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Extrema-highlighed animated bars in Vega+D3
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| <!DOCTYPE html> | |
| <html | |
| xmlns="http://www.w3.org/1999/xhtml"> | |
| <head> | |
| <title>Visualization</title> | |
| <meta | |
| charset="UTF-8" /> | |
| <meta | |
| http-equiv="Content-type" | |
| content="text/html;charset=UTF-8" /> | |
| <script | |
| id="viz-script-d3" | |
| type="text/javascript" | |
| src="http://d3js.org/d3.v3.min.js"> | |
| </script> | |
| <script | |
| id="viz-script-vega" | |
| type="text/javascript" | |
| src="http://trifacta.github.io/vega/vega.min.js"> | |
| </script> | |
| <script | |
| id="viz-script-spec" | |
| type="text/javascript"> | |
| //<![CDATA[ | |
| Number.prototype.formatMoney = function(c, d, t){ | |
| var n = this, | |
| c = isNaN(c = Math.abs(c)) ? 2 : c, | |
| d = d == undefined ? "." : d, | |
| t = t == undefined ? "," : t, | |
| s = n < 0 ? "-" : "", | |
| i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", | |
| j = (j = i.length) > 3 ? j % 3 : 0; | |
| return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : ""); | |
| }; | |
| function random_value() { | |
| return Math.floor((Math.random()*100)*(Math.random()*100)*(Math.random()<=.1 ? -1 : 1)); | |
| } | |
| function randomized_data() { | |
| var a = []; | |
| for (var x = 1; x <= 20; x++) | |
| a.push({"x": x, "y": random_value() }); | |
| return a; | |
| } | |
| var viz_vega_spec = { | |
| "width": 300, | |
| "height": 20, | |
| "padding": {"top": 10, "left": 50, "bottom": 30, "right": 10}, | |
| "data": [ | |
| { | |
| "name": "table", | |
| "values": randomized_data() | |
| }, | |
| { | |
| "name": "tableStats", | |
| "source": "table", | |
| "transform": [ | |
| {"type": "stats", "value": "data.y"} | |
| ] | |
| }, | |
| { | |
| "name": "tableWithStats", | |
| "source": "table", | |
| "transform": [ | |
| { | |
| "type": "zip", | |
| "with": "tableStats", | |
| "as": "stats" | |
| }, | |
| { | |
| "type": "formula", | |
| "field": "isExtremum", | |
| "expr": "(d.data.y >= d.stats.max) || (d.data.y <= d.stats.min)" | |
| }, | |
| { | |
| "type": "formula", | |
| "field": "formattedYValue", | |
| "expr": "('$' + ((d.data.y).toFixed(2)))" | |
| }, | |
| { | |
| "type": "formula", | |
| "field": "textVerticalOffset", | |
| "expr": "d.data.y > 0 ? 15 : d.data.y < 0 ? -15 : 0" | |
| } | |
| ] | |
| } | |
| ], | |
| "scales": [ | |
| { | |
| "name": "x", | |
| "type": "ordinal", | |
| "range": "width", | |
| "domain": {"data": "table", "field": "data.x"} | |
| }, | |
| { | |
| "name": "y", | |
| "range": "height", | |
| "nice": true, | |
| "domain": {"data": "table", "field": "data.y"} | |
| }, | |
| { | |
| "name": "color", | |
| "domain": {"data": "tableWithStats", "field": "isExtremum"}, | |
| "range": ["steelblue","forestgreen"] | |
| } | |
| ], | |
| "axes": [ | |
| {"type": "x", "scale": "x"}, | |
| {"type": "y", "scale": "y"} | |
| ], | |
| "marks": [ | |
| { | |
| "type": "rect", | |
| "from": {"data": "table"}, | |
| "properties": { | |
| "update": { | |
| "x": {"scale": "x", "field": "data.x"}, | |
| "width": {"scale": "x", "band": true, "offset": -1}, | |
| "y": {"scale": "y", "field": "data.y"}, | |
| "y2": {"scale": "y", "value": 0}, | |
| "fill": {"scale": "color", "field": "isExtremum"}, | |
| "stroke": {"value": "black"}, | |
| "strokeWidth": {"value": "0"} | |
| }, | |
| "hover": { | |
| "stroke": {"value": "black"}, | |
| "strokeWidth": {"value": "1"} | |
| } | |
| } | |
| }, | |
| { | |
| "type": "text", | |
| "from": {"data": "table"}, | |
| "properties": { | |
| "update": { | |
| "text": {"field": "formattedYValue"}, | |
| "font": {"value": "Helvetica Neue"}, | |
| "fontWeight": {"value": "bold"}, | |
| "x": {"scale": "x", "field": "data.x", "offset": 2 }, | |
| "y": {"scale": "y", "field": "data.y"}, | |
| "fill": {"value": "black"}, | |
| "align": {"value": "left"}, | |
| "baseline": {"value": "middle"}, | |
| "dy": {"field": "textVerticalOffset"} | |
| } | |
| } | |
| } | |
| ] | |
| }; | |
| viz_render = function() { | |
| viz_view.width(window.innerWidth-viz_vega_spec.padding.left-viz_vega_spec.padding.right).height(window.innerHeight-viz_vega_spec.padding.top - viz_vega_spec.padding.bottom).renderer('svg').update(); | |
| } | |
| vg.parse.spec(viz_vega_spec, function(chart) { | |
| self.viz_chart = chart; | |
| self.viz_view = viz_chart({el:'#viz-visualization'}); | |
| viz_render(); | |
| }); | |
| window.onresize = viz_render; | |
| var viz_interval = setInterval(function(){ | |
| viz_view.data({table:randomized_data()}).update({duration:1000 }); | |
| },1000); | |
| //]]> | |
| </script> | |
| <style | |
| id="viz-styles" | |
| type="text/css"> | |
| </style> | |
| </head> | |
| <body | |
| style="padding:0; margin:0; overflow:hidden;"> | |
| <div | |
| id="viz-visualization"> | |
| </div> | |
| </body> | |
| </html> |
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