在写大屏项目的时候 需要引入特别多的echarts图表
所以可以把echarts封装一下 方便使用
//引入echart
import echarts from 'echarts'
import 'echarts-liquidfill'
Vue.prototype.$echarts = echarts
复制代码然后创建一个utils/resizeMixin.js文件去做大屏的自适应图表 并且创建一个utils/index文件做一个防抖的函数 去控制屏幕大小变化的频率
// 混入代码 resize-mixins.js
import { debounce } from '@/utils';
const resizeChartMethod = '$__resizeChartMethod';
export default {
data() {
// 在组件内部将图表 init 的引用映射到 chart 属性上
return {
chart: null,
};
},
created() {
window.addEventListener(‘resize’, this[resizeChartMethod], false);
},
activated() {
// 防止 keep-alive 之后图表变形
if (this.chart) {
this.chart.resize()
}
},
beforeDestroy() {
window.removeEventListener(‘reisze’, this[resizeChartMethod]);
},
methods: {
// 防抖函数来控制 resize 的频率
[resizeChartMethod]: debounce(function() {
if (this.chart) {
this.chart.resize();
}
}, 300),
},
};
复制代码
export function debounce(fn, delay) {
var timer;
return function () {
var context = this;
var args = arguments;
clearTimeout(timer);
timer = setTimeout(function () {
fn.apply(context, args);
}, delay);
};
}
复制代码然后就是封装echarts了 创建一个echarts的文件夹 里面一个index.vue是组件 还有一个theme.json是主题文件
<div :id="id" :class="className" :style="{ height: height, width: width }" />
<script>
import tdTheme from ‘./theme.json’ // 引入默认主题
import resizeMixins from “@/utils/resizeMixins”;
import ‘…/map/fujian.js’
export default {
name: ‘echart’,
mixins: [resizeMixins],
props: {
className: {
type: String,
default: ‘chart’
},
id: {
type: String,
default: ‘chart’
},
width: {
type: String,
default: ‘100%’
},
height: {
type: String,
default: ‘2.5rem’
},
options: {
type: Object,
default: ()=>({})
}
},
data () {
return {
chart: null
}
},
watch: {
options: {
handler (options) {
// 设置true清空echart缓存
this.chart.setOption(options, true)
},
deep: true
}
},
mounted () {
this.KaTeX parse error: Expected 'EOF', got '}' at position 281: …rt(); }̲, echarts.init(this.
e
l
<
/
s
p
a
n
>
,
<
s
p
a
n
c
l
a
s
s
=
"
h
l
j
s
−
s
t
r
i
n
g
"
>
′
t
d
T
h
e
m
e
′
<
/
s
p
a
n
>
)
<
s
p
a
n
c
l
a
s
s
=
"
h
l
j
s
−
v
a
r
i
a
b
l
e
l
a
n
g
u
a
g
e
"
>
t
h
i
s
<
/
s
p
a
n
>
.
el, 'tdTheme') this.
