Created
May 7, 2019 18:49
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| { | |
| "$schema": "https://vega.github.io/schema/vega/v5.json", | |
| "autosize": "pad", | |
| "padding": 5, | |
| "width": 200, | |
| "height": 200, | |
| "style": "cell", | |
| "data": [ | |
| {"name": "grid_store"}, | |
| { | |
| "name": "source_0", | |
| "url": "data/cars.json", | |
| "format": {"type": "json"}, | |
| "transform": [ | |
| { | |
| "type": "filter", | |
| "expr": "datum[\"Horsepower\"] !== null && !isNaN(datum[\"Horsepower\"]) && datum[\"Miles_per_Gallon\"] !== null && !isNaN(datum[\"Miles_per_Gallon\"]) && datum[\"Cylinders\"] !== null && !isNaN(datum[\"Cylinders\"])" | |
| } | |
| ] | |
| } | |
| ], | |
| "signals": [ | |
| { | |
| "name": "unit", | |
| "value": {}, | |
| "on": [ | |
| {"events": "mousemove", "update": "isTuple(group()) ? group() : unit"} | |
| ] | |
| }, | |
| {"name": "sample", "update": "span(domain(\"x\"))/span(domain(\"y\"))"}, | |
| {"name": "grid", "update": "vlSelectionResolve(\"grid_store\")"}, | |
| {"name": "reachedExtent", "react": true, "update": "span(domain(\"x\")) >= 250"}, | |
| { | |
| "name": "grid_Horsepower", | |
| "on": [ | |
| { | |
| "events": {"signal": "grid_translate_delta"}, | |
| "update": "clampRange(panLinear(grid_translate_anchor.extent_x, -grid_translate_delta.x / width), 0, 250) " | |
| }, | |
| { | |
| "events": {"signal": "grid_zoom_delta"}, | |
| "update": "clampRange(zoomLinear(domain(\"x\"), grid_zoom_anchor.x, grid_zoom_delta), 0, 250)" | |
| }, | |
| {"events": [{"source": "scope", "type": "dblclick"}], "update": "null"} | |
| ] | |
| }, | |
| { | |
| "name": "grid_Miles_per_Gallon", | |
| "on": [ | |
| { | |
| "events": {"signal": "grid_translate_delta"}, | |
| "update": "panLinear(grid_translate_anchor.extent_y, grid_translate_delta.y / height)" | |
| }, | |
| { | |
| "events": [{"signal": "grid_zoom_delta"}], | |
| "force": true, | |
| "update": "zoomLinear(domain(\"y\"), grid_zoom_anchor.y, grid_zoom_delta)" | |
| }, | |
| {"events": [{"source": "scope", "type": "dblclick"}], "update": "null"} | |
| ] | |
| }, | |
| { | |
| "name": "grid_tuple", | |
| "on": [ | |
| { | |
| "events": [{"signal": "grid_Horsepower || grid_Miles_per_Gallon"}], | |
| "update": "grid_Horsepower && grid_Miles_per_Gallon ? {unit: \"\", fields: grid_tuple_fields, values: [grid_Horsepower,grid_Miles_per_Gallon]} : null" | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "grid_tuple_fields", | |
| "value": [ | |
| {"field": "Horsepower", "channel": "x", "type": "R"}, | |
| {"field": "Miles_per_Gallon", "channel": "y", "type": "R"} | |
| ] | |
| }, | |
| { | |
| "name": "grid_translate_anchor", | |
| "value": {}, | |
| "on": [ | |
| { | |
| "events": [{"source": "scope", "type": "mousedown"}], | |
| "update": "{x: x(unit), y: y(unit), extent_x: domain(\"x\"), extent_y: domain(\"y\")}" | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "grid_translate_delta", | |
| "value": {}, | |
| "on": [ | |
| { | |
| "events": [ | |
| { | |
| "source": "window", | |
| "type": "mousemove", | |
| "consume": true, | |
| "between": [ | |
| {"source": "scope", "type": "mousedown"}, | |
| {"source": "window", "type": "mouseup"} | |
| ] | |
| } | |
| ], | |
| "update": "{x: grid_translate_anchor.x - x(unit), y: grid_translate_anchor.y - y(unit)}" | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "grid_zoom_anchor", | |
| "on": [ | |
| { | |
| "events": [{"source": "scope", "type": "wheel", "consume": true}], | |
| "update": "{x: invert(\"x\", x(unit)), y: invert(\"y\", y(unit))}" | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "grid_zoom_delta", | |
