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实现步骤
1、安装echarts
npm install echarts
npm install echarts-gl
2、页面定义容器
<template>
<div ref="echart" class="echartDiv"></div>
</template>
3、js中引入echarts
import * as echarts from 'echarts'
import 'echarts-gl'
VUE 组件完整源码:
<template> <div ref="echart" class="echartDiv"></div> </template> <script> import * as echarts from 'echarts' import 'echarts-gl' import { onMounted, toRefs, ref, reactive } from 'vue' export default { setup() { let state = reactive({ xAxisData: ['老刘', '小妍', '小梦', '小李', '小王', '老王'], yAxisData: [4, 22, 1, 11, 23, 11], yAxisData1: [1, 1, 1, 1, 1, 1], echart: ref(), }) const echartInit = () => { var myChart = echarts.init(state.echart) const series = getPie3D(optionsData, 0.8, 240, 28, 26, 0.5) series.push({ name: 'pie2d', type: 'pie', label: { opacity: 1, fontSize: 14, lineHeight: 20, textStyle: { fontSize: 14, color: '#fff', }, }, labelLine: { length: 30, length2: 30, }, startAngle: -30, //起始角度,支持范围[0, 360]。 clockwise: false, //饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式 radius: ['40%', '60%'], center: ['50%', '50%'], data: optionsData, itemStyle: { opacity: 0, }, }) // 准备待返回的配置项,把准备好的 legendData、series 传入。 let option = { legend: { show: true, tooltip: { show: true, }, orient: 'vertical', data: ['待办', '已办', '未处理', '忽略'], top: 'center', itemGap: 14, itemHeight: 8, itemWidth: 17, right: '2%', textStyle: { color: '#fff', fontSize: 12, }, }, animation: true, tooltip: { formatter: (params) => { if ( params.seriesName !== 'mouseoutSeries' && params.seriesName !== 'pie2d' ) { return `${ params.seriesName }<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${ params.color };"></span>${ option.series[params.seriesIndex].pieData.value + '人' }` } }, textStyle: { fontSize: 14, }, }, title: { x: 'center', top: '20', textStyle: { color: '#fff', fontSize: 22, }, }, backgroundColor: '#0E3567', labelLine: { show: true, lineStyle: { color: '#7BC0CB', }, normal: { show: true, length: 10, length2: 10, }, }, label: { show: true, position: 'outside', formatter: '{b} \n{d}%', textStyle: { color: '#fff', fontSize: '14px', }, }, xAxis3D: { min: -1, max: 1, }, yAxis3D: { min: -1, max: 1, }, zAxis3D: { min: -1, max: 1, }, grid3D: { show: false, boxHeight: 0.01, //top: '30%', bottom: '50%', // environment: "rgba(255,255,255,0)", viewControl: { distance: 180, alpha: 25, beta: 60, autoRotate: true, // 自动旋转 }, }, series: series, } // 使用刚指定的配置项和数据显示图表。 myChart.setOption(option) } function getParametricEquation( startRatio, endRatio, isSelected, isHovered, k, height, ) { console.log('222222222222222222') // 计算 let midRatio = (startRatio + endRatio) / 2 let startRadian = startRatio * Math.PI * 2 let endRadian = endRatio * Math.PI * 2 let midRadian = midRatio * Math.PI * 2 // 如果只有一个扇形,则不实现选中效果。 if (startRatio === 0 && endRatio === 1) { isSelected = false } // 通过扇形内径/外径的值,换算出辅助参数 k(默认值 1/3) k = typeof k !== 'undefined' ? k : 1 / 3 // 计算选中效果分别在 x 轴、y 轴方向上的位移(未选中,则位移均为 0) let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0 let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0 // 计算高亮效果的放大比例(未高亮,则比例为 1) let hoverRate = isHovered ? 1.05 : 1 // 返回曲面参数方程 return { u: { min: -Math.PI, max: Math.PI * 3, step: Math.PI / 32, }, v: { min: 0, max: Math.PI * 2, step: Math.PI / 20, }, x: function (u, v) { if (u < startRadian) { return ( offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate ) } if (u > endRadian) { return ( offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate ) } return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate }, y: function (u, v) { if (u < startRadian) { return ( offsetY + Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate ) } if (u > endRadian) { return ( offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate ) } return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate }, z: function (u, v) { if (u < -Math.PI * 0.5) { return Math.sin(u) } if (u > Math.PI * 2.5) { return Math.sin(u) } return Math.sin(v) > 0 ? 1 * height : -1 }, } } // 生成模拟 3D 饼图的配置项 function getPie3D(pieData, internalDiameterRatio) { let series = [] let sumValue = 0 let startValue = 0 let endValue = 0 let legendData = [] let k = typeof internalDiameterRatio !== 'undefined' ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) : 1 / 3 // 为每一个饼图数据,生成一个 series-surface 配置 for (let i = 0; i < pieData.length; i++) { sumValue += pieData[i].value let seriesItem = { name: typeof pieData[i].name === 'undefined' ? `series${i}` : pieData[i].name, type: 'surface', parametric: true, wireframe: { show: false, }, pieData: pieData[i], pieStatus: { selected: false, hovered: false, k: k, }, } if (typeof pieData[i].itemStyle != 'undefined') { let itemStyle = {} typeof pieData[i].itemStyle.color != 'undefined' ? (itemStyle.color = pieData[i].itemStyle.color) : null typeof pieData[i].itemStyle.opacity != 'undefined' ? (itemStyle.opacity = pieData[i].itemStyle.opacity) : null seriesItem.itemStyle = itemStyle } series.push(seriesItem) } // 使用上一次遍历时,计算出的数据和 sumValue,调用 getParametricEquation 函数, // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation,也就是实现每一个扇形。 for (let i = 0; i < series.length; i++) { endValue = startValue + series[i].pieData.value console.log(series[i]) series[i].pieData.startRatio = startValue / sumValue series[i].pieData.endRatio = endValue / sumValue series[i].parametricEquation = getParametricEquation( series[i].pieData.startRatio, series[i].pieData.endRatio, false, false, k, series[i].pieData.value, ) startValue = endValue legendData.push(series[i].name) } return series } // 传入数据生成 option const optionsData = [ { name: '待办', value: 4256, itemStyle: { // opacity: 0.5, color: '#2A71FF', }, }, { name: '已办', value: 2356, itemStyle: { // opacity: 0.5, color: '#00EDFE', }, }, { name: '未处理', value: 2018, itemStyle: { // opacity: 0.5, color: '#FEDB4B', }, }, { name: '忽略', value: 1998, itemStyle: { // opacity: 0.5, color: '#FE7C2F', }, }, ] //挂载 onMounted(() => { echartInit() }) return { ...toRefs(state), echartInit, } }, } </script> <style lang='scss' scoped> .echartDiv { width: 100%; height: 400px; } </style>
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