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javascript - 如何在 Plottable.js 饼图中使用自己的调色板

转载 作者:行者123 更新时间:2023-12-02 15:21:15 29 4
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我有以下代码:

var scale = new Plottable.Scales.Linear();
var colorScale = new Plottable.Scales.Color();
var data = [{ val: 1 }, { val: 2 }, { val: 3 },
{ val: 4 }, { val: 5 }, { val: 6 }];

var plot = new Plottable.Plots.Pie()
.addDataset(new Plottable.Dataset(data))
.sectorValue(function(d) { return d.val; }, scale)
.attr("fill", function(d) { return d.val; }, colorScale)
.renderTo("svg#example");

window.addEventListener("resize", function() {
plot.redraw();
});
<!doctype html>
<html>
<head>

<!-- Later add new CSS to define the placement of the legend, fold change etc -->
</head>




<body>
<!-- Display the sliding bar -->

<svg width="100%" height="100%" id="example"></svg>

<!-- Act on the thing -->
<link href="http://plottablejs.org/assets/css/application.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.css" rel="stylesheet"/>

<link href="http://plottablejs.org/assets/css/application.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.css" rel="stylesheet"/>


</body>
</html>

如果您运行代码,您会注意到饼图是使用默认颜色生成。

我想做的是使用我自己的调色板:

var tableau20 = ['#1F77B4', '#FF7F0E', '#2CA02C', '#D62728', '#9467BD', '#8C564B', '#CFECF9', '#7F7F7F', '#BCBD22', '#17BECF'];

我怎样才能做到这一点?

   var colorScale = new Plottable.Scales.Color(tableau20);

最佳答案

尝试range()

var scale = new Plottable.Scales.Linear();
var colorScale = new Plottable.Scales.Color();
colorScale.range(['#1F77B4', '#FF7F0E', '#2CA02C', '#D62728', '#9467BD', '#8C564B', '#CFECF9', '#7F7F7F', '#BCBD22', '#17BECF']);
var data = [{ val: 1 }, { val: 2 }, { val: 3 },
{ val: 4 }, { val: 5 }, { val: 6 }];

var plot = new Plottable.Plots.Pie()
.addDataset(new Plottable.Dataset(data))
.sectorValue(function(d) { return d.val; }, scale)
.attr("fill", function(d) { return d.val; }, colorScale)
.renderTo("svg#example");

window.addEventListener("resize", function() {
plot.redraw();
});
<!doctype html>
<html>
<head>

<!-- Later add new CSS to define the placement of the legend, fold change etc -->
</head>




<body>
<!-- Display the sliding bar -->

<svg width="100%" height="100%" id="example"></svg>

<!-- Act on the thing -->
<link href="http://plottablejs.org/assets/css/application.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.css" rel="stylesheet"/>

<link href="http://plottablejs.org/assets/css/application.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/plottable.js/1.12.0/plottable.css" rel="stylesheet"/>


</body>
</html>

关于javascript - 如何在 Plottable.js 饼图中使用自己的调色板,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34039324/

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