436 lines
13 KiB
Vue
436 lines
13 KiB
Vue
<template>
|
||
<div ref="chartRef" :style="{ width: width, height: height }"></div>
|
||
</template>
|
||
|
||
<script setup>
|
||
import { ref, watch, onMounted, nextTick } from 'vue';
|
||
import { merge, cloneDeep } from 'lodash';
|
||
import { useEcharts } from '@/hooks/useEcharts';
|
||
|
||
defineOptions({ name: 'NewHyalineCake' });
|
||
|
||
let selectedIndex = null;
|
||
let hoveredIndex = null;
|
||
|
||
const props = defineProps({
|
||
chartData: {
|
||
type: Array,
|
||
default: () => [
|
||
{ name: '项目一', value: 60 },
|
||
{ name: '项目二', value: 44 },
|
||
{ name: '项目三', value: 32 },
|
||
],
|
||
},
|
||
option: {
|
||
type: Object,
|
||
default: () => ({
|
||
k: 1, // 控制内外径关系的系数，1 表示无内径，值越小内径越大
|
||
itemGap: 0.1, // 扇形的间距
|
||
itemHeight: 120, // 扇形高度（影响z轴拉伸程度）
|
||
autoItemHeight: 0, // 自动计算扇形高度时使用的系数（>0时 itemHeight 失效，使用 autoItemHeight * value ）
|
||
opacity: 0.6, // 透明度设置
|
||
legendSuffix: '', // 图例后缀
|
||
// TODO series
|
||
}),
|
||
},
|
||
width: {
|
||
type: String,
|
||
default: '100%',
|
||
},
|
||
height: {
|
||
type: String,
|
||
default: '100%',
|
||
},
|
||
});
|
||
|
||
const emit = defineEmits(['click']);
|
||
|
||
const chartRef = ref(null);
|
||
const { setOptions, getInstance } = useEcharts(chartRef);
|
||
|
||
const chartOption = ref({});
|
||
|
||
/**
|
||
* 获取 parametric 曲面方程
|
||
* @param {Number} startRatio 起点弧度
|
||
* @param {Number} endRatio 终点弧度
|
||
* @param {Boolean} isSelected 是否选中
|
||
* @param {Boolean} isHovered 是否高亮
|
||
* @param {Number} k 饼图内径/外径的占比
|
||
* @param {Number} h 饼图高度
|
||
* @param {Array} offsetZ 浮动系数
|
||
* @return {Object} parametric 曲面方程
|
||
*/
|
||
function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h, offsetZ = 0) {
|
||
// console.log('getParametricEquation params :>> ', startRatio, endRatio, isSelected, isHovered, k, h, offsetZ);
|
||
const midRatio = (startRatio + endRatio) / 2;
|
||
const startRadian = startRatio * Math.PI * 2;
|
||
const endRadian = endRatio * Math.PI * 2;
|
||
const midRadian = midRatio * Math.PI * 2;
|
||
|
||
// 如果整个饼只剩一个扇形，则不实现选中效果
|
||
if (startRatio === 0 && endRatio === 1) {
|
||
isSelected = false;
|
||
}
|
||
// k 取默认值 1/3（扇形内径/外径），如果传入 k 则使用传入值
|
||
k = typeof k !== 'undefined' ? k : 1 / 3;
|
||
|
||
// 计算选中效果的偏移量（基于扇形中心角度）
|
||
const offsetX = isSelected ? Math.cos(midRadian) * props.option.itemGap : 0;
|
||
const offsetY = isSelected ? Math.sin(midRadian) * props.option.itemGap : 0;
|
||
// 计算高亮时的放大比例（未高亮时为1）
|
||
const hoverRate = isHovered ? 1.05 : 1;
|
||
|
||
return {
|
||
u: {
|
||
// u 参数控制饼的周向角度：从 -π 到 3π，可以完整绘制一圈
|
||
min: -Math.PI,
|
||
max: Math.PI * 3,
|
||
step: Math.PI / 32,
|
||
},
|
||
v: {
|
||
// v 从 0 - 2π 参数控制扇形的径向方向（厚度方向）
|
||
min: 0,
|
||
max: Math.PI * 2,
|
||
step: Math.PI / 20,
|
||
},
|
||
x(u, v) {
|
||
// 如果在起始弧度之前，保持扇形起点的半径
|
||
if (u < startRadian) {
|
||
return offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate;
