Highcharts 测量图
下图是一个 Highcharts 测量图
配置
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配置属性 chart.type 为 'gauge' 即可将图表显示为 测量图
var chart = { type: 'guage' };
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配置属性 pane
属性 pane 只适用在极坐标图和角度测量仪
pane 属性可配置对象持有组合 x 轴和 y 周的常规选项
每个 x 轴和 y 轴都可以通过索引关联到窗格中
pane.startAngle 是 x 轴或测量轴的开始度数,以度数的方式给出,0 是北
pane.endAngle 是 x 轴极坐标或角度轴的最终度数,以度数的方式给出,0 是北
var pane = { startAngle: -150, endAngle: 150 };
范例
下面的代码列出了 Highcharts 测量图 的基本配置
<!doctype html> <meta charset="utf-8" /> <title>Highcharts 基础教程 | 简单教程(www.twle.cn)</title> <script src="https://cdn.hcharts.cn/highcharts/highcharts.js"></script> <script src="https://cdn.hcharts.cn/highcharts/highcharts-more.js"></script> <div id="container" style="width: 500px; height: 400px; margin: 0 auto"></div> <script> var chart = { type: 'gauge', plotBackgroundColor: null, plotBackgroundImage: null, plotBorderWidth: 0, plotShadow: false }; var title = { text: '车速表' }; var pane = { startAngle: -150, endAngle: 150, background: [{ backgroundColor: { linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 }, stops: [ [0, '#FFF'], [1, '#333'] ] }, borderWidth: 0, outerRadius: '109%' }, { backgroundColor: { linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 }, stops: [ [0, '#333'], [1, '#FFF'] ] }, borderWidth: 1, outerRadius: '107%' }, { // default background }, { backgroundColor: '#DDD', borderWidth: 0, outerRadius: '105%', innerRadius: '103%' }] }; // the value axis var yAxis = { min: 0, max: 200, minorTickInterval: 'auto', minorTickWidth: 1, minorTickLength: 10, minorTickPosition: 'inside', minorTickColor: '#666', tickPixelInterval: 30, tickWidth: 2, tickPosition: 'inside', tickLength: 10, tickColor: '#666', labels: { step: 2, rotation: 'auto' }, title: { text: 'km/h' }, plotBands: [{ from: 0, to: 120, color: '#55BF3B' // green }, { from: 120, to: 160, color: '#DDDF0D' // yellow }, { from: 160, to: 200, color: '#DF5353' // red }] }; var series= [{ name: 'Speed', data: [80], tooltip: { valueSuffix: ' km/h' } }]; // Add some life var chartFunction = function (chart) { if (!chart.renderer.forExport) { setInterval(function () { var point = chart.series[0].points[0], newVal, inc = Math.round((Math.random() - 0.5) * 20); newVal = point.y + inc; if (newVal < 0 || newVal > 200) { newVal = point.y - inc; } point.update(newVal); }, 3000); } }; var options = {}; options.chart = chart; options.title = title; options.pane = pane; options.yAxis = yAxis; options.series = series; var chart = Highcharts.chart('container',options); </script>
以上范例输出如下