测量图

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Highcharts 测量图

以下实例演示了测量图。

我们在前面的章节已经了解了 Highcharts 基本配置语法。接下来让我们来看下其他的配置。


配置

chart.type 配置

配置 chart 的 type 为 ‘gauge‘ 。chart.type 描述了图表类型。默认值为 "line"。

var chart = {
   type: ‘guage‘
};

pane 配置

pane 只适用在极坐标图和角度测量仪。此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。

var pane = {
  startAngle: -150,  // x轴或测量轴的开始度数,以度数的方式给出。0是北
  endAngle: 150      //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
};

实例

文件名:highcharts_guage_angular.htm

<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts 教程 | 菜鸟教程(bubuko.com)</title>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/highcharts-more.js"></script>    
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
$(document).ready(function() {  
   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‘
        }
   }];     
      
   var json = {};   
   json.chart = chart; 
   json.title = title;       
   json.pane = pane; 
   json.yAxis = yAxis; 
   json.series = series;     
   
   // 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);
      }
   };
   
   $(‘#container‘).highcharts(json,chartFunction);
});
</script>
</body>
</html>
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