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October 5, 2017 19:43
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<link rel="stylesheet" href="http://trifacta.github.io/vega/css/vega.css"/> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
<script src="https://vega.github.io/vega/vega-core.min.js"></script> | |
</head> | |
<body> | |
<div id="view" 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} | |
] | |
} | |
} | |
} | |
] | |
} | |
vg.parse.spec(spec, function(chart) { | |
var view = chart({el:"#view", data:data}) //here is where we populate the empty spec data holder with our calculated data | |
.update(); | |
}); | |
</script> | |
</body> |
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