效果如图：
1、图表依赖：echartjs、echart-gl
npm install echarts
npm install echarts-gl
2、DOM
<!--3D饼图 GO-->
<div class="m-warning">
<div class="warning-pie" id="pieChart"></div>
</div>
3、JS引入，与处理
①引入
import echarts from 'echarts'
import 'echarts-gl'
②处理
export default {
components: {},
data() {
return {}
},
mounted() { //加载完DOM渲染
this.handlePieChart();
},
methods: {
/*
*预警情况饼图
*/
handlePieChart(){
// let myMidd = this.$echarts.init(document.getElementById('bzt1'))
var echarts = require('echarts');
var myChart = echarts.init(document.getElementById('pieChart'));
function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, height) {
// 计算
// console.log("getParametricEquation")
let midRatio = (startRatio + endRatio) / 2;
let startRadian = startRatio * Math.PI * 2;
let endRadian = endRatio * Math.PI * 2;
let midRadian = midRatio * Math.PI * 2;
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;
}
};
}
// 3D饼图的配置项，同echarjs的series
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;
// 3个饼图参数
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
},
label: {
normal: {
position: 'inner',
show : false
}
},
labelLine: {
normal: {
lineStyle: {
color: 'rgba(255, 255, 255, 0.3)'
},
smooth: 0.2,
length: 50,
length2:100,
}
},
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);
}
// 准备待返回的配置项，把准备好的 legendData、series 传入。
let option = {
tooltip: {
formatter: params => {
if (params.seriesName !== 'mouseoutSeries') {
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}`;
}
}
},
legend: {
data: legendData,
itemWidth:15,//色标图宽
itemHeight:7,//色标图高
orient: 'vertical',//垂直显示
top:5,
right:60,
itemGap:25,//色标间隔
textStyle: {
color: '#fff',
fontSize: 14
}
},
xAxis3D: {
min: -1,
max: 1
},
yAxis3D: {
min: -1,
max: 1
},
zAxis3D: {
min: -1,
max: 1
},
grid3D: {
show: false,
boxHeight: 20,
top: '-30',
left:'-70',
bottom: '80%',
environment: "auto",
viewControl: {
distance: 200,//远近
alpha: 25,//饼图X轴旋转
beta: 0,//饼图Y轴旋转
},
},
series: series
};
return option
}
let option = getPie3D([{
name: 'SOS',
value: 3,
itemStyle: {
opacity: 1,
color: 'rgba(228,220,65,1)',
}
},
{
name: '掉线',
value: 1,
itemStyle: {
opacity: 1,
color: 'rgba(77,157,229,1)',
}
},
{
name: '脱岗',
value: 1,
itemStyle: {
opacity: 1,
color: 'rgba(94,209,213,1)',
}
}
], 2);
myChart.setOption(option)
}
}
}
4、css3
.m-warning {
width: 450px;
height: 270px;
overflow: hidden;
float: right;
margin:60px 0 0 60px;
.warning-pie{
width:450px;
height: 210px;
}
}
完整可运行、可预览代码：
https://www.zeropo.com.cn/dashujumuban/112.html
以上，谢谢观看！