4.png

需要引入的第三方插件：
(https://echarts.baidu.com/resource/echarts-liquidfill-latest/dist/echarts-liquidfill.min.js)

echarts配置：

var ratio = 40; //占比数值  总数为100
var ratioLength = 3; //波浪数量
var ratioArr = [];
var ratioColor = ['#1991d2', '#3831f3', '#1991d2']; //波浪内颜色
for (var ratioIndex = 0; ratioIndex < ratioLength; ratioIndex++) {
    ratioArr.push(ratio / 100)
}
let angle =0;

var option = {
    backgroundColor: '#003366',
    title: {
        text: ratio + '%',
        textStyle: {
            fontSize: 50,
            fontFamily: 'Microsoft Yahei',
            fontWeight: 'bold',
            color: '#fff'
        },
        x: 'center',
        y: 'center'
    },
    series: [{
            type: 'liquidFill',
            radius: '40%',
            center: ['50%', '50%'],
            color: ratioColor,
            data: ratioArr,
            backgroundStyle: {
                // borderWidth: 1,
                color: '#1f2c52'
            },
            label: {
                normal: {
                    formatter: '',
                }
            },
            outline: {
                show: false,
            }
        },
        { //细的外圈
            type: "pie",
            center: ["50%", "50%"],
            radius: ["48%", "50%"],
            hoverAnimation: false,
            data: [{
                    name: "",
                    value: 50,
                    labelLine: {
                        show: false
                    },
                    itemStyle: {
                        color: 'transparent'
                    },
                    emphasis: {
                        labelLine: {
                            show: false
                        },
                        itemStyle: {
                            color: 'transparent'
                        },
                    }
                },
            ]
        },
        { //粗的外圈
            type: "pie",
            center: ["50%", "50%"],
            radius: ["45%", "61%"],
            hoverAnimation: false,
            zlevel: 2,
            data: [


                {
                    name: "",
                    value: 50,
                    labelLine: {
                        show: false
                    },
                    itemStyle: {
                        color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                            offset: 0,
                            color: '#00e2fe'
                        }, {
                            offset: 1,
                            color: '#0707ff'
                        }]),
                    },
                    emphasis: {
                        labelLine: {
                            show: false
                        },
                        itemStyle: {
                            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                                offset: 0,
                                color: '#00e2fe'
                            }]),
                        },
                    }
                },
            ]
        },
        {
            name: "",
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                return {
                    type: 'arc',
                    shape: {
                        cx: api.getWidth() / 2,
                        cy: api.getHeight() / 2,
                        r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65,
                        startAngle: (5 + -angle) * Math.PI / 180,
                        endAngle: (115 + -angle) * Math.PI / 180
                    },
                    style: {
                        stroke: "#0CD3DB33",
                        fill: "transparent",
                        lineWidth: 1.5
                    },
                    silent: true
                };
            },
            data: [0]
        },
         {
            name: "",
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                return {
                    type: 'arc',
                    shape: {
                        cx: api.getWidth() / 2,
                        cy: api.getHeight() / 2,
                        r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65,
                        startAngle: (125 + -angle) * Math.PI / 180,
                        endAngle: (235 + -angle) * Math.PI / 180
                    },
                    style: {
                        stroke: "#0CD3DB33",
                        fill: "transparent",
                        lineWidth: 1.5
                    },
                    silent: true
                };
            },
            data: [0]
        },
        {
            name: "",
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                return {
                    type: 'arc',
                    shape: {
                        cx: api.getWidth() / 2,
                        cy: api.getHeight() / 2,
                        r: Math.min(api.getWidth(), api.getHeight()) / 2 * 0.65,
                        startAngle: (245 + -angle) * Math.PI / 180,
                        endAngle: (355 + -angle) * Math.PI / 180
                    },
                    style: {
                        stroke: "#0CD3DB33",
                        fill: "transparent",
                        lineWidth: 1.5
                    },
                    silent: true
                };
            },
            data: [0]
        },
        {
            name: "",
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                let x0 = api.getWidth() / 2;
                let y0 = api.getHeight() / 2;
                let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.67;
                let point = getCirlPoint(x0, y0, r, (0 + -angle))
                return {
                    type: 'circle',
                    shape: {
                        cx: point.x,
                        cy: point.y,
                        r: 4.8
                    },
                    style: {
                        stroke: "#0CD3DB",
                        fill: "#0CD3DB"
                    },
                    silent: true
                };
            },
            data: [0]
        },
         {
            name: "",
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                let x0 = api.getWidth() / 2;
                let y0 = api.getHeight() / 2;
                let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.67;
                let point = getCirlPoint(x0, y0, r, (120 + -angle))
                return {
                    type: 'circle',
                    shape: {
                        cx: point.x,
                        cy: point.y,
                        r: 4.8
                    },
                    style: {
                        stroke: "#0CD3DB",
                        fill: "#0CD3DB"
                    },
                    silent: true
                };
            },
            data: [0]
        },
        {
            name: "",  //绿点
            type: 'custom',
            coordinateSystem: "none",
            renderItem: function (params, api) {
                let x0 = api.getWidth() / 2;
                let y0 = api.getHeight() / 2;
                let r = Math.min(api.getWidth(), api.getHeight()) / 2 * 0.67;
                let point = getCirlPoint(x0, y0, r, (240 + -angle))
                return {
                    type: 'circle',
                    shape: {
                        cx: point.x,
                        cy: point.y,
                        r: 4.8
                    },
                    style: {
                        stroke: "#0CD3DB",  
                        fill: "#0CD3DB"
                    },
                    silent: true
                };
            },
            data: [0]
        },

    ]
}

 
//获取圆上面某点的坐标(x0,y0表示坐标，r半径，angle角度)
function getCirlPoint(x0, y0, r, angle) {
    let x1 = x0 + r * Math.cos(angle * Math.PI / 180)
    let y1 = y0 + r * Math.sin(angle * Math.PI / 180)
    return {
        x: x1,
        y: y1
    }
}

let timeIntervalPie = setInterval(() => {
    drawTimeIntervalPie()
}, 100);

function drawTimeIntervalPie() {
    angle = angle - 12;
    myChart.setOption(option, true);
}
 timeIntervalPie;