vue3+echarts实现3D饼图
vue
vuejs/vue: 是一个用于构建用户界面的 JavaScript 框架，具有简洁的语法和丰富的组件库，可以用于开发单页面应用程序和多页面应用程序。
项目地址：https://gitcode.com/gh_mirrors/vu/vue
免费下载资源
·
示列1
示列2
实现步骤;
第一步；
npm install echarts --save
npm install --save echarts-gl
第二步；
封装pie3D组件
<template>
<div class="chart-container">
<div class="chart" ref="echartRef" style="width: 100%; height: 300px"></div>
</div>
</template>
<script setup lang="ts">
import * as echarts from "echarts";
import "echarts-gl";
import {
getPie3D,
getParametricEquation,
} from "./echart.js";
import { ref, shallowRef, onMounted, nextTick } from "vue";
const props = defineProps({
data: {
type: Array,
required: true,
},
internalDiameterRatio: {
type: Number,
default: 0.6,
},
distance: {
type: Number,
default: 180,
},
alpha: {
type: Number,
default: 26,
},
pieHeight: {
type: Number,
default: 18,
},
opacity: {
type: Number,
default: 0.5,
},
});
const color = ["#3cd6b7", "#fe9326", "#124fb7", "#383893"];
const optionData = ref(props.data);
let option = {};
const echartRef = shallowRef<HTMLElement>();
const echart = shallowRef<echarts.ECharts>();
onMounted(() => {
nextTick(() => {
setLabel();
initChart();
});
window.onresize = changeSize;
});
const setLabel = () => {
optionData.value.forEach((item, index) => {
item.itemStyle = {
color: color[index],
};
item.label = {
normal: {
show: false,
color: color[index],
position: "right",
offset: [0, 3],
formatter: ["{d|{d}%}", "————", "{b|{b}}"].join("\n"),
rich: {
b: {
lineHeight: 25,
align: "left",
color: color[index],
},
c: {
fontSize: 22,
textShadowColor: "#1c90a6",
textShadowOffsetX: 0,
textShadowOffsetY: 2,
textShadowBlur: 5,
color: color[index],
},
d: {
color: color[index],
align: "left",
},
},
},
};
item.labelLine = {
normal: {
length2: 30,
lineStyle: {
width: 1,
color: color[index],
},
},
};
});
};
const initChart = () => {
echart.value = echarts.init(echartRef.value);
option = getPie3D(
optionData.value,
props.internalDiameterRatio,
props.distance,
props.alpha,
props.pieHeight,
props.opacity
);
echart.value.setOption(option);
option.series.push({
name: "信用评价",
backgroundColor: "transparent",
type: "pie",
label: {
opacity: 1,
fontSize: 13,
lineHeight: 20,
show: false,
},
startAngle: -40,
clockwise: false,
data: optionData.value,
itemStyle: {
opacity: 0,
},
});
echart.value.setOption(option);
bindListen(echart.value);
};
const bindListen = (myChart) => {
let selectedIndex = "";
let hoveredIndex = -1;
myChart.on("mouseover", (params) => {
let isSelected;
let isHovered;
let startRatio;
let endRatio;
let k;
if (hoveredIndex === params.seriesIndex) {
// Do nothing
} else {
if (hoveredIndex !== "" && hoveredIndex !== -1) {
isSelected = option.series[hoveredIndex].pieStatus.selected;
isHovered = false;
startRatio = option.series[hoveredIndex].pieData.startRatio;
endRatio = option.series[hoveredIndex].pieData.endRatio;
k = option.series[hoveredIndex].pieStatus.k;
if (
typeof startRatio !== "undefined" &&
typeof endRatio !== "undefined" &&
typeof k !== "undefined"
) {
option.series[hoveredIndex].parametricEquation =
getParametricEquation(
startRatio,
endRatio,
isSelected,
isHovered,
k,
option.series[hoveredIndex].pieData.value
);
}
option.series[hoveredIndex].pieStatus.hovered = isHovered;
hoveredIndex = "";
}
if (
params.seriesName !== "mouseoutSeries" &&
params.seriesName !== "信用评价"
) {
isSelected = option.series[params.seriesIndex].pieStatus.selected;
isHovered = true;
startRatio = option.series[params.seriesIndex].pieData.startRatio;
endRatio = option.series[params.seriesIndex].pieData.endRatio;
k = option.series[params.seriesIndex].pieStatus.k;
if (
typeof startRatio !== "undefined" &&
typeof endRatio !== "undefined" &&
typeof k !== "undefined"
) {
option.series[params.seriesIndex].parametricEquation =
getParametricEquation(
startRatio,
endRatio,
isSelected,
isHovered,
k,
option.series[params.seriesIndex].pieData.value + 60
);
option.series[params.seriesIndex].pieStatus.hovered = isHovered;
hoveredIndex = params.seriesIndex;
}
}
myChart.setOption(option);
}
});
myChart.on("globalout", () => {
let isSelected;
let isHovered;
let startRatio;
let endRatio;
let k;
if (hoveredIndex !== "" && hoveredIndex !== -1) {
isSelected = option.series[hoveredIndex].pieStatus.selected;
