开发效果(待完善):
技术支持:
Echarts echarts-gl
安装:
注:echarts与echarts-gl版本需对应,可参考官网
pnpm add echarts@4.9.0 echarts-gl@1.1.2
组件封装:
<template><div class="water-eval-container"><div class="cityGreenLand-charts" id="cityGreenLand-charts"></div><!-- 底座背景 --><div class="bg"></div></div> </template><script lang="ts" setup> import { getCurrentInstance } from "vue" const { proxy } = getCurrentInstance() as any; import 'echarts-gl';const optionData = ref([{name: 'aaa',value: 10000,itemStyle: {color: '#AE6D56',} }, {name: 'bbb',value: 12116,itemStyle: {color: '#CB8F34'} }, {name: 'ccc',value: 16616,itemStyle: {color: '#2B7CA7'} }]) let option: anyonMounted(() => {nextTick(() => {init()}) })const init = () => {//构建3d饼状图let myChart = proxy.$echarts.init(document.getElementById('cityGreenLand-charts'))// 传入数据生成 optionoption = getPie3D(optionData.value, 0.8);myChart.setOption(option);//是否需要label指引线,如果要就添加一个透明的2d饼状图并调整角度使得labelLine和3d的饼状图对齐,并再次setOption// option.series.push({// name: 'pie2d',// type: 'pie',// labelLine: {// length: 10,// length2: 10// },// startAngle: -20, //起始角度,支持范围[0, 360]。// clockwise: false,//饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式// radius: ['20%', '50%'],// center: ['50%', '50%'],// data: optionData.value,// itemStyle: {// opacity: 0// }// });myChart.setOption(option);bindListen(myChart); }const getPie3D = (pieData, internalDiameterRatio) => {//internalDiameterRatio:透明的空心占比let series = [];let sumValue = 0;let startValue = 0;let endValue = 0;let legendData = [];let legendBfb = [];let k = 1 - internalDiameterRatio;pieData.sort((a, b) => {return (b.value - a.value);});// 为每一个饼图数据,生成一个 series-surface 配置for (let i = 0; i < pieData.length; i++) {sumValue += pieData[i].value;let seriesItem: any = {name: typeof pieData[i].name === 'undefined' ? `series${i}` : pieData[i].name,type: 'surface',parametric: true,wireframe: {show: false},pieData: pieData[i],pieStatus: {selected: false,hovered: false,k: k},center: ['10%', '50%']};if (typeof pieData[i].itemStyle != 'undefined') {let itemStyle: any = {};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。legendData = [];legendBfb = [];for (let i = 0; i < series.length; i++) {endValue = startValue + series[i].pieData.value;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;let bfb = fomatFloat(series[i].pieData.value / sumValue, 4);legendData.push({name: series[i].name,value: bfb});legendBfb.push({name: series[i].name,value: bfb});}let boxHeight = getHeight3D(series, 26);//通过传参设定3d饼/环的高度,26代表26px// 准备待返回的配置项,把准备好的 legendData、series 传入。let option = {title: {text: "全球有效成分排行",left: 'left',borderColor: '#ccc',textStyle: {color: "#00A3FF",fontSize: 20}},legend: {data: legendData,orient: 'vertical',type: 'scroll',left: 680,top: 50,itemGap: 10,textStyle: {color: '#A1E2FF',},show: true,icon: "circle",formatter: function (param) {let item = legendBfb.filter(item => item.name == param)[0];let bfs = fomatFloat(item.value * 100, 2) + "%";return `${item.name} ${bfs}`;}},labelLine: {show: true,lineStyle: {color: '#7BC0CB'}},label: {show: true,position: 'outside',rich: {b: {color: '#7BC0CB',fontSize: 12,lineHeight: 20},c: {fontSize: 16,},},formatter: '{b|{b} \n}{c|{c}}{b| 亩}',},tooltip: {formatter: params => {if (params.seriesName !== 'mouseoutSeries' && params.seriesName !