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forked from anonymous's block: Venga Example
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May 2, 2018 21:36
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Vega Example
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/vega/3.0.2/vega.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/vega-lite/2.0.0-rc3/vega-lite.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/vega-embed/3.0.0-beta.20/vega-embed.js"></script> | |
| </head> | |
| <body> | |
| <div id="chartholder" class="view"></div> | |
| <script> | |
| var spec = { | |
| "$schema": "https://vega.github.io/schema/vega/v3.0.json", | |
| "width": 400, | |
| "height": 200, | |
| "padding": 5, | |
| "data": [ | |
| { | |
| "name": "table", | |
| "values": [ | |
| {"category": "A", "amount": 28}, | |
| {"category": "B", "amount": 55}, | |
| {"category": "C", "amount": 43}, | |
| {"category": "D", "amount": 91}, | |
| {"category": "E", "amount": 81}, | |
| {"category": "F", "amount": 53}, | |
| {"category": "G", "amount": 19}, | |
| {"category": "H", "amount": 87} | |
| ] | |
| } | |
| ], | |
| "signals": [ | |
| { | |
| "name": "tooltip", | |
| "value": {}, | |
| "on": [ | |
| {"events": "rect:mouseover", "update": "datum"}, | |
| {"events": "rect:mouseout", "update": "{}"} | |
| ] | |
| } | |
| ], | |
| "scales": [ | |
| { | |
| "name": "xscale", | |
| "type": "band", | |
| "domain": {"data": "table", "field": "category"}, | |
| "range": "width", | |
| "padding": 0.05, | |
| "round": true | |
| }, | |
| { | |
| "name": "yscale", | |
| "domain": {"data": "table", "field": "amount"}, | |
| "nice": true, | |
| "range": "height" | |
| } | |
| ], | |
| "axes": [ | |
| { "orient": "bottom", "scale": "xscale" }, | |
| { "orient": "left", "scale": "yscale" } | |
| ], | |
| "marks": [ | |
| { | |
| "type": "rect", | |
| "from": {"data":"table"}, | |
| "encode": { | |
| "enter": { | |
| "x": {"scale": "xscale", "field": "category"}, | |
| "width": {"scale": "xscale", "band": 1}, | |
| "y": {"scale": "yscale", "field": "amount"}, | |
| "y2": {"scale": "yscale", "value": 0} | |
| }, | |
| "update": { | |
| "fill": {"value": "steelblue"} | |
| }, | |
| "hover": { | |
| "fill": {"value": "red"} | |
| } | |
| } | |
| }, | |
| { | |
| "type": "text", | |
| "encode": { | |
| "enter": { | |
| "align": {"value": "center"}, | |
| "baseline": {"value": "bottom"}, | |
| "fill": {"value": "#333"} | |
| }, | |
| "update": { | |
| "x": {"scale": "xscale", "signal": "tooltip.category", "band": 0.5}, | |
| "y": {"scale": "yscale", "signal": "tooltip.amount", "offset": -2}, | |
| "text": {"signal": "tooltip.amount"}, | |
| "fillOpacity": [ | |
| {"test": "datum === tooltip", "value": 0}, | |
| {"value": 1} | |
| ] | |
| } | |
| } | |
| } | |
| ] | |
| } | |
| vega.embed("#chartholder", spec); | |
| </script> | |
| </body> |
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