You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

280 lines
7.5 KiB
JavaScript

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

/**
* 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) => {
if(pieData.length <0){
return
}
console.log(pieData)
const series = []
let sumValue = 0
let startValue = 0
let endValue = 0
let legendData = []
let legendBfb = []
const k = 1 - internalDiameterRatio
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${i}`
: pieData[i].name,
type: 'surface',
parametric: true,
wireframe: {
show: false
},
pieData: pieData[i],
pieStatus: {
selected: false,
hovered: false,
k: k
},
center: ['10%', '50%']
}
if (typeof pieData[i].itemStyle !== 'undefined') {
const itemStyle = {}
itemStyle.color =
typeof pieData[i].itemStyle.color !== 'undefined'
? pieData[i].itemStyle.color
: opacity
itemStyle.opacity =
typeof pieData[i].itemStyle.opacity !== 'undefined'
? pieData[i].itemStyle.opacity
: opacity
seriesItem.itemStyle = itemStyle
}
series.push(seriesItem)
}
// 使用上一次遍历时,计算出的数据和 sumValue调用 getParametricEquation 函数,
// 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation也就是实现每一个扇形。
legendData = []
legendBfb = []
for (let i = 0; i < series.length; i++) {
endValue = startValue + series[i].pieData.value
series[i].pieData.startRatio = startValue / sumValue
series[i].pieData.endRatio = endValue / sumValue
series[i].parametricEquation = getParametricEquation(
series[i].pieData.startRatio,
series[i].pieData.endRatio,
false,
false,
k,
series[i].pieData.value
)
startValue = endValue
const bfb = fomatFloat(series[i].pieData.value / sumValue, 4)
legendData.push({
name: series[i].name,
value: bfb
})
legendBfb.push({
name: series[i].name,
value: bfb
})
}
const boxHeight = getHeight3D(series, pieHeight) // 通过pieHeight设定3d饼/环的高度单位是px
// 准备待返回的配置项,把准备好的 legendData、series 传入。
const option = {
legend: {
show: false,
data: legendData,
orient: 'vertical',
left: 10,
top: 10,
itemGap: 10,
textStyle: {
color: '#A1E2FF'
},
icon: 'circle',
formatter: function (param) {
const item = legendBfb.filter(item => item.name === param)[0]
const bfs = fomatFloat(item.value * 100, 2) + '%'
return `${item.name} ${bfs}`
}
},
labelLine: {
show: true,
lineStyle: {
color: '#fff'
}
},
label: {
show: true,
position: 'outside',
formatter: '{b} \n{c} {d}%'
},
tooltip: {
backgroundColor: '#033b77',
borderColor: '#21f2c4',
textStyle: {
color: '#fff',
fontSize: 13
},
formatter: params => {
if (
params.seriesName !== 'mouseoutSeries' &&
params.seriesName !== 'pie2d'
) {
const bfb = (
(option.series[params.seriesIndex].pieData.endRatio -
option.series[params.seriesIndex].pieData.startRatio) *
100
).toFixed(2)
return (
`${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,
// boxWidth:180, // 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, endRatio, isSelected, isHovered, k, h) => {
// 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 }