".dc-legend-item text")
.text('')
.append("tspan")
.text(function(d) { return d.name; })
.style("font-size", Math.round(chart.height() * 0.04, 1))
.append("tspan")
.attr('x', Math.round(pie.width() * 0.41, 1))
.attr('text-anchor', 'end')
.text(function(d) { return d.data.toLocaleString(); })
.style("font-size", Math.round(chart.height() * 0.04, 1));
});
});
bubbleChart
.dimension(initiatorDim)
.group(statusGroup)
.height(setHeight(bubbleChart))
.useViewBoxResizing(true)
.margins(chartMargin(barChart, {top: 0.15, right: 0.1428, bottom: 0.15, left: 0.1428}))
.clipPadding(55)
.radiusValueAccessor(function(d) { return d.value; })
.maxBubbleRelativeSize(0.24)
.r(d3.scale.linear()
.domain( d3.extent( bubbleChart.group().all(), bubbleChart.valueAccessor() ) )
)
.elasticRadius(true)
.x(d3.scale.ordinal())
.label(function(d) { return d.key[0]+": "+d.key[1]; })
.title(function(d) { return '('+d.key[0]+')'+d.key[1] + ': ' + d.value.toLocaleString(); })
.colorAccessor(function(d, i) { return i; })
.colors(bubbleScaleColors);
dc.renderAll();
//Choropleth map
map = dcMap.map();
//reset map location when window is resized
map.on("resize", function(e) { map.setZoom(10).getBounds().getCenter(); });
//----------------------------Additions to leaflet map----------------------------
//SlideMenu, dc reset, and map info
//https://github.com/unbam/Leaflet.SlideMenu
title = '<h3>Neighbourhood Selection</h3>',
contents = '<div id="selection" class="svg-container"></div>',
slideMenu = L.control.slideMenu('', {position: 'topright', menuposition: 'topright', width: '70%', height: '45%', delay: '50'}).addTo(map);
slideMenu.setContents(title + contents);
//http://leafletjs.com/examples/choropleth.html
info = L.control({position: "bottomleft"});
info.onAdd = function(map) {
this._div = L.DomUtil.create("div", "myinfo");
this.update();
return this._div;
};
info.update = function(e) {
this._div.innerHTML = "<span><strong>Neighbourhood Infractions</strong></span><br>" + (e ?
"<span>"+e._popupContent+"</span>": "Hover over a map region");
};
info.addTo(map);
neighbourSelections = dc.selectMenu("#selection");
//add filter listerner to update sum and percentage text
statsUpdate(neighbourSelections);
neighbourSelections.dimension(neighbourhoodsDim)
.group(neighbourhoodsGroup)
.multiple(true)
.numberVisible(11)
.controlsUseVisibility(true)
.order(function (a,b) { return a.value > b.value ? 1 : b.value > a.value ? -1 : 0; });
neighbourSelections.render();
//----------------------------Additions to leaflet map----------------------------
//---------------------------Addition to Pie Chart Sum and Percentage Stats---------------------------
texts = [
{
class: "stats-title",
x: 0,
y: pie.height() * 0.97,
content: "Sum:",
"text-anchor": "start"
},
{
id: "sum",
x: pie.width() * 0.13,
y: pie.height() * 0.97,
content: sumofAllInfractions.value().toLocaleString(),
"text-anchor": "start",
"font-size": Math.round(pie.height() * 0.14, 1)
},
{
class: "stats-title",
x: pie.cx(),
y: pie.height() * 0.46,
content: "Percentage:",
"text-anchor": "middle",
},
{
id: "percent",
x: pie.cx(),
y: pie.height() * 0.58,
content: ((sumofAllInfractions.value()/countSum) * 100).toFixed(3),
"text-anchor": "middle",
"font-size": Math.round(pie.height() * 0.12, 1)
}
];
d3.select("#pie-plot svg")
.selectAll(".stats text")
.data(texts).enter()
.append("text")
.classed("stats", true)
.style( "font-size", function(d) { return d["font-size"] ? d["font-size"] : Math.round(pie.height() * 0.08, 1); } )
.text(function(d) { return d.content; })
.attr({
id: function(d) { return d.id ? d.id : ""; },
class: function(d) { return d.class ? d.class : ""; },
x: function(d) { return d.x; },
y: function(d) { return d.y; },
"text-anchor": function(d) { return d["text-anchor"]; }
});
//---------------------------Addition to Pie Chart Sum and Percentage Stats---------------------------
//------------Font Size for legend and label texts------------
chartTexts = [
{selector: "text.pie-slice" , scale: 0.05},
{selector: "text.row" , scale: 0.05},
{selector: "g.node text" , scale: 0.04}
];
chartTexts.forEach(function(text){textFontSize(text.selector, text.scale); });
//------------Font Size for axis and label texts------------
d3.select("#spinner").remove(); //remove spinner after files and charts are loaded
function setHeight(chart) { return chart.width() * chartHeightScale; };
function textFontSize(selector, scale) {
d3.selectAll(selector)
.style("font-size", Math.round(pie.height() * scale, 1));
};
function statsUpdate(chart) {
chart.on("filtered." + chart.chartID(), function() {
eventTrigger(function htmlUpdater() {
//update the sum text
d3.select("#sum").html( sumofAllInfractions.value().toLocaleString() );
//update the percent text
d3.select("#percent").html( ((sumofAllInfractions.value()/countSum) * 100).toFixed(3) );
});
});
};
function colorUpdate(chart, filter) {
eventTrigger(function() {
//update color domain to correspond with user filters
chart.calculateColorDomain( d3.extent(chart.group().all(), chart.valueAccessor()) );
});
};
function fontSizeUpdate(chartId) {
return function(chart, filter) {
eventTrigger(function sizeUpdater() {
chart.selectAll("#"+chartId+" g.tick text")
.style("font-size", Math.round(chart.height() * 0.05, 1));
});
};
};
function chartMargin(chart, margin) {
return {
top: Math.round(chart.height() * margin.top , 1),
right: Math.round(chart.width() * margin.right , 1),
bottom: Math.round(chart.height() * margin.bottom , 1),
left: Math.round(chart.width() * margin.left , 1)
};
};
function eventTrigger(func){
return dc.events.trigger(func);
};
}; //renderCharts
})//document.addEventListener