|
||
}
|
||
// 如果在结束弧度之后，保持扇形终点的半径
|
||
if (u > endRadian) {
|
||
return offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate;
|
||
}
|
||
// 扇形中间部分正常绘制
|
||
return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
|
||
},
|
||
y(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(u, v) {
|
||
// 在 u < -π/2 时，防止出现不必要的翻转，直接使用基本正弦
|
||
if (u < -Math.PI * 0.5) {
|
||
return Math.sin(u) + offsetZ * h * 0.1;
|
||
}
|
||
// 在 u > 2.5π 时，处理扇形尾部厚度
|
||
if (u > Math.PI * 2.5) {
|
||
return Math.sin(u) * h * 0.1 + offsetZ * h * 0.1;
|
||
}
|
||
// 正常情况下，z 根据 v 参数控制上下表面的高度差
|
||
// 当前图形的高度是Z根据h（每个value的值决定的）
|
||
return Math.sin(v) > 0 ? 1 * h * 0.1 + offsetZ * h * 0.1 : -1 + offsetZ * h * 0.1;
|
||
},
|
||
};
|
||
}
|
||
|
||
/**
|
||
* 获取 3D 饼图的配置项
|
||
* @param {Array} pieData 饼图数据
|
||
* @param {Number} internalDiameterRatio 饼图内径/外径的占比
|
||
* @return {Object} 配置项
|
||
*/
|
||
function getPie3D(pieData, internalDiameterRatio) {
|
||
const series = [];
|
||
let sumValue = 0;
|
||
let startValue = 0;
|
||
let endValue = 0;
|
||
const legendData = [];
|
||
|
||
const k = typeof internalDiameterRatio !== 'undefined' ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) : 1 / 3;
|
||
|
||
// 构建每个扇形的 series 数据
|
||
for (let i = 0; i < pieData.length; i += 1) {
|
||
sumValue += pieData[i].value;
|
||
|
||
const seriesItem = {
|
||
name: typeof pieData[i].name === 'undefined' ? `series${i}` : pieData[i].name,
|
||
type: 'surface',
|
||
parametric: true,
|
||
wireframe: { show: false },
|
||
pieData: pieData[i],
|
||
pieStatus: {
|
||
selected: true,
|
||
hovered: false,
|
||
k,
|
||
},
|
||
label: {
|
||
show: true,
|
||
formatter: () => `${pieData[i].value}`, // 直接显示 value
|
||
position: 'outside', // 标签位置
|
||
distance: 10, // 距扇形边缘的距离
|
||
color: '#fff', // 根据背景色调整
|
||
fontSize: 14,
|
||
},
|
||
};
|
||
if (typeof pieData[i].itemStyle !== 'undefined') {
|
||
const { itemStyle } = pieData[i];
|
||
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。
|
||
// console.log(series);
|
||
for (let i = 0; i < series.length; i += 1) {
|
||
endValue = startValue + series[i].pieData.value;
|
||
|
||
const z = series[i]?.pieData?.floatZ ?? 0;
|
||
series[i].pieData.startRatio = startValue / sumValue;
|
||
series[i].pieData.endRatio = endValue / sumValue;
|
||
series[i].parametricEquation = getParametricEquation(
|
||
series[i].pieData.startRatio,
|
||
series[i].pieData.endRatio,
|
||
series[i].pieStatus.selected,
|
||
series[i].pieStatus.hovered,
|
||
k,
|
||
props.option.autoItemHeight > 0 ? props.option.autoItemHeight * series[i].pieData.value : props.option.itemHeight,
|
||
z
|
||
);
|
||
|
||
startValue = endValue;
|
||
|
||
legendData.push(series[i].name);
|
||
}
|
||
// 基础配置：坐标轴、视角、图例、提示框等
|
||
// 准备待返回的配置项，把准备好的 legendData、series 传入。
|
||
const option = {
|
||
legend: {
|
||
type: 'scroll',
|
||
show: true,
|
||
right: '5%',
|
||
top: '25%',
|
||
