echarts仪表盘

效果图：

代码：

option = {
    tooltip : {
        formatter: "{a} <br/>{b} : {c}%"
    },
 
    color:["red","blue"],
      legend:{
        x:'center',
      data:['读','写']
    },
    series : [
        {
            name:'读',
            type:'gauge',
            detail : { 
              show : true,
 
     100,
    height: 20,
    offsetCenter: [0, '40%'],
    formatter: '读{value}',
    textStyle: {
        color: 'auto',
        fontSize : 12
    }
            },
             pointer:{
                length : '50%',
                width : 2,
                    color : 'red'
            },     
           min:0,
          max:1500,
        startAngle:225,
            endAngle:135,
            data:[{value: 50, name: '次数'}]
        },
     {
    name:'写',
    type:'gauge',
    detail : { 
       show : true,
        100,
       height: 50,
       offsetCenter: [0, '40%'],
       formatter:  '写{value}',
       textStyle: {
           color: 'auto',
           fontSize : 12
       }
     },
     pointer:{
        length : '50%',
        width : 2,
       color : 'blue'
     },     
     min:0,
     max:1500,
     startAngle:45,
     endAngle:-45,
     data:[{value: 50, name: '次数'}]
}
    ]
};

clearInterval(timeTicket);
timeTicket = setInterval(function (){
    option.series[0].data[0].value = (Math.random()*100).toFixed(2) - 0;
    option.series[1].data[0].value = (Math.random()*100).toFixed(2) - 0;
  myChart.setOption(option, true);
},2000);


                    

将此段代码放到http://echarts.baidu.com/echarts2/doc/example/gauge1.html?qq-pf-to=pcqq.group的代码窗口中，刷新即可看到效果。