isHovered = false;
k = option.series[hoveredIndex].pieStatus.k;
startRatio = option.series[hoveredIndex].pieData.startRatio;
endRatio = option.series[hoveredIndex].pieData.endRatio;
if (
typeof startRatio !== "undefined" &&
typeof endRatio !== "undefined" &&
typeof k !== "undefined"
) {
option.series[hoveredIndex].parametricEquation = getParametricEquation(
startRatio,
endRatio,
isSelected,
isHovered,
k,
option.series[hoveredIndex].pieData.value
);
}
option.series[hoveredIndex].pieStatus.hovered = isHovered;
hoveredIndex = "";
}
myChart.setOption(option);
});
};
const changeSize = () => {
echart.value && echart.value.resize();
};
</script>
第三步；
创建echart.js
/**
* 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
*/
const getPie3D = (
pieData,
internalDiameterRatio,
distance,
alpha,
pieHeight,
opacity = 1
) => {
const series = [];
let sumValue = 0;
let startValue = 0;
let endValue = 0;
let legendData = [];
let legendBfb = [];
const k = 1 - internalDiameterRatio; //设置是否镂空
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;
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 = {};
itemStyle.color =
typeof pieData[i].itemStyle.color !== "undefined"
? pieData[i].itemStyle.color
: opacity;
itemStyle.opacity =
typeof pieData[i].itemStyle.opacity !== "undefined"
? pieData[i].itemStyle.opacity
: 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。
legendData = [];
legendBfb = [];
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;
const bfb = fomatFloat(series[i].pieData.value / sumValue, 4);
legendData.push({
name: series[i].name,
value: bfb,
});
legendBfb.push({
name: series[i].name,
value: bfb,
});
}
const boxHeight = getHeight3D(series, pieHeight); // 通过pieHeight设定3d饼/环的高度，单位是px
// 准备待返回的配置项，把准备好的 legendData、series 传入。
const option = {
legend: {
show: true,
data: legendData,
orient: "vertical",
right: "35%",
top: "center",
itemGap: 10,
icon: "circle",
formatter: function (param) {
const item = legendBfb.filter((item) => item.name === param)[0];
return ` ${item.name}`;
},
textStyle: {
color: "#fff",
},
},
labelLine: {
show: true,
lineStyle: {
color: "#fff",
},
},
label: {
show: true,
position: "outside",
formatter: "{b} \n{c} {d}%",
},
tooltip: {
backgroundColor: "#033b77",
borderColor: "#21f2c4",
textStyle: {
color: "#fff",
fontSize: 13,
},
formatter: (params) => {
if (
params.seriesName !== "mouseoutSeries" &&
params.seriesName !== "信用评价"
) {
const bfb = (
(option.series[params.seriesIndex].pieData.endRatio -
option.series[params.seriesIndex].pieData.startRatio) *
100
).toFixed(2);
return (
`${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: boxHeight, // 圆环的高度
viewControl: {
// 3d效果可以放大、旋转等，请自己去查看官方配置
alpha, // 角度
distance: 250, // 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;
};
/**
* 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
*/
const getParametricEquation = (
startRatio,
endRatio,
isSelected,
isHovered,
k,
h
) => {
startRatio = startRatio !== undefined ? startRatio : 0;
endRatio = endRatio !== undefined ? endRatio : 1;
// 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;
}
// 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）
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;
},
};
};
/**
* 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 * 25) / series[0].pieData.value;
};
/**
* 格式化浮点数
*/
const fomatFloat = (num, n) => {
let f = parseFloat(num);
if (isNaN(f)) {
return false;
}
f = Math.round(num * Math.pow(10, n)) / Math.pow(10, n); // n 幂
let s = f.toString();
let rs = s.indexOf(".");
// 判定如果是整数，增加小数点再补0
if (rs < 0) {
rs = s.length;
s += ".";
}
while (s.length <= rs + n) {
s += "0";
}
return s;
};
export { getPie3D, getParametricEquation };
第四步；
引入封装组件使用
<!-- 3D饼图 -->
<template>
<div class="chart-container">
<Pie3D :data="pieData" />
</div>
</template>
<script setup lang="ts">
import Pie3D from "@/views/demo/echarts3D/components/pie3D.vue";
const pieData = ref<Array<any>>([
{
name: "A类企业",
value: 176,
},
{
name: "B类企业",
value: 288,
},
{
name: "C类企业",
value: 88,
},
{
name: "D类企业",
value: 78,
},
]);
</script>
<style scoped>
.chart-container {
height: 100vh;
background-color: #17233b;
}
</style>
如果需要镂空 只需要传入internalDiameterRatio 0.6即可
<Pie3D :data="pieData" :internalDiameterRatio="0.6" />更新2024-06-24 解决数据为0的时候显示问题
