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效果图:
在package.json文件中添加
"dependencies": {
"echarts": "^5.1.2"
"echarts-gl": "^1.1.0",
// "echarts-gl": "^2.0.8"
},
如图
import Vue from 'vue'
import * as echarts from 'echarts'
import 'echarts-gl' // 3d图表库
Vue.prototype.$echarts = echarts
完整代码如下(示例):
<template>
<div class="main">
<div class="container">
<div ref="myChart" class="myChart"></div>
<div class="bottom-img"></div>
</div>
</div>
</template>
<script> import "echarts-gl"; export default { data() { return { myChart: null, seriesData: [], }; }, mounted() { this.getList(); window.addEventListener("resize", () => { this.reloadChart(); }); }, methods: { getList() { this.seriesData = [ { name: "canshu1", value: 58, }, { name: "canshu2", value: 3, }, { name: "canshu3", value: 15, }, { name: "canshu4", value: 30, }, ]; this.initChart(this.seriesData); }, initChart(data) { if (data.length == 0) return; this.myChart = this.$echarts.init(this.$refs.myChart); let colors = [ "RGBA(36, 154, 163, 1)", "RGBA(245, 169, 64, 1)", "RGBA(240, 136, 64, 1)", "RGBA(123, 198, 239, 1)", "RGBA(245, 169, 64, 1)", "RGBA(240, 136, 64, 1)", "RGBA(123, 198, 239, 1)", ]; const getPie3D = (pieData, internalDiameterRatio) => { //internalDiameterRatio:透明的空心占比 let series = []; let sumValue = 0; let startValue = 0; let endValue = 0; let k = 1 - internalDiameterRatio; pieData.sort((a, b) => { return b.value - a.value; }); // 为每一个饼图数据,生成一个 series-surface 配置 for (let i = 0; i < pieData.length; i++) { sumValue += pieData[i].value; let seriesItem = { name: typeof pieData[i].name === "undefined" ? `series${i}` : pieData[i].name, type: "surface", parametric: true, wireframe: { show: false, }, pieData: pieData[i], pieStatus: { selected: false, hovered: false, k: k, }, radius: "20%", center: ["10%", "20%"], }; if (typeof colors[i] != "undefined") { let itemStyle = {}; typeof colors[i] != "undefined" ? (itemStyle.color = colors[i]) : 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; 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 boxHeight = getHeight3D(series, 15); //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 = { labelLine: { show: true, lineStyle: { color: "#7BC0CB", }, }, legend: { orient: "vertical", top: "center", right: this.fontSize(0.1), data: data, icon: "circle", itemWidth: this.fontSize(0.13), //矩形宽度 itemHeight: this.fontSize(0.13), //矩形高度 formatter: (res) => { let str = ""; series.forEach((ele) => { if (res == ele.name) { let bfb = ( (ele.pieData.endRatio - ele.pieData.startRatio) * 100 ).toFixed(2); if (bfb == "NaN") { str = "{e|" + ele.pieData.name + "}" + "{a|" + ele.pieData.value + " " + 0 + "%}"; } else { str = "{e|" + ele.pieData.name + "} " + "{a| " + ele.pieData.value + "}{b| " + bfb + "%}"; } } }); return str; }, textStyle: { color: "#fff", fontSize: this.fontSize(0.35), padding: [5, 0], rich: { a: { fontSize: this.fontSize(0.35), color: "#00DCF6", // width: this.fontSize(0.5), }, b: { fontSize: this.fontSize(0.35), color: "#00DCF6", // width: this.fontSize(0.85), }, e: { fontSize: this.fontSize(0.35), // width: this.fontSize(1.0), }, }, }, }, label: { show: false, formatter: "", }, tooltip: { show: true, 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: { show: false, boxHeight: 10, //圆环的高度 left: -this.fontSize(2.2), top: -this.fontSize(0.1), //3d饼图的位置 viewControl: { //3d效果可以放大、旋转等,请自己去查看官方配置 alpha: 25, //角度 distance: 200, //调整视角到主体的距离,类似调整zoom rotateSensitivity: 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: false, //自动旋转 }, }, 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 * this.fontSize(1)) / 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 * 0.1; } return Math.sin(v) > 0 ? 1 * h * 0.1 : -1; }, }; }; let option = getPie3D(data, 0.8); //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: { show: false, length: 15, length2: 15, }, startAngle: -this.fontSize(0.3), //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: [this.fontSize(1.3) + "%", this.fontSize(1.4) + "%"], center: [this.fontSize(1.5) + "%", this.fontSize(1.8) + "%"], //指示线的位置 data: data, itemStyle: { opacity: 0, }, }); this.myChart.setOption(option); }, // 字体自适应。 fontSize(res) { const clientWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth; if (!clientWidth) return; const fontSize = 40 * (clientWidth / 1920); return res * fontSize; }, }, //重新加载图表 reloadChart() { this.disposeChart(); this.initChart(this.seriesData); }, //销毁图表以及重置各个数据 disposeChart() { if (this.myChart) { this.myChart.dispose(); } }, beforeDestroy() { this.disposeChart(); }, }; </script>
<style lang="scss" scoped> .main { width: 100%; height: 100%; position: relative; .container { width: calc(100% - 0.3rem); margin: 0 auto; height: 100%; position: relative; .myChart { width: 100%; height: 100%; z-index: 9; } .bottom-img { width: 6.6rem; height: 3.1rem; background: url(~@/assets/images/bottom_right.png) no-repeat; background-size: 100% 100%; // margin-top: -2.5rem; position: relative; top: -4.5rem; left: 0.13rem; } } } </style>
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