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feat: Region/Lasso Selections (#8988)
* jfkj * created new clean branch * chore: update schema [CI] * chore: update TOC [CI] * refactored lasso to region, added runtime tests * added examples * linted region test * chore: update schema [CI] * chore: update examples [CI] * updated example to fit v5 * chore: update examples [CI] * readded filter and mark for example test * chore: update examples [CI] * deleted unused images, adjusted selection fields for documentation * chore: update examples [CI] * fix: hardwire SELECTION_ID as the only valid field for regions * refactor: runtime tests to use hits object + regenerate resources * fix: for global region selections, hide marks for inactive units * test: expand runtime tests to cover faceted/repeated views * chore: update examples [CI] --------- Co-authored-by: Moritz Schöfl <moritz.schoefl@datavisyn.io> Co-authored-by: GitHub Actions Bot <vega-actions-bot@users.noreply.github.com> Co-authored-by: Moritz Heckmann <moritz.heckmann@datavisyn.io>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,220 @@ | ||
| { | ||
| "$schema": "https://vega.github.io/schema/vega/v5.json", | ||
| "background": "white", | ||
| "padding": 5, | ||
| "width": 200, | ||
| "height": 200, | ||
| "style": "cell", | ||
| "data": [ | ||
| { | ||
| "name": "brush_store", | ||
| "transform": [{"type": "collect", "sort": {"field": "_vgsid_"}}] | ||
| }, | ||
| { | ||
| "name": "source_0", | ||
| "url": "data/cars.json", | ||
| "format": {"type": "json"}, | ||
| "transform": [ | ||
| {"type": "identifier", "as": "_vgsid_"}, | ||
| { | ||
| "type": "filter", | ||
| "expr": "isValid(datum[\"Horsepower\"]) && isFinite(+datum[\"Horsepower\"]) && isValid(datum[\"Miles_per_Gallon\"]) && isFinite(+datum[\"Miles_per_Gallon\"])" | ||
| } | ||
| ] | ||
| } | ||
| ], | ||
| "signals": [ | ||
| { | ||
| "name": "unit", | ||
| "value": {}, | ||
| "on": [ | ||
| {"events": "mousemove", "update": "isTuple(group()) ? group() : unit"} | ||
| ] | ||
| }, | ||
| { | ||
| "name": "brush", | ||
| "update": "vlSelectionResolve(\"brush_store\", \"union\")" | ||
| }, | ||
| { | ||
| "name": "brush_tuple", | ||
| "on": [ | ||
| { | ||
| "events": [{"signal": "brush_screen_path"}], | ||
| "update": "vlSelectionTuples(intersectLasso(\"marks\", brush_screen_path, unit), {unit: \"\"})" | ||
| }, | ||
| {"events": [{"source": "view", "type": "dblclick"}], "update": "null"} | ||
| ] | ||
| }, | ||
| { | ||
| "name": "brush_screen_path", | ||
| "init": "[]", | ||
| "on": [ | ||
| { | ||
| "events": {"source": "scope", "type": "mousedown"}, | ||
| "update": "[[x(unit), y(unit)]]" | ||
| }, | ||
| { | ||
| "events": { | ||
| "source": "window", | ||
| "type": "mousemove", | ||
| "consume": true, | ||
| "between": [ | ||
| {"source": "scope", "type": "mousedown"}, | ||
| {"source": "window", "type": "mouseup"} | ||
| ] | ||
| }, | ||
| "update": "lassoAppend(brush_screen_path, clamp(x(unit), 0, width), clamp(y(unit), 0, height))" | ||
| } | ||
| ] | ||
| }, | ||
| { | ||
| "name": "brush_modify", | ||
| "on": [ | ||
| { | ||
| "events": {"signal": "brush_tuple"}, | ||
| "update": "modify(\"brush_store\", brush_tuple, true)" | ||
| } | ||
| ] | ||
| } | ||
| ], | ||
| "marks": [ | ||
| { | ||
| "name": "brush_brush", | ||
| "type": "path", | ||
| "encode": { | ||
| "enter": { | ||
| "fill": {"value": "#333"}, | ||
| "fillOpacity": {"value": 0.125}, | ||
