Echarts在线免费图表

 
            option = {
    title:{
        text: '仪表盘',
        subtext: '纯属虚构',
        x:'center'
    },
    tooltip: {
        formatter: "{a} <br/>{b} : {c}%"
    },
    toolbox: {
        feature: {
            restore: {},
            saveAsImage: {}
        }
    },
    series: [{
        name: '速度',
        type: 'gauge',
        max:280,
        radius:'70%',  // 半径
        startAngle:215,  //起始位置
        endAngle:-35,   //终点位置
        detail: {
            formatter: '{value}Km/h'
        },
        data: [{
            value: 100,
            name: '完成率'
        }]
    }]
};


setInterval(function () {
    option.series[0].data[0].value = (Math.random() * 280).toFixed(2) - 0;
    myChart.setOption(option, true);
},1000);