== 'pie2d') {let bfb = ((option.series[params.seriesIndex].pieData.endRatio - option.series[params.seriesIndex].pieData.startRatio) *100).toFixed(2);return `${params.seriesName}<br/>` +`<span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color};"></span>` +`${bfb}%`;}}},xAxis3D: {min: -1,max: 1},yAxis3D: {min: -1,max: 1},zAxis3D: {min: -1,max: 1},grid3D: {left: -100,top: 10,show: true,boxHeight: boxHeight, //圆环的高度viewControl: { //3d效果可以放大、旋转等,请自己去查看官方配置alpha: 35, //角度distance: 140,//调整视角到主体的距离,类似调整zoomrotateSensitivity: 0, //设置为0无法旋转zoomSensitivity: 0, //设置为0无法缩放panSensitivity: 0, //设置为0无法平移autoRotate: true //自动旋转},// axisLabel: {// show: true,//是否显示刻度 (刻度上的数字,或者类目)// // // interval: 5,//坐标轴刻度标签的显示间隔,在类目轴中有效。// formatter: function () {// // return;// },// textStyle: {// // color:'#000',//刻度标签样式,见图黑色刻度标签// color: function (value) {// return value >= 6 ? 'green' : 'red';//根据范围显示颜色,主页为值有效// },// // borderWidth:"",//文字的描边宽度。// // borderColor:'',//文字的描边颜色。// fontSize: 14,//刻度标签字体大小// fontWeight: '',//粗细// }// },// axisTick: {// show: true,//是否显示出刻度// // interval:100,//坐标轴刻度标签的显示间隔,在类目轴中有效// length: 5,//坐标轴刻度的长度// lineStyle: {//举个例子,样式太丑将就// color: '#000',//颜色// opacity: 1,// width: 5//厚度(虽然为宽表现为高度),对应length*(宽)// }// },// splitLine: {//平面上的分隔线。// show: true,//立体网格线 // // interval:100,//坐标轴刻度标签的显示间隔,在类目轴中有效// splitArea: {// show: true,// // interval:100,//坐标轴刻度标签的显示间隔,在类目轴中有效// areaStyle: {// color: ['rgba(250,250,250,0.3)', 'rgba(200,200,200,0.3)', 'rgba(250,250,250,0.3)', 'rgba(200,200,200,0.3)']// }// },// },// axisPointer: {//坐标轴指示线。// show: true,//鼠标在chart上的显示线// // lineStyle:{// // color:'#000',//颜色// // opacity:1,// // width:5//厚度(虽然为宽表现为高度),对应length*(宽)// // }// },},series: series};return option; }//获取3d丙图的最高扇区的高度 const getHeight3D = (series, height) => {series.sort((a, b) => {return (b.pieData.value - a.pieData.value);})return height * 25 / series[0].pieData.value; }// 生成扇形的曲面参数方程,用于 series-surface.parametricEquation const getParametricEquation = (startRatio, endRatio, isSelected, isHovered, k, h) => {// 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) * h * .1;}return Math.sin(v) > 0 ? 1 * h * .1 : -1;}}; }const fomatFloat = (num, n) => {var f = parseFloat(num);if (isNaN(f)) {return false;}f = Math.round(num * Math.pow(10, n)) / Math.pow(10, n); // n 幂 var s = f.toString();var rs = s.indexOf('.');//判定如果是整数,增加小数点再补0if (rs < 0) {rs = s.length;s += '.';}while (s.length <= rs + n) {s += '0';}return s; }const bindListen = (myChart) => {// 监听鼠标事件,实现饼图选中效果(单选),近似实现高亮(放大)效果。let selectedIndex = '';let hoveredIndex = '';// 监听点击事件,实现选中效果(单选)myChart.on('click', function (params) {// 从 option.series 中读取重新渲染扇形所需的参数,将是否选中取反。let isSelected = !option.series[params.seriesIndex].pieStatus.selected;let isHovered = option.series[params.seriesIndex].pieStatus.hovered;let k = option.series[params.seriesIndex].pieStatus.k;let startRatio = option.series[params.seriesIndex].pieData.startRatio;let endRatio = option.series[params.seriesIndex].pieData.endRatio;// 如果之前选中过其他扇形,将其取消选中(对 option 更新)if (selectedIndex !== '' && selectedIndex !