Created
April 25, 2013 16:53
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Resizable stacked bar chart using vega+d3+svg
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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.js"> | |
| </script> | |
| <script | |
| id="viz-script-vega" | |
| type="text/javascript" | |
| src="http://trifacta.github.io/vega/vega.js"> | |
| </script> | |
| <script | |
| id="viz-script-spec" | |
| type="text/javascript"> | |
| //<![CDATA[ | |
| var viz_vega_spec = { | |
| "width": 500.0, | |
| "height": 200.0, | |
| "padding": { | |
| "top": 10.0, | |
| "left": 30.0, | |
| "bottom": 30.0, | |
| "right": 10.0 | |
| }, | |
| "data": [ | |
| { | |
| "name": "table", | |
| "values": [ | |
| { | |
| "x": 0, | |
| "y": 28, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 0, | |
| "y": 55, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 1, | |
| "y": 43, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 1, | |
| "y": 91, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 2, | |
| "y": 81, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 2, | |
| "y": 53, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 3, | |
| "y": 19, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 3, | |
| "y": 87, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 4, | |
| "y": 52, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 4, | |
| "y": 48, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 5, | |
| "y": 24, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 5, | |
| "y": 49, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 6, | |
| "y": 87, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 6, | |
| "y": 66, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 7, | |
| "y": 17, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 7, | |
| "y": 27, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 8, | |
| "y": 68, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 8, | |
| "y": 16, | |
| "c": 1 | |
| }, | |
| { | |
| "x": 9, | |
| "y": 49, | |
| "c": 0 | |
| }, | |
| { | |
| "x": 9, | |
| "y": 15, | |
| "c": 1 | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "stats", | |
| "source": "table", | |
| "transform": [ | |
| { | |
| "keys": [ | |
| "data.x" | |
| ], | |
| "type": "facet" | |
| }, | |
| { | |
| "value": "data.y", | |
| "type": "stats" | |
| } | |
| ] | |
| } | |
| ], | |
| "scales": [ | |
| { | |
| "name": "x", | |
| "type": "ordinal", | |
| "domain": { | |
| "data": "table", | |
| "field": "data.x" | |
| }, | |
| "range": "width" | |
| }, | |
| { | |
| "name": "y", | |
| "type": "linear", | |
| "domain": { | |
| "data": "stats", | |
| "field": "sum" | |
| }, | |
| "range": "height", | |
| "nice": true | |
| }, | |
| { | |
| "name": "color", | |
| "type": "ordinal", | |
| "range": "category10" | |
| } | |
| ], | |
| "axes": [ | |
| { | |
| "type": "x", | |
| "scale": "x" | |
| }, | |
| { | |
| "type": "y", | |
| "scale": "y" | |
| } | |
| ], | |
| "marks": [ | |
| { | |
| "type": "group", | |
| "from": { | |
| "data": "table", | |
| "transform": [ | |
| { | |
| "keys": [ | |
| "data.c" | |
| ], | |
| "type": "facet" | |
| }, | |
| { | |
| "point": "data.x", | |
| "height": "data.y", | |
| "type": "stack" | |
| } | |
| ] | |
| }, | |
| "marks": [ | |
| { | |
| "properties": { | |
| "enter": { | |
| "x": { | |
| "field": "data.x", | |
| "scale": "x" | |
| }, | |
| "width": { | |
| "scale": "x", | |
| "offset": -1.0, | |
| "band": true | |
| }, | |
| "y": { | |
| "field": "y", | |
| "scale": "y" | |
| }, | |
| "y2": { | |
| "field": "y2", | |
| "scale": "y" | |
| }, | |
| "fill": { | |
| "field": "data.c", | |
| "scale": "color" | |
| } | |
| }, | |
| "update": { | |
| "fillOpacity": { | |
| "value": 1.0 | |
| } | |
| }, | |
| "hover": { | |
| "fillOpacity": { | |
| "value": 0.5 | |
| } | |
| } | |
| }, | |
| "type": "rect" | |
| } | |
| ] | |
| } | |
| ] | |
| }; | |
| //]]> | |
| </script> | |
| <script | |
| id="viz-script-render" | |
| type="text/javascript"> | |
| //<![CDATA[ | |
| if (typeof viz_vega_spec.padding == 'undefined') | |
| viz_vega_spec.padding = {}; | |
| if (typeof viz_vega_spec.padding.top == 'undefined') | |
| viz_vega_spec.padding.top = 0; | |
| if (typeof viz_vega_spec.padding.bottom == 'undefined') | |
| viz_vega_spec.padding.bottom = 0; | |
| if (typeof viz_vega_spec.padding.left == 'undefined') | |
| viz_vega_spec.padding.left = 0; | |
| if (typeof viz_vega_spec.padding.right == 'undefined') | |
| viz_vega_spec.padding.right= 0; | |
| 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({props:'enter'}).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; | |
| //]]> | |
| </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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Hello! I tried rendering your
viz_vega_specvar in the Vega Editor. I basically copied the code in between {} for the variableviz_vega_spec. However, I can get an error on thestatsdata declaration. It seems to be about the transformation that's being applied to it, in line 36. I tried trying to debug but I'm still learning Vega and could not figure out the problem.I think it has to do with this line:
{"value": "data.y","type": "stats"}If I understand correctly,
typehas to be one of the data transformations defined in the api. Listed here: https://github.com/vega/vega/wiki/Data-TransformsHere is the list of errors I get when I inspect:
Any advice would be helpful. Thanks for your help!