数据可视化大屏 项目开发中，要显示各种各种的饼状图效果，今天要实现的是环形饼状图，中间显示数字以及文字描述，并有颜色渐变背景效果。
效果截图
演示实例
实现代码
<template>
<div class="echartsBodys">
<echarts1 title="人员资质" :total="total" :list="list" ref="echarts"></echarts1>
</div>
</template>
<script>
import WOW from "wow.js";
import echarts1 from "./components/echarts.vue";
export default {
name: "title",
data() {
return {
list: [
{
name: '工食品签证官',
value: 80,
color1: 'rgba(252, 96, 93, 1)',
color2: 'rgba(253, 173, 68, 1)',
checked: true
},
{
name: '植物源性食品现场查验资质',
value: 70,
color1: 'rgba(253, 168, 62, 1)',
color2: 'rgba(254, 217, 82, 1)',
checked: true
},
{
name: '不合格原因3',
value: 70,
color1: 'rgba(47, 156, 252, 1)',
color2: 'rgba(254, 221, 66, 1)',
checked: true
}]
}
},
computed: {
total: function () {
var total = 0
this.list.forEach((type) => {
total += type.value
});
return total
}
},
components: {echarts1},
props: {
title: {
type: String,
default() {
return '';
}
},
icon: {
type: String,
default() {
return '';
}
},
},
watch: {},
mounted() {
var that = this;
var wow = new WOW({
boxClass: "wow",
animateClass: "animated",
offset: 0,
mobile: true,
live: true,
callback: function (box) {
},
scrollContainer: null,
resetAnimation: true,
});
wow.init();
},
methods: {
getChecked(index) {
this.list[index].checked = !this.list[index].checked
this.$refs.echarts.drawEcharts()
}
},
}
</script>
<style lang="scss" scoped>
.list {
margin-left: 0px;
position: relative;
width: 50%;
height: calc(100% - 10px);
//background: url("./assets/jiaobiaobg.png") no-repeat;
//background-size: 100% 100%;
display: flex;
justify-content: space-between;
align-items: center;
flex-wrap: nowrap;
flex-direction: column;
align-content: flex-start;
.listItem {
font-size: 14px;
display: flex;
height: 30%;
width: calc(100% - 20px);
margin: 0 auto;
justify-content: space-between;
align-items: center;
flex-wrap: nowrap;
flex-direction: row;
align-content: flex-start;
.listIteml {
display: flex;
justify-content: flex-start;
align-items: center;
flex-wrap: nowrap;
flex-direction: row;
align-content: flex-start;
font-size: 14px;
font-family: MicrosoftYaHei;
font-weight: 400;
color: #FFFFFF;
}
span {
font-size: 14px;
font-family: PingFang SC-Regular, PingFang SC;
font-weight: 400;
color: #E0F9FF;
line-height: 20px;
}
.dot {
width: 8px;
height: 8px;
margin-right: 10px;
flex-shrink: 0;
}
.dot.disabled {
background: rgba(#999, 0.8) !important;
}
span.disabled {
color: rgba(#999, 0.8) !important;
}
.num {
font-size: 22px;
font-family: DIN;
font-weight: normal;
color: #FFFFFF;
line-height: 20px;
background: linear-gradient(0deg, rgba(#999, 0.8) 0.1220703125%, rgba(#999, 0.8) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
}
}
.echartsBodys {
width: 100%;
position: relative;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
flex-wrap: nowrap;
flex-direction: row;
align-content: flex-start;
}
</style>
组件代码
<template>
<div class="echartsBody">
<div class="echartsBody1" ref="echarts1"></div>
<div class="echartsBody2">
<div class="echartsTitle">{{ total }}</div>
<div class="echartsDesc">{{ title }}</div>
</div>
</div>
</template>
<script>
import * as echarts from "echarts"
export default {
name: 'echarts1',
components: {},
data() {
return {}
},
props: {
list: {
type: Array,
default() {
return [];
}
},
shadowColor: {
type: String,
default() {
return 'rgba(254, 175, 87, 0.5)';
}
},
title: {
type: String,
default() {
return '人员资质';
}
},
total: {
type: String,
default() {
return 0;
}
},
},
mounted() {
this.drawEcharts()
},
computed: {
colorList: function () {
var that = this;
var colorList = []
that.list.forEach((type) => {
var color = new echarts.graphic.LinearGradient(0, 0, 1, 1, [{
offset: 0,
color: type.color1
}, {
offset: 1,
color: type.color2
}])
colorList.push(color)
});
return colorList
}
},
methods: {
drawEcharts() {
var that = this
window.addEventListener('resize', this.drawEcharts)
let myChart = echarts.init(this.$refs.echarts1)
var colors = this.colorList
var data = []
var placeHolderStyle = {
normal: {
label: {
show: false
},
labelLine: {
show: false
},
color: 'rgba(0, 0, 0, 0)',
borderColor: 'rgba(0, 0, 0, 0)',
borderWidth: 0
}
};
that.list.forEach((type) => {
if (type.checked) {
var datas = {
...type,
itemStyle: {
normal: {
borderWidth: 6,
shadowBlur: 9,
borderColor: new echarts.graphic.LinearGradient(0, 0, 1, 1, [{
offset: 0,
color: type.color1
}, {
offset: 1,
color: type.color2
}]),
shadowColor: that.shadowColor
}
}
}
data.push(datas)
data.push({
value: 8,
name: '',
itemStyle: placeHolderStyle
})
}
});
var option = {
color: colors,
tooltip: {
trigger: 'item',
// formatter: '{a} {b} : {c} ({d}%)'
},
series: [
{
name: '资质管理',
type: 'pie',
roundCap: true,
radius: ['79%', '80%'],
center: ['50%', '50%'],
borderCap: 'round',
label: {
show: false,
normal: {
show: false,
fontSize: 14,
color: '#92B2D7'
}
},
labelLine: {
show: false,
length: 1,
length2: 10
},
data: data
},
{
type: 'pie',
name: '饼状背景',
radius: ['0%', '60%'],
center: ['50%', '50%'],
startAngle: 110,
hoverAnimation: false,
itemStyle: {
normal: {
color: new echarts.graphic.LinearGradient(0, 0, 1, 1, [{
offset: 0,
color: 'rgba(1, 26, 94, 1.00)'
}, {
offset: 1,
color: 'rgba(1, 26, 94, 1.00)'
}]),
shadowBlur: 30,
shadowColor: 'rgba(254, 175, 87, 0.3)'
},
},
tooltip: {
show: false,
},
label: {
show: false
},
data: [50]
},
]
}
myChart.clear()
myChart.resize()
myChart.setOption(option)
},
}
}
</script>
<style lang="scss" scoped>
.echartsBody {
position: relative;
width: 100%;
height: calc(100% - 0px);
.echartsBody1 {
position: relative;
width: 100%;
height: calc(100% - 0px);
}
.echartsBody2 {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: calc(100% - 0px);
display: flex;
justify-content: center;
align-items: center;
flex-wrap: nowrap;
flex-direction: column;
align-content: flex-start;
pointer-events: none;
.echartsTitle {
font-size: 30px;
font-family: DIN;
font-weight: normal;
color: #FFFFFF;
text-shadow: 0 0 10px rgba(120, 168, 238, 1.00);
}
.echartsDesc {
font-size: 14px;
font-family: MicrosoftYaHei;
font-weight: 400;
color: #9DB9E9;
}
}
}
</style>