orient: 'vertical',
|
||
icon: 'circle',
|
||
itemHeight: 12,
|
||
itemWidth: 12,
|
||
itemGap: 10,
|
||
textStyle: {
|
||
color: '#fff',
|
||
fontSize: 14,
|
||
fontWeight: '400',
|
||
},
|
||
formatter: (name) => {
|
||
if (props.chartData.length) {
|
||
const item = props.chartData.filter((item) => item.name === name)[0];
|
||
return ` ${name} ${item.value}${props.option.legendSuffix ?? ''}`;
|
||
}
|
||
},
|
||
},
|
||
// animation: false,
|
||
tooltip: {
|
||
formatter: (params) => {
|
||
if (params.seriesName !== 'mouseoutSeries') {
|
||
return `${
|
||
params.seriesName
|
||
}<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${
|
||
params.color
|
||
};"></span>${option.series[params.seriesIndex].pieData.value}`;
|
||
}
|
||
return '';
|
||
},
|
||
},
|
||
xAxis3D: {
|
||
min: -1,
|
||
max: 1,
|
||
},
|
||
yAxis3D: {
|
||
min: -1,
|
||
max: 1,
|
||
},
|
||
zAxis3D: {
|
||
min: -1,
|
||
max: 1,
|
||
},
|
||
grid3D: {
|
||
show: true,
|
||
boxHeight: 5,
|
||
top: '-20%',
|
||
viewControl: {
|
||
// 3d效果可以放大、旋转等，请自己去查看官方配置
|
||
alpha: 35,
|
||
// beta: 30,
|
||
rotateSensitivity: 1,
|
||
zoomSensitivity: 0,
|
||
panSensitivity: 0,
|
||
autoRotate: true,
|
||
distance: 150,
|
||
},
|
||
// 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: false,
|
||
bloom: {
|
||
enable: true,
|
||
bloomIntensity: 0.1,
|
||
},
|
||
SSAO: {
|
||
enable: true,
|
||
quality: 'medium',
|
||
radius: 2,
|
||
},
|
||
// temporalSuperSampling: {
|
||
// enable: true,
|
||
// },
|
||
},
|
||
},
|
||
series,
|
||
};
|
||
return option;
|
||
}
|
||
|
||
// 监听 mouseover，近似实现高亮（放大）效果
|
||
function handleMouseover(params) {
|
||
// console.log('mouseover');
|
||
const idx = params.seriesIndex;
|
||
const series = chartOption.value.series;
|
||
|
||
// 如果当前扇形已经高亮，不做任何操作
|
||
if (hoveredIndex === idx) return;
|
||
|
||
// 1. 取消上一个高亮
|
||
if (hoveredIndex !== null && hoveredIndex >= 0 && series[hoveredIndex]) {
|
||
updateSeriesHover(hoveredIndex, false);
|
||
}
|
||
|
||
// 2. 设置当前扇形高亮（排除辅助环）
|
||
if (params.seriesName !== 'mouseoutSeries' && series[idx]) {
|
||
updateSeriesHover(idx, true);
|
||
hoveredIndex = idx;
|
||
} else {
|
||
hoveredIndex = null;
|
||
}
|
||
|
||
// 3. 重新渲染
|
||
setOptions(chartOption.value);
|
||
}
|
||
|
||
function handleGlobalout() {
|
||
const idx = hoveredIndex;
|
||
if (idx !== null && idx >= 0 && chartOption.value.series[idx]) {
|
||
updateSeriesHover(idx, false);
|
||
hoveredIndex = null;
|
||
setOptions(chartOption.value);
|
||
}
|
||
}
|
||
|
||
// 抽取高亮／取消高亮的公共逻辑
|
||
function updateSeriesHover(index, toHover) {
|
||
const item = chartOption.value.series[index];
|
||
// 安全取 pieStatus，fallback 到空对象
|
||
const status = item.pieStatus || {};
|
||
const isSelected = !!status.selected;
|
||
const start = item.pieData?.startRatio ?? 0;
|
||
const end = item.pieData?.endRatio ?? 1;
|
||
const k = typeof status.k === 'number' ? status.k : 1 / 3;
|
||
