echarts饼图封装
1. 组件
<template>
<div
:id="id"
class="main"
:style="{ width: width, height: height }"
:ref="id"
></div>
</template>
<script>
import * as echarts from "echarts";
export default {
name: "roseChart",
data() {
return {
myEchart: null,
};
},
props: {
width: {
type: String,
default: "100%",
},
height: {
type: String,
default: "100%",
},
// 数据（数组）
typeAnalysisData: {
type: Array,
default: () => [],
},
id: {
type: String,
default: "roseChart",
},
// 是否显示提示（方框）
legendShow: {
type: Boolean,
default: true,
},
// 上面距离
legendTop: {
type: String,
default: "auto",
},
// 左面距离
legendLeft: {
type: String,
default: "auto",
},
// 排列方式
legendOrient: {
type: String,
default: "vertical",
},
// 字体颜色（方框）
legendColor: {
type: String,
default: "#8493c3",
},
// 字体大小（方框）
legendFontSize: {
type: String,
default: "16px",
},
titleFontSize: {
type: Number,
default: 34,
},
titleColor: {
type: String,
default: "#8493c3",
},
// 饼图的半径
radius: {
type: Array,
default: () => [],
},
// 文本标签
labelShow: {
type: Boolean,
default: true,
},
labelPosition: {
type: String,
default: "center",
},
// 文本字体大小
labelFontSize: {
type: Number,
default: 14,
},
// 文本字体行高
lineHeight: {
type: Number,
default: 15,
},
// 文本字体颜色
labelColor: {
type: String,
default: "#8493c3",
},
activeFontSize: {
type: Number,
default: 15,
},
activeColor: {
type: String,
default: "#8493c3",
},
// 中心
center: {
type: Array,
default: () => [],
},
// 标题
titleShow: {
type: Boolean,
default: true,
},
// 主标题
text: {
type: String,
default: "主标题",
},
// 副标题
subtext: {
type: String,
default: "副标题",
},
// 标题位置（上下）
titleTop: {
type: String,
default: "center",
},
// 标题位置（左右）
titleLeft: {
type: String,
default: "center",
},
},
methods: {
drawChart() {
let timer = null;
timer = setTimeout(() => {
if (
this.myEchart != null &&
this.myEchart != "" &&
this.myEchart != undefined
) {
this.myEchart.dispose(); //销毁
}
if (!this.$refs[this.id]) return;
this.myEchart = echarts.init(this.$refs[this.id]);
let option = {
title: {
show: this.titleShow,
// x: "44%", //X坐标
// y: "35%", //Y坐标
top: this.titleTop,
left: this.titleLeft,
text: this.text, //主标题
subtext: this.subtext, //副标题
textStyle: {
//标题样式
fontSize: 20,
fontWeight: "bolder",
color: "rgb(113, 116, 123)",
// formatter: "",
// marginTop: this.marginTop,
// marginLeft: this.marginLeft,
// transfrom: "translate(-50%,-50%)",
},
subtextStyle: {
//副标题样式
fontSize: 14,
fontWeight: "bolder",
color: "rgb(113, 116, 123)",
// transform: "translate(-50%,-50%)",
// marginTop: this.marginTop,
// marginLeft: this.marginLeft,
},
},
legend: {
show: this.legendShow,
orient: this.legendOrient,
top: this.legendTop,
left: this.legendLeft,
textStyle: {
color: this.legendColor,
fontSize: this.legendFontSize,
},
},
series: [
{
name: "Nightingale Chart",
type: "pie",
radius: this.radius,
center: this.center,
// roseType: "area",
itemStyle: {
normal: {
color: function (colors) {
var colorList = [
"rgb(250, 133, 133)",
"rgb(108, 200, 121)",
];
return colorList[colors.dataIndex];
},
borderRadius: 0,
},
},
label: {
show: this.labelShow,
alignTo: "edge",
formatter: "{name|{b}}\n{time|{d} %}",
minMargin: 5,
edgeDistance: 10,
lineHeight: this.lineHeight,
rich: {
time: {
fontSize: this.labelFontSize,
color: this.labelColor,
},
name: {
fontSize: this.labelFontSize,
color: this.labelColor,
},
},
},
labelLine: {
length: 15,
length2: 0,
maxSurfaceAngle: 80,
},
// label: {
// normal: {
// show: true,
// textStyle: {
// color: this.labelColor,
// fontSize: this.labelFontSize,
// },
// formatter: "{per|{d}%}",
// rich: {
// }
// },
// },
data: this.typeAnalysisData,
},
],
};
this.myEchart.setOption(option);
}, 500);
},
},
mounted() {
this.drawChart();
},
watch: {
typeAnalysisData: {
handler(newName, oldName) {
this.$nextTick(() => {
this.drawChart();
window.addEventListener("resize", this.drawChart);
});
},
deep: true,
},
},
destroyed() {
window.removeEventListener("resize", this.drawChart);
},
};
</script>
<style lang="scss" scoped>
</style>
2.内容
（1）标签
<rose-chart
:typeAnalysisData="dataList"
:color="color"
:labelShow="false"
:radius="radius"
:center="center"
legendLeft="right"
legendTop="middle"
></rose-chart>
（2）数据
// 饼状图
dataList: [
{ value: 1048, name: "异常设备" },
{ value: 735, name: "正常设备" },
],
color: ["#3c4a73", "#00a0e9", "#090", "#f00", "#f00"],
radius: ["50%", "60%"],
center: ["50%", "50%"],