正面看没问题,但是转到背面,蓝色没有把红色挡住,出现穿透的情况,这个怎么解决
createLivestockChart() {
const optionsData = [
{name: '待办', value: 4256, itemStyle: {color: 'rgba(15, 213, 247, 0.935)'}},
{name: '已办', value: 2356, itemStyle: {color: 'rgb(65,70,212)'}},
{name: '未处理', value: 2018, itemStyle: {color: 'rgb(4, 245, 92)'}},
{name: '忽略', value: 1998, itemStyle: {color: 'rgba(245, 64, 4, 0.958)'}}
]
// 关键修改:缩小半径参数,保持高度不变
const radiusSize = 25; // 半径从30减小到20
const heightSize = 50; // 高度保持不变
const series = getPie3D(optionsData, 0, radiusSize, 0, 0, heightSize)
this.livestockOption = {
legend: {
show: true,
tooltip: {show: true},
orient: 'vertical',
data: ['待办', '已办', '未处理', '忽略'],
top: 'center',
itemGap: 10,
itemHeight: 6,
itemWidth: 14,
right: '2%',
textStyle: {
color: '#fff',
fontSize: 8,
},
},
animation: true,
tooltip: {
formatter: (params) => {
if (params.seriesName !== 'mouseoutSeries') {
return `${params.name}<br/>
<span style="display:inline-block;
margin-right:5px;
border-radius:10px;
width:10px;
height:10px;
background-color:${params.color};"></span>
${params.value}人`
}
},
textStyle: {fontSize: 12}
},
title: {
x: 'center',
top: '10',
textStyle: {color: '#fff', fontSize: 12}
},
labelLine: {show: false},
label: {show: false},
xAxis3D: {min: -1, max: 1},
yAxis3D: {min: -1, max: 1},
zAxis3D: {min: -1, max: 1},
grid3D: {
show: false,
boxHeight: 0.01,
bottom: '55%',
viewControl: {
distance: 80, // 进一步减小观察距离
alpha: 35,
beta: 55,
autoRotate: true,
},
},
series: [
...series,
{
// 添加深度排序层(按比例缩小)
type: 'surface',
wireframe: {show: false},
shading: 'color',
silent: true,
itemStyle: {color: 'transparent'},
parametric: true,
parametricEquation: {
u: {min: -Math.PI, max: Math.PI},
v: {min: -Math.PI, max: Math.PI},
x: function (u, v) {
return Math.sin(u) * Math.cos(v) * 0.3; // 缩小到30%
},
y: function (u, v) {
return Math.sin(u) * Math.sin(v) * 0.3; // 缩小到30%
},
z: function (u, v) {
return Math.cos(u) * 0.3; // 缩小到30%
}
}
}
]
}
}export function getPie3D(pieData, internalDiameterRatio, size, startAngle, endAngle, height) {
let series = []
let sumValue = 0
let startValue = 0
let endValue = 0
let legendData = []
let k =
typeof internalDiameterRatio !== 'undefined'
? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
: 1 / 3
// 添加缩放比例计算
const scale = size / 100; // 根据size参数计算缩放比例
// 为每一个饼图数据,生成一个 series-surface 配置
for (let i = 0; i < pieData.length; i++) {
sumValue += pieData[i].value
let seriesItem = {
name:
typeof pieData[i].name === 'undefined'
? `series${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].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。
for (let i = 0; i < series.length; i++) {
endValue = startValue + series[i].pieData.value
// console.log(series[i])
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, // 使用固定的高度值
scale // 添加缩放比例参数
)
startValue = endValue
legendData.push(series[i].name)
}
return series
}
// 修改函数签名,添加scale参数
export function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, height, scale = 1) {
// 计算
let midRatio = (startRatio + endRatio) / 2
let startRadian = startRatio * Math.PI * 2
let endRadian = endRatio * Math.PI * 2
let 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)
let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0
let 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)
let 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) {
let result;
if (u < startRadian) {
result = (
offsetX +
Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
)
} else if (u > endRadian) {
result = (
offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
)
} else {
result = (
offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate
)
}
return result * scale; // 应用缩放比例
},
y: function (u, v) {
let result;
if (u < startRadian) {
result = (
offsetY +
Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
)
} else if (u > endRadian) {
result = (
offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
)
} else {
result = (
offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate
)
}
return result * scale; // 应用缩放比例
},
z: function (u, v) {
// 高度不应用缩放比例
if (u < -Math.PI * 0.5) {
return Math.sin(u)
}
if (u > Math.PI * 2.5) {
return Math.sin(u)
}
return Math.sin(v) > 0 ? 1 * height : -1
},
}
}
可以参考下这个例子:
https://blog.csdn.net/weixin_58735350/article/details/140612716