// 计算 newHeight：如果 hover，则加 5，否则按原 height
|
||
const baseHeight = props.option.autoItemHeight > 0 ? props.option.autoItemHeight : props.option.itemHeight;
|
||
const newHeight = toHover ? baseHeight + 5 : baseHeight;
|
||
// 更新 parametricEquation
|
||
item.parametricEquation = getParametricEquation(start, end, isSelected, toHover, k, newHeight);
|
||
// 更新状态
|
||
item.pieStatus = {
|
||
...status,
|
||
hovered: toHover,
|
||
};
|
||
}
|
||
|
||
// 初始化图表
|
||
function initChart() {
|
||
// 生成基础的3D饼图配置(也就是默认的配置)
|
||
const baseOption = getPie3D(props.chartData, props.option.k);
|
||
// 合并用户配置，确保不修改原始对象
|
||
// const finalOption = Object.assign({}, baseOption, cloneDeep(props.option || {}));
|
||
const finalOption = merge({}, baseOption, cloneDeep(props.option || {}));
|
||
chartOption.value = finalOption;
|
||
// 设置图表配置
|
||
setOptions(chartOption.value);
|
||
// 等待 DOM + ECharts 初始化完成
|
||
nextTick(() => {
|
||
const chart = getInstance();
|
||
if (!chart) {
|
||
console.warn('ECharts 实例未初始化，事件绑定失败');
|
||
return;
|
||
}
|
||
|
||
// 避免重复绑定事件
|
||
// chart.off('click');
|
||
chart.off('mouseover');
|
||
chart.off('globalout');
|
||
|
||
// chart.on('click', handleClick);
|
||
chart.on('mouseover', handleMouseover);
|
||
chart.on('globalout', handleGlobalout);
|
||
});
|
||
}
|
||
function handleClick(params) {
|
||
// 如果点击的是透明辅助环，则忽略
|
||
if (params.seriesName === 'mouseoutSeries') return;
|
||
|
||
const optionVal = chartOption.value;
|
||
const series = optionVal.series;
|
||
const idx = params.seriesIndex;
|
||
|
||
// 新的选中状态（取反）
|
||
const isSelected = !series[idx].pieStatus.selected;
|
||
const isHovered = series[idx].pieStatus.hovered;
|
||
const k = series[idx].pieStatus.k;
|
||
const startRatio = series[idx].pieData.startRatio;
|
||
const endRatio = series[idx].pieData.endRatio;
|
||
const h = series[idx].pieData.value;
|
||
|
||
// 如果之前有其他扇形被选中，取消其选中状态
|
||
if (selectedIndex !== null && selectedIndex !== idx) {
|
||
const prev = series[selectedIndex];
|
||
prev.parametricEquation = getParametricEquation(
|
||
prev.pieData.startRatio,
|
||
prev.pieData.endRatio,
|
||
false,
|
||
false,
|
||
prev.pieStatus.k,
|
||
prev.pieData.value
|
||
);
|
||
prev.pieStatus.selected = false;
|
||
selectedIndex = null;
|
||
}
|
||
|
||
// 设置当前扇形的选中/取消选中状态
|
||
series[idx].parametricEquation = getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h);
|
||
series[idx].pieStatus.selected = isSelected;
|
||
|
||
selectedIndex = isSelected ? idx : null;
|
||
setOptions(optionVal);
|
||
emit('click', params);
|
||
}
|
||
|
||
// 组件挂载后绑定事件
|
||
onMounted(() => {
|
||
initChart();
|
||
});
|
||
|
||
// 监听数据或配置变更，重新初始化图表
|
||
watch(
|
||
[() => props.chartData, () => props.option],
|
||
() => {
|
||
if (props.chartData && props.chartData.length) {
|
||
initChart();
|
||
}
|
||
},
|
||
{ immediate: true, deep: true }
|
||
);
|
||
</script>
|
||
|
||
<style scoped>
|
||
/* 可根据需要自定义图表容器样式 */
|
||
</style>
|