| "on": [ | |
| { | |
| "events": [{"source": "scope", "type": "wheel", "consume": true}], | |
| "force": true, | |
| "update": "reachedExtent ? clamp(pow(1.001, event.deltaY * pow(16, event.deltaMode)), 0, 1) : pow(1.001, event.deltaY * pow(16, event.deltaMode))" | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "grid_modify", | |
| "update": "modify(\"grid_store\", grid_tuple, true)" | |
| } | |
| ], | |
| "marks": [ | |
| { | |
| "name": "marks", | |
| "type": "symbol", | |
| "clip": true, | |
| "style": ["circle"], | |
| "from": {"data": "source_0"}, | |
| "encode": { | |
| "update": { | |
| "opacity": {"value": 0.7}, | |
| "fill": {"value": "#4c78a8"}, | |
| "tooltip": { | |
| "signal": "{\"Horsepower\": format(datum[\"Horsepower\"], \"\"), \"Miles_per_Gallon\": format(datum[\"Miles_per_Gallon\"], \"\"), \"Cylinders\": format(datum[\"Cylinders\"], \"\")}" | |
| }, | |
| "x": [ | |
| { | |
| "test": "datum[\"Horsepower\"] === null || isNaN(datum[\"Horsepower\"])", | |
| "value": 0 | |
| }, | |
| {"scale": "x", "field": "Horsepower"} | |
| ], | |
| "y": [ | |
| { | |
| "test": "datum[\"Miles_per_Gallon\"] === null || isNaN(datum[\"Miles_per_Gallon\"])", | |
| "field": {"group": "height"} | |
| }, | |
| {"scale": "y", "field": "Miles_per_Gallon"} | |
| ], | |
| "size": {"scale": "size", "field": "Cylinders"}, | |
| "shape": {"value": "circle"} | |
| } | |
| } | |
| } | |
| ], | |
| "scales": [ | |
| { | |
| "name": "x", | |
| "type": "linear", | |
| "domain": [75, 150], | |
| "domainRaw": {"signal": "grid[\"Horsepower\"]"}, | |
| "range": [0, {"signal": "width"}], | |
| "nice": true, | |
| "zero": false | |
| }, | |
| { | |
| "name": "y", | |
| "type": "linear", | |
| "domain": [20, 40], | |
| "domainRaw": {"signal": "grid[\"Miles_per_Gallon\"]"}, | |
| "range": [{"signal": "height"}, 0], | |
| "nice": true, | |
| "zero": false | |
| }, | |
| { | |
| "name": "size", | |
| "type": "linear", | |
| "domain": {"data": "source_0", "field": "Cylinders"}, | |
| "range": [0, 361], | |
| "zero": true | |
| } | |
| ], | |
| "axes": [ | |
| { | |
| "scale": "x", | |
| "orient": "bottom", | |
| "grid": false, | |
| "title": "Horsepower", | |
| "labelFlush": true, | |
| "labelOverlap": true, | |
| "tickCount": {"signal": "ceil(width/40)"}, | |
| "zindex": 1 | |
| }, | |
| { | |
| "scale": "x", | |
| "orient": "bottom", | |
| "gridScale": "y", | |
| "grid": true, | |
| "tickCount": {"signal": "ceil(width/40)"}, | |
| "domain": false, | |
| "labels": false, | |
| "maxExtent": 0, | |
| "minExtent": 0, | |
| "ticks": false, | |
| "zindex": 0 | |
| }, | |
| { | |
| "scale": "y", | |
| "orient": "left", | |
| "grid": false, | |
| "title": "Miles_per_Gallon", | |
| "labelOverlap": true, | |
| "tickCount": {"signal": "ceil(height/40)"}, | |
| "zindex": 1 | |
| }, | |
| { | |
| "scale": "y", | |
| "orient": "left", | |
| "gridScale": "x", | |
| "grid": true, | |
| "tickCount": {"signal": "ceil(height/40)"}, | |
| "domain": false, | |
| "labels": false, | |
| "maxExtent": 0, | |
| "minExtent": 0, | |
| "ticks": false, | |
| "zindex": 0 | |
| } | |
| ], | |
| "legends": [ | |
| { | |
| "size": "size", | |
| "gradientLength": {"signal": "clamp(height, 64, 200)"}, | |
| "symbolType": "circle", | |
| "title": "Cylinders", | |
| "encode": { | |
| "symbols": { | |
| "update": { | |
| "fill": {"value": "#4c78a8"}, | |
| "shape": {"value": "circle"}, | |
| "opacity": {"value": 0.7}, | |
| "stroke": {"value": "transparent"} | |
| } | |
| } | |
| } | |
| } | |
| ] | |
| } |
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