vue3+ts+echarts 3D饼图

页面

<template>
    <div id="myChart" ref="myChart" class="pie-chart"></div>
</template>
<script lang='ts' setup>
import { getPie3D, getParametricEquation } from "../utils/largeScreen"
import { ref, reactive, getCurrentInstance, onMounted } from 'vue'
import * as echarts from "echarts";
onMounted(() => {
    intit()
})
function intit() {

    const charEle = document.getElementById('myChart') as HTMLElement;
    const echarts1 = echarts.init(charEle);
    //初始化挂载
    const optionData = [
        {
            value: 1089, name: '配发'
        },
        {
            value: 735, name: '销毁'
        },
        {
            value: 580, name: '借用'
        },
        {
            value: 484, name: '维修'
        },
        {
            value: 300, name: '其他'
        }
    ]
    const option = getPie3D(optionData, 0.8, 240, 180, 50, 0.6)
    echarts1.setOption(option)
    option.series.push({
        backgroundColor: '#fff',
        type: 'pie',
        label: {
            show: false
        },
        startAngle: -20, // 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
        avoidLabelOverlap: false,
        radius: ['20%', '50%'],
        center: ['50%', '50%'],
        data: optionData,
        itemStyle: {
            opacity: 0,  //这里必须是0，不然2d的图会覆盖在表面
            color: (params: any) => {
                let colorList = [
                    {
                        colorStart: '#0981FF',
                        colorEnd: '#83A1FF'
                    },
                    {
                        colorStart: '#63BBF0',
                        colorEnd: '#071829'
                    },
                    {
                        colorStart: '#1A171C',
                        colorEnd: '#DEC6FF'
                    },
                    {
                        colorStart: '#161510',
                        colorEnd: '#FFF189'
                    }, {
                        colorStart: '#0E1111',
                        colorEnd: '#FF9090'
                    }
                ]
                return new echarts.graphic.LinearGradient(1, 0, 0, 0, [{
                    offset: 0,
                    color: colorList[params.dataIndex]['colorStart']
                }, {
                    offset: 1,
                    color: colorList[params.dataIndex]['colorEnd']
                }])
            }
        },

        // 链接文字和图形的线是否显示
        labelLine: {
            show: false
        },
    })
    //添加配置
    echarts1.setOption(option)
    // 自适应
    window.onresize = function () {
        echarts1.resize()
    }
}


</script>
<style lang='less' scoped>
.pie-chart {
    width: 100%;
    height: 100%;
}
</style>

largeScreen.ts

/**
 * 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: any[], internalDiameterRatio: number, distance: any, alpha: any, pieHeight: any, opacity =0.8) => {
    const series = []
    let sumValue = 0
    let startValue = 0
    let endValue = 0
    let legendData = []
    let legendBfb: { name: any; value: string | boolean }[] = []
    const k = 1 - internalDiameterRatio
    pieData.sort((a: { value: number }, b: { value: number }) => {
        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++) {
        console.log(pieData[i], "pieData[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
            },
            center: ['50%', '50%']
        }
        console.log(pieData[i].itemStyle, "pieData[i].itemStyle")
        if (typeof pieData[i].itemStyle !== 'undefined') {
            console.log(pieData[i].itemStyle, "pieData[i].itemStyle")
            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 = {
        color: ["#3747B0", "#63BBF0", "#DFC6FF", "#FFD156", "#AD6565"],
        legend: {
            left: '70%',
            top: 'middle',
            orient: 'vertical',
            // 修改小图标的大小
            itemWidth: 8,
            itemHeight: 8,
            // 修改图例组件的文字为 12px
            textStyle: {
                color: "#fff",
                fontSize:fontSize(0.14),
                fontFamily: "DINAlternateBold"
            },
            show: true,
            data: legendData,
            itemGap: 10,
            // icon: 'circle',
            formatter: function (param: any) {
                const item = legendBfb.filter(item => item.name === param)[0]
                const bfs = fomatFloat(item.value * 100, 2) + '%'
                return `${item.name}  ${bfs}`
            },
        },
        labelLine: {
            show: false,
        },
        label: {
            show: false,
            position: 'outside',
            formatter: '{b} \n{c} {d}%'
        },
        tooltip: {
            show: false,
        },

        xAxis3D: {
            min: -0.7,
            max: 1
        },
        yAxis3D: {
            min: -0.7,
            max: 1
        },
        zAxis3D: {
            min: -0.7,
            max: 1
        },
        grid3D: {
            show: false,
            boxWidth: 100,
            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, // 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: number, endRatio: number, isSelected: boolean, isHovered: boolean, k: number, h: number) => {
    // 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: number, v: number) {
            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: number, v: number) {
            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: number, v: number) {
            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: any[], height: number) => {
    series.sort((a: { pieData: { value: number } }, b: { pieData: { value: number } }) => {
        return b.pieData.value - a.pieData.value
    })
    return (height * 25) / series[0].pieData.value
}

/**
 * 格式化浮点数
 */
const fomatFloat = (num: any, n: number) => {
    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
}
//获取屏幕宽度并计算比例
function fontSize(res: number) {
    let clientWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
    if (!clientWidth) return;
    let fontSize = 100 * (clientWidth / 3840);
    return res * fontSize;
}
export { getPie3D, getParametricEquation }