286 lines
8.0 KiB
JavaScript
286 lines
8.0 KiB
JavaScript
/**
|
||
* 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;
|
||
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 += Number(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} ${bfs}`;
|
||
},
|
||
},
|
||
labelLine: {
|
||
show: true,
|
||
lineStyle: {
|
||
color: "#fff",
|
||
},
|
||
},
|
||
label: {
|
||
show: true,
|
||
position: "outside",
|
||
formatter: "{b} \n{c} {d}%",
|
||
},
|
||
// tooltip: {
|
||
// backgroundColor: "#033b77",
|
||
// borderColor: "#21f2c4",
|
||
// textStyle: {
|
||
// color: "#fff",
|
||
// fontSize: 13,
|
||
// },
|
||
// formatter: (params) => {
|
||
// if (
|
||
// params.seriesName !== "mouseoutSeries" &&
|
||
// params.seriesName !== "信用评价"
|
||
// ) {
|
||
// // console.log(option.series,params.seriesName,'option.series[params.seriesIndex].pieData');
|
||
// const bfb = (
|
||
// (option.series[params.seriesIndex].pieData.endRatio -
|
||
// option.series[params.seriesIndex].pieData.startRatio) *
|
||
// 100
|
||
// ).toFixed(2);
|
||
// return (
|
||
// `${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, // 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 };
|