| "stroke": {"value": "gray"}, | ||
| "strokeWidth": {"value": 2}, | ||
| "strokeDash": {"value": [8, 5]} | ||
| }, | ||
| "update": { | ||
| "path": [ | ||
| { | ||
| "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"\"", | ||
| "signal": "lassoPath(brush_screen_path)" | ||
| }, | ||
| {"value": "[]"} | ||
| ] | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| "name": "marks", | ||
| "type": "symbol", | ||
| "style": ["point"], | ||
| "interactive": true, | ||
| "from": {"data": "source_0"}, | ||
| "encode": { | ||
| "update": { | ||
| "opacity": {"value": 0.7}, | ||
| "fill": {"value": "transparent"}, | ||
| "stroke": [ | ||
| { | ||
| "test": "!length(data(\"brush_store\")) || vlSelectionIdTest(\"brush_store\", datum)", | ||
| "scale": "color", | ||
| "field": "Cylinders" | ||
| }, | ||
| {"value": "grey"} | ||
| ], | ||
| "ariaRoleDescription": {"value": "point"}, | ||
| "description": { | ||
| "signal": "\"Horsepower: \" + (format(datum[\"Horsepower\"], \"\")) + \"; Miles_per_Gallon: \" + (format(datum[\"Miles_per_Gallon\"], \"\")) + \"; Cylinders: \" + (isValid(datum[\"Cylinders\"]) ? datum[\"Cylinders\"] : \"\"+datum[\"Cylinders\"])" | ||
| }, | ||
| "x": {"scale": "x", "field": "Horsepower"}, | ||
| "y": {"scale": "y", "field": "Miles_per_Gallon"} | ||
| } | ||
| } | ||
| } | ||
| ], | ||
| "scales": [ | ||
| { | ||
| "name": "x", | ||
| "type": "linear", | ||
| "domain": {"data": "source_0", "field": "Horsepower"}, | ||
| "range": [0, {"signal": "width"}], | ||
| "nice": true, | ||
| "zero": true | ||
| }, | ||
| { | ||
| "name": "y", | ||
| "type": "linear", | ||
| "domain": {"data": "source_0", "field": "Miles_per_Gallon"}, | ||
| "range": [{"signal": "height"}, 0], | ||
| "nice": true, | ||
| "zero": true | ||
| }, | ||
| { | ||
| "name": "color", | ||
| "type": "ordinal", | ||
| "domain": {"data": "source_0", "field": "Cylinders", "sort": true}, | ||
| "range": "ordinal", | ||
| "interpolate": "hcl" | ||
| } | ||
| ], | ||
| "axes": [ | ||
| { | ||
| "scale": "x", | ||
| "orient": "bottom", | ||
| "gridScale": "y", | ||
| "grid": true, | ||
| "tickCount": {"signal": "ceil(width/40)"}, | ||
| "domain": false, | ||
| "labels": false, | ||
| "aria": false, | ||
| "maxExtent": 0, | ||
| "minExtent": 0, | ||
| "ticks": false, | ||
| "zindex": 0 | ||
| }, | ||
| { | ||
| "scale": "y", | ||
| "orient": "left", | ||
| "gridScale": "x", | ||
| "grid": true, | ||
| "tickCount": {"signal": "ceil(height/40)"}, | ||
| "domain": false, | ||
| "labels": false, | ||
| "aria": false, | ||
| "maxExtent": 0, | ||
| "minExtent": 0, | ||
| "ticks": false, | ||
| "zindex": 0 | ||
| }, | ||
| { | ||
| "scale": "x", | ||
| "orient": "bottom", | ||
| "grid": false, | ||
| "title": "Horsepower", | ||
| "labelFlush": true, | ||
| "labelOverlap": true, | ||
| "tickCount": {"signal": "ceil(width/40)"}, | ||
| "zindex": 0 | ||
| }, | ||
| { | ||
| "scale": "y", | ||
| "orient": "left", | ||
| "grid": false, | ||
| "title": "Miles_per_Gallon", | ||
| "labelOverlap": true, | ||
| "tickCount": {"signal": "ceil(height/40)"}, | ||
| "zindex": 0 | ||
| } | ||
| ], | ||
| "legends": [ | ||
| { | ||
| "stroke": "color", | ||
| "symbolType": "circle", | ||
| "title": "Cylinders", | ||
| "encode": { | ||
| "symbols": { | ||
| "update": { | ||
| "fill": {"value": "transparent"}, | ||
| "opacity": {"value": 0.7} | ||
| } | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| } |
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