== params.seriesIndex) {option.series[selectedIndex].parametricEquation = getParametricEquation(option.series[selectedIndex].pieData.startRatio, option.series[selectedIndex].pieData.endRatio, false, false, k, option.series[selectedIndex].pieData.value);option.series[selectedIndex].pieStatus.selected = false;}// 对当前点击的扇形,执行选中/取消选中操作(对 option 更新)option.series[params.seriesIndex].parametricEquation = getParametricEquation(startRatio, endRatio,isSelected,isHovered, k, option.series[params.seriesIndex].pieData.value);option.series[params.seriesIndex].pieStatus.selected = isSelected;// 如果本次是选中操作,记录上次选中的扇形对应的系列号 seriesIndexisSelected ? selectedIndex = params.seriesIndex : null;// 使用更新后的 option,渲染图表myChart.setOption(option);});// 监听 mouseover,近似实现高亮(放大)效果myChart.on('mouseover', function (params) {// 准备重新渲染扇形所需的参数let isSelected;let isHovered;let startRatio;let endRatio;let k;// 如果触发 mouseover 的扇形当前已高亮,则不做操作if (hoveredIndex === params.seriesIndex) {return;// 否则进行高亮及必要的取消高亮操作} else {// 如果当前有高亮的扇形,取消其高亮状态(对 option 更新)if (hoveredIndex !== '') {// 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 false。isSelected = option.series[hoveredIndex].pieStatus.selected;isHovered = false;startRatio = option.series[hoveredIndex].pieData.startRatio;endRatio = option.series[hoveredIndex].pieData.endRatio;k = option.series[hoveredIndex].pieStatus.k;// 对当前点击的扇形,执行取消高亮操作(对 option 更新)option.series[hoveredIndex].parametricEquation = getParametricEquation(startRatio, endRatio,isSelected,isHovered, k, option.series[hoveredIndex].pieData.value);option.series[hoveredIndex].pieStatus.hovered = isHovered;// 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空hoveredIndex = '';}// 如果触发 mouseover 的扇形不是透明圆环,将其高亮(对 option 更新)if (params.seriesName !== 'mouseoutSeries' && params.seriesName !== 'pie2d') {// 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 true。isSelected = option.series[params.seriesIndex].pieStatus.selected;isHovered = true;startRatio = option.series[params.seriesIndex].pieData.startRatio;endRatio = option.series[params.seriesIndex].pieData.endRatio;k = option.series[params.seriesIndex].pieStatus.k;// 对当前点击的扇形,执行高亮操作(对 option 更新)option.series[params.seriesIndex].parametricEquation = getParametricEquation(startRatio, endRatio,isSelected, isHovered, k, option.series[params.seriesIndex].pieData.value + 5);option.series[params.seriesIndex].pieStatus.hovered = isHovered;// 记录上次高亮的扇形对应的系列号 seriesIndexhoveredIndex = params.seriesIndex;}// 使用更新后的 option,渲染图表myChart.setOption(option);}});// 修正取消高亮失败的 bugmyChart.on('globalout', function () {// 准备重新渲染扇形所需的参数let isSelected;let isHovered;let startRatio;let endRatio;let k;if (hoveredIndex !== '') {// 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 true。isSelected = option.series[hoveredIndex].pieStatus.selected;isHovered = false;k = option.series[hoveredIndex].pieStatus.k;startRatio = option.series[hoveredIndex].pieData.startRatio;endRatio = option.series[hoveredIndex].pieData.endRatio;// 对当前点击的扇形,执行取消高亮操作(对 option 更新)option.series[hoveredIndex].parametricEquation = getParametricEquation(startRatio, endRatio,isSelected,isHovered, k, option.series[hoveredIndex].pieData.value);option.series[hoveredIndex].pieStatus.hovered = isHovered;// 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空hoveredIndex = '';}// 使用更新后的 option,渲染图表myChart.setOption(option);}); } </script><style lang="less" scoped> .water-eval-container {width: 100%;height: 100%;position: relative;}.cityGreenLand-charts {height: 100%;width: 100%;position: relative; }.bg {// position: absolute;// bottom: 90px;// left: 50%;// z-index: 2;// width: 250px;// height: 150px;// background: no-repeat center;// background-image: url('https://ks3-cn-beijing.ksyun.com/sxjg-elevator/datav-platform-2.0/images/chart_opacity_bg.png');// background-size: 100% 100%;// transform: translateX(-50%);// opacity: .5; } </style>