引入echarts和echarts-gl
main.js
import * as echarts from "echarts";
import 'echarts-gl'
Vue.prototype.$echarts = echarts;
页面
<template>
<div id="echart" style="height: 750px"></div>
</template>
<script>
export default {
data() {
return {
data: [
{ name: "a", value: 10 },
{ name: "b", value: 30 },
{ name: "c", value: 22 },
{ name: "d", value: 12 },
],
};
},
mounted() {
this.mastery(this.data);
},
methods: {
mastery(data) {
var echarts = require("echarts");
var myChart = echarts.init(document.querySelector("#echart"));
var color = ["#3356d2", "#6a43f3", "#f3a722", "#5de8ec"];
var data = data;
data.forEach((item, index) => {
item.itemStyle = {
color: color[index],
opacity: 0.6,
};
});
function 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 = 1;
// 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;
},
};
}
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,
value:
typeof pieData[i].value === "undefined"
? `series${i}`
: pieData[i].value,
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;
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);
}
// 补充一个透明的圆环，用于支撑高亮功能的近似实现。
series.push(
{
name: "mouseoutSeries",
type: "surface",
parametric: true,
wireframe: {
show: false,
},
itemStyle: {
opacity: 0,
},
parametricEquation: {
u: {
min: 0,
max: Math.PI * 2,
step: Math.PI / 20,
},
v: {
min: 0,
max: Math.PI,
step: Math.PI / 20,
},
x: function (u, v) {
return Math.sin(v) * Math.sin(u) + Math.sin(u);
},
y: function (u, v) {
return Math.sin(v) * Math.cos(u) + Math.cos(u);
},
z: function (u, v) {
return Math.cos(v) > 0 ? 0.1 : -0.1;
},
},
},
{
name: "pie2d",
type: "pie",
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%", "40%"],
center: ["50%", "50%"], //指示线的位置
data: data,
itemStyle: {
opacity: 0,
},
}
);
// 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: '#fff'
},
},
label: {
show: true,
position: "outside",
formatter: ["{a|{b}}\n{hr|}\n{c|{c}}"].join("\n"),
rich: {
hr: {
backgroundColor: "#fff",
borderRadius: 5,
width: 5,
height: 5,
padding: [0, -5],
opacity: 1,
},
a: {
fontSize: 14,
lineHeight: 30,
fontWeight: "400",
// color: '#fff',
opacity: 1,
padding: [30, 10, 0, 10],
},
c: {
fontSize: 14,
fontWeight: "400",
// color: '#fff',
opacity: 1,
padding: [5, 10, 10, 10],
},
},
},
xAxis3D: {
min: -1,
max: 1,
},
yAxis3D: {
min: -1,
max: 1,
},
zAxis3D: {
min: -1,
max: 1,
},
grid3D: {
show: false,
boxHeight: 30,
viewControl: {
//3d效果可以放大、旋转等，请自己去查看官方配置
alpha: 40,
beta: 40,
distance: 500,
rotateSensitivity: 0,
zoomSensitivity: 0,
panSensitivity: 0,
autoRotate: false,
},
},
series: series,
};
return option;
}
let option = getPie3D(data, 0.71);
if (option && typeof option === "object") {
myChart.setOption(option);
}
},
},
};
</script>
这是我在简书上看到的封装的代码，然后自己改成了vue里的方法
这是原文 www.jianshu.com/p/1d6f8510a…
成图 样式自行改动
