用echarts做了个裂开的3D饼图，参考 www.isqqw.com/viewer?id=1…
VUE代码
<template>
<div class="water-eval-container">
<div class="pie3D" id="pei15">
</div>
</div>
</template>
<script>
import echarts from 'echarts'
import 'echarts-gl';
export default {
name: "cityGreenLand",
props: {
// 数据
renderData: {
type: Array
}
},
components: {},
data() {
return {
optionData: [],
colors: [
'#066AE9', '#6BD39F', '#FECD5E', '#FF8400', '#F052AF', '#18FF00', '#000CFE',
'#0ED4FC', '#F3F286', '#9D33E3', '#FF00F0', '#FA014E', '#C8D823', '#5258D5'
]
}
},
watch: {
'renderData'(newVal) {
if (newVal && newVal.length) {
this.handlerData()
}
},
},
mounted() {
this.$nextTick(() => {
this.handlerData();
});
},
methods: {
handlerData() {
const optionsData = [
{
name: 'aa',
value: 11,
itemStyle: {
color: '#41adf8',
// opacity: 1,
},
},
{
name: 'cc',
value: 33,
itemStyle: {
color: '#ffa100',
// opacity: 1,
},
}
];
this.init(optionsData);
},
init(data) {
//构建3d饼状图
let myChart = this.$echarts.init(document.getElementById('pei15'));
const series = this.getPie3D(data, 0.8, 240, 28, 26, 0.5);
series.push({
name: 'pie2d',
type: 'pie',
label: {
opacity: 1,
fontSize: 13,
lineHeight: 20,
},
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: ['20%', '58%'],
center: ['50%', '50%'],
data: data,
itemStyle: {
opacity: 0,
},
});
// 传入数据生成 option
let option = {
legend: {
tooltip: {
show: true,
},
data: ['aa', 'cc'],
bottom: '10%',
textStyle: {
color: '#fff',
fontSize: 12,
},
},
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>` +
`${bfb}%`
);
}
},
},
title: {
text: '3D 饼图',
x: 'center',
top: '20',
textStyle: {
color: '#fff',
fontSize: 22,
},
},
backgroundColor: '#333',
labelLine: {
show: true,
lineStyle: {
color: '#7BC0CB',
},
},
label: {
show: true,
position: 'outside',
formatter: '{b} \n{c} ({d}%)',
},
xAxis3D: {
min: -1,
max: 1,
},
yAxis3D: {
min: -1,
max: 1,
},
zAxis3D: {
min: -1,
max: 1,
},
grid3D: {
show: false,
boxHeight: 30, // 三维笛卡尔坐标系在三维场景中的高度
viewControl: {
alpha: 40,
beta: 40,
distance: 500, //调整视角到主体的距离，类似调整zoom
rotateSensitivity: 0, // 设置为0无法旋转
zoomSensitivity: 0, // 设置为0无法缩放
panSensitivity: 0, // 设置为0无法平移
autoRotate: false, // 自动旋转
},
},
series: series,
};
myChart.setOption(option);
// this.bindListen(myChart);
},
/**
* 绘制3d图
* @param pieData 总数据
* @param internalDiameterRatio:透明的空心占比
* @param distance 视角到主体的距离
* @param alpha 旋转角度
* @param pieHeight 立体的高度
* @param opacity 饼或者环的透明度
*/
getPie3D(pieData, internalDiameterRatio, distance, alpha, pieHeight, opacity = 1) {
const series = [];
let sumValue = 0;
let startValue = 0;
let endValue = 0;
const legendData = [];
const k =
typeof internalDiameterRatio !== 'undefined'
? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
: 1 / 3;
// 为每一个饼图数据，生成一个 series-surface 配置
for (let i = 0; i < pieData.length; i += 1) {
sumValue += pieData[i].value;
const seriesItem = {
name: typeof pieData[i].name === 'undefined' ? `series${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') {
const itemStyle = {};
if (typeof pieData[i].itemStyle.color !== 'undefined') {
itemStyle.color = pieData[i].itemStyle.color;
}
if (typeof pieData[i].itemStyle.opacity !== 'undefined') {
itemStyle.opacity = pieData[i].itemStyle.opacity;
}
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 += 1) {
endValue = startValue + series[i].pieData.value;
series[i].pieData.startRatio = startValue / sumValue;
series[i].pieData.endRatio = endValue / sumValue;
series[i].parametricEquation = this.getParametricEquation(
series[i].pieData.startRatio,
series[i].pieData.endRatio,
false,
false,
k,
10
);
startValue = endValue;
legendData.push(series[i].name);
}
return series;
},
// 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h) {
// 计算
const midRatio = (startRatio + endRatio) / 2;
const startRadian = startRatio * Math.PI * 2;
const endRadian = endRatio * Math.PI * 2;
const 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;
}
isSelected = true
// 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）
const offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
const 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）
const 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;
},
};
}
}
}
</script>
<style lang="scss">
.water-eval-container {
width: 100%;
height: 100%;
}
.pie3D {
width: 100%;
height: 100%;
}
</style>