// 判断所有数据是否均为0，如果是0，则设置一个最小值，防止出现扇形的面积为0的情况
if (pieData.every((item) => item.value === 0)) {
sumValue += 1;
} else {
sumValue += pieData[i].value;
}完整代码如下；
/**
* 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
*/
const getPie3D = (
pieData,
internalDiameterRatio,
distance,
alpha,
pieHeight,
opacity = 1
) => {
const series = [];
let sumValue = 0;
let startValue = 0;
let endValue = 0;
let legendData = [];
let legendBfb = [];
const k = 1 - internalDiameterRatio; //设置是否镂空
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++) {
// 判断所有数据是否均为0，如果是0，则设置一个最小值，防止出现扇形的面积为0的情况
if (pieData.every((item) => item.value === 0)) {
sumValue += 1;
} else {
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 = {};
itemStyle.color =
typeof pieData[i].itemStyle.color !== "undefined"
? pieData[i].itemStyle.color
: opacity;
itemStyle.opacity =
typeof pieData[i].itemStyle.opacity !== "undefined"
? pieData[i].itemStyle.opacity
: 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。
legendData = [];
legendBfb = [];
for (let i = 0; i < series.length; i++) {
if (pieData.every((item) => item.value === 0)) {
endValue = startValue + 1;
} else {
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;
const bfb = fomatFloat(series[i].pieData.value / sumValue, 4);
legendData.push({
name: series[i].name,
value: bfb,
});
legendBfb.push({
name: series[i].name,
value: bfb,
});
}
const boxHeight = getHeight3D(series, pieHeight); // 通过pieHeight设定3d饼/环的高度，单位是px
// 准备待返回的配置项，把准备好的 legendData、series 传入。
const option = {
title: {
text: "Referer of a Website",
subtext: "Fake Data",
left: "center",
top: "10%",
textStyle: {
color: "#fff", // 将文字颜色设置为白色
},
subtextStyle: {
color: "#fff", // 将 "Fake Data" 文字颜色设置为白色
},
},
legend: {
show: true,
data: legendData,
orient: "vertical",
right: "35%",
top: "center",
itemGap: 10,
icon: "circle",
formatter: function (param) {
const item = legendBfb.filter((item) => item.name === param)[0];
return ` ${item.name}`;
},
textStyle: {
color: "#fff",
},
},
labelLine: {
show: true,
lineStyle: {
color: "#fff",
},
},
label: {
show: true,
position: "outside",
formatter: "{b} \n{c} {d}%",
},
tooltip: {
backgroundColor: "#033b77",
borderColor: "#21f2c4",
textStyle: {
color: "#fff",
fontSize: 13,
},
formatter: (params) => {
if (
params.seriesName !== "mouseoutSeries" &&
params.seriesName !== "信用评价"
) {
const bfb = (
(option.series[params.seriesIndex].pieData.endRatio -
option.series[params.seriesIndex].pieData.startRatio) *
100
).toFixed(2);
return (
`${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: boxHeight, // 圆环的高度
viewControl: {
// 3d效果可以放大、旋转等，请自己去查看官方配置
alpha, // 角度
distance: 250, // 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;
};
/**
* 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
*/
const getParametricEquation = (
startRatio,
endRatio,
isSelected,
isHovered,
k,
h
) => {
startRatio = startRatio !== undefined ? startRatio : 0;
endRatio = endRatio !== undefined ? endRatio : 1;
// 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;
}
// 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）
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;
},
};
};
/**
* 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 * 25) / series[0].pieData.value;
};
/**
* 格式化浮点数
*/
const fomatFloat = (num, n) => {
let f = parseFloat(num);
if (isNaN(f)) {
return false;
}
f = Math.round(num * Math.pow(10, n)) / Math.pow(10, n); // n 幂
let s = f.toString();
let rs = s.indexOf(".");
// 判定如果是整数，增加小数点再补0
if (rs < 0) {
rs = s.length;
s += ".";
}
while (s.length <= rs + n) {
s += "0";
}
return s;
};
export { getPie3D, getParametricEquation };
GitHub 加速计划 / vu / vue
207.53 K
33.66 K
下载
vuejs/vue: 是一个用于构建用户界面的 JavaScript 框架，具有简洁的语法和丰富的组件库，可以用于开发单页面应用程序和多页面应用程序。
最近提交(Master分支：2 个月前 )
73486cb5
* chore: fix link broken
Signed-off-by: snoppy <michaleli@foxmail.com>
* Update packages/template-compiler/README.md [skip ci]
---------
Signed-off-by: snoppy <michaleli@foxmail.com>
Co-authored-by: Eduardo San Martin Morote <posva@users.noreply.github.com> 4 个月前
e428d891
Updated Browser Compatibility reference. The previous currently returns HTTP 404. 4 个月前
旨在为数千万中国开发者提供一个无缝且高效的云端环境，以支持学习、使用和贡献开源项目。
更多推荐
4
0- 0
已为社区贡献1条内容
所有评论(0)