(<template>
<div class="chart-wrapper">
<div ref="pieChart" id="myChart"></div>
</div>
</template>
<script>
import {inject, ref, onMounted} from 'vue'
import 'echarts-gl'
export default {
name: 'pieChart',
props: {
tdata: {
type: String,
default: ''
},
tname: {
type: String,
default: ''
},
tcolor1: {
type: String,
default: ''
},
tcolor2: {
type: String,
default: ''
}
},
setup(props) {
let echarts = inject("ec")
let pieChart = ref(null)
onMounted(() => {
(, )
initEcharts(, )
})
// 渲染echarts图
const initEcharts = (tdata, tname) => {
let myChart = (pieChart.value)
// 传入数据生成option
// 传入数据生成 option
let option = getPie3D([ {
name: 'bb',
value: 80,
itemStyle: {
color: 1,
opacity: 0.2,
fontSize: 80
}
},
{
name: 'aa',
value: 14,
itemStyle: {
color: 2,
opacity: 0.7,
fontSize: 80
}
}], .001);
(option)
}
// 生成扇形的曲面参数方程，
function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h){
// 计算
let midRatio = (startRatio + endRatio) / 2;
let startRadian = startRatio * * 2;
let endRadian = endRatio * * 2;
let midRadian = midRatio * * 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 ? (midRadian) * 0.1 : 0;
let offsetY = isSelected ? (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: -,
max: * 3,
step: / 32
},
v: {
min: 0,
max: * 2,
step: / 20
},
x: function(u, v) {
if (u < startRadian) {
return offsetX + (startRadian) * (1 + (v) * k) * hoverRate;
}
if (u > endRadian) {
return offsetX + (endRadian) * (1 + (v) * k) * hoverRate;
}
return offsetX + (u) * (1 + (v) * k) * hoverRate;
},
y: function(u, v) {
if (u < startRadian) {
return offsetY + (startRadian) * (1 + (v) * k) * hoverRate;
}
if (u > endRadian) {
return offsetY + (endRadian) * (1 + (v) * k) * hoverRate;
}
return offsetY + (u) * (1 + (v) * k) * hoverRate;
},
z: function(u, v) {
if (u < - * 0.5) {
return (u);
}
if (u > * 2.5) {
return (u) * h * .1;
}
return (v) > 0 ? 1 * h * .1 : -1;
}
}
}
// 生成模拟3d饼图的配置项
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${i}` : pieData[i].name,
type: 'surface',
parametric: true,
wireframe: {
show: false
},
pieData: pieData[i],
pieStatus: {
selected: false,
hovered: false,
k: k
}
};
if (typeof pieData[i].itemStyle != 'undefined') {
let itemStyle = {};
typeof pieData[i]. != 'undefined' ? = pieData[i]. : null;
typeof pieData[i]. != 'undefined' ? = pieData[i]. : null;
= itemStyle;
}
(seriesItem);
}
// 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
// 向每个 series-surface 传入不同的参数方程 ，也就是实现每一个扇形。
for (let i = 0; i < series.length; i++) {
endValue = startValue + series[i].pieData.value;
series[i]. = startValue / sumValue;
series[i]. = endValue / sumValue;
series[i].parametricEquation = getParametricEquation(series[i]., series[i]., false, false, k, series[i].pieData.value);
startValue = endValue;
(series[i].name);
}
// 补充一个透明圆环，用于支撑高亮功能近似实现
({
name: 'mouseoutSeries',
type: 'surface',
parametric: true,
wireframe: {
show: false
},
itemStyle: {
opacity: 0
},
parametricEquation: {
u: {
min: 0,
max: * 2,
step: / 20
},
v: {
min: 0,
max: ,
step: / 20
},
x: function(u, v) {
return (v) * (u) + (u);
},
y: function(u, v) {
return (v) * (u) + (u);
},
z: function(u, v) {
return (v) > 0 ? 0.1 : -0.1;
}
}
});
let option = {
// legend: {
// data: legendData
// },
title: {
text: `${}-${}`,
top: 'bottom',
left: 'center',
textStyle: {
color: '#ffffff',
fontSize: 50,
fontWeight: 'bold'
}
},
tooltip: {
formatter: params => {
if ( !== 'mouseoutSeries') {
return `${}<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${};"></span>${[].pieData.value}`;
}
}
},
xAxis3D: {
min: -1,
max: 1
},
yAxis3D: {
min: -1,
max: 1
},
zAxis3D: {
min: -1,
max: 1
},
grid3D: {
show: false,
boxHeight: 4,
viewControl: {//3d效果可以放大、旋转等，请自己去查看官方配置
alpha: 16,
// beta: 40,
rotateSensitivity: 0,
zoomSensitivity: 0,
panSensitivity: 0,
autoRotate: true
},
//后处理特效可以为画面添加高光、景深、环境光遮蔽（SSAO）、调色等效果。可以让整个画面更富有质感。
postEffect: {//配置这项会出现锯齿，请自己去查看官方配置有办法解决
enable: true,
bloom: {
enable: true,
bloomIntensity: 0.1
},
SSAO: {
enable: true,
quality: 'medium',
radius: 2
}
}
},
series: series
}
return option
}
return {
pieChart,
getPie3D,
getParametricEquation
}
}
}
</script>
<style scoped>
.chart-wrapper {
width: 98%;
height: 500px;
/* border: 2px solid red; */
}
#myChart{
width: 100%;
height: 100%;
}
</style>)