el</span>,<spanclass="hljs−string">′tdTheme′</span>)<spanclass="hljs−variablelanguage">this</span>.emit(‘myCharts’, this.chart) // 把实例丢出来
this.chart.setOption(this.options, true)
}
}
}
script>
<style>
style>
复制代码
{
"color": ["#2d8cf0", "#19be6b", "#ff9900", "#E46CBB", "#9A66E4", "#ed3f14"],
"backgroundColor": "rgba(0,0,0,0)",
"textStyle": {},
"title": {
"textStyle": {
"color": "#516b91"
},
"subtextStyle": {
"color": "#93b7e3"
}
},
"line": {
"itemStyle": {
"normal": {
"borderWidth": "2"
}
},
"lineStyle": {
"normal": {
"width": "2"
}
},
"symbolSize": "6",
"symbol": "emptyCircle",
"smooth": true
},
"radar": {
"itemStyle": {
"normal": {
"borderWidth": "2"
}
},
"lineStyle": {
"normal": {
"width": "2"
}
},
"symbolSize": "6",
"symbol": "emptyCircle",
"smooth": true
},
"bar": {
"itemStyle": {
"normal": {
"barBorderWidth": 0,
"barBorderColor": "#ccc"
},
"emphasis": {
"barBorderWidth": 0,
"barBorderColor": "#ccc"
}
}
},
"pie": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"scatter": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"boxplot": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"parallel": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"sankey": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"funnel": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"gauge": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
},
"emphasis": {
"borderWidth": 0,
"borderColor": "#ccc"
}
}
},
"candlestick": {
"itemStyle": {
"normal": {
"color": "#edafda",
"color0": "transparent",
"borderColor": "#d680bc",
"borderColor0": "#8fd3e8",
"borderWidth": "2"
}
}
},
"graph": {
"itemStyle": {
"normal": {
"borderWidth": 0,
"borderColor": "#ccc"
}
},
"lineStyle": {
"normal": {
"width": 1,
"color": "#aaa"
}
},
"symbolSize": "6",
"symbol": "emptyCircle",
"smooth": true,
"color": ["#2d8cf0", "#19be6b", "#f5ae4a", "#9189d5", "#56cae2", "#cbb0e3"],
"label": {
"normal": {
"textStyle": {
"color": "#eee"
}
}
}
},
"map": {
"itemStyle": {
"normal": {
"areaColor": "#f3f3f3",
"borderColor": "#516b91",
"borderWidth": 0.5
},
"emphasis": {
"areaColor": "rgba(165,231,240,1)",
"borderColor": "#516b91",
"borderWidth": 1
}
},
"label": {
"normal": {
"textStyle": {
"color": "#000"
}
},
"emphasis": {
"textStyle": {
"color": "rgb(81,107,145)"
}
}
}
},
"geo": {
"itemStyle": {
"normal": {
"areaColor": "#f3f3f3",
"borderColor": "#516b91",
"borderWidth": 0.5
},
"emphasis": {
"areaColor": "rgba(165,231,240,1)",
"borderColor": "#516b91",
"borderWidth": 1
}
},
"label": {
"normal": {
"textStyle": {
"color": "#000"
}
},
"emphasis": {
"textStyle": {
"color": "rgb(81,107,145)"
}
}
}
},
"categoryAxis": {
"axisLine": {
"show": true,
"lineStyle": {
"color": "#cccccc"
}
},
"axisTick": {
"show": false,
"lineStyle": {
"color": "#333"
}
},
"axisLabel": {
"show": true,
"textStyle": {
"color": "#fff"
}
},
"splitLine": {
"show": false,
"lineStyle": {
"color": ["#eeeeee"]
}
},
"splitArea": {
"show": false,
"areaStyle": {
"color": ["rgba(250,250,250,0.05)", "rgba(200,200,200,0.02)"]
}
}
},
"valueAxis": {
"axisLine": {
"show": true,
"lineStyle": {
"color": "#cccccc"
}
},
"axisTick": {
"show": false,
"lineStyle": {
"color": "#333"
}
},
"axisLabel": {
"show": true,
"textStyle": {
"color": "#fff"
}
},
"splitLine": {
"show": false,
"lineStyle": {
"color": ["#eeeeee"]
}
},
"splitArea": {
"show": false,
"areaStyle": {
"color": ["rgba(250,250,250,0.05)", "rgba(200,200,200,0.02)"]
}
}
},
"logAxis": {
"axisLine": {
"show": true,
"lineStyle": {
"color": "#cccccc"
}
},
"axisTick": {
"show": false,
"lineStyle": {
"color": "#333"
}
},
"axisLabel": {
"show": true,
"textStyle": {
"color": "#999999"
}
},
"splitLine": {
"show": true,
"lineStyle": {
"color": ["#eeeeee"]
}
},
"splitArea": {
"show": false,
"areaStyle": {
"color": ["rgba(250,250,250,0.05)", "rgba(200,200,200,0.02)"]
}
}
},
"timeAxis": {
"axisLine": {
"show": true,
"lineStyle": {
"color": "#cccccc"
}
},
"axisTick": {
"show": false,
"lineStyle": {
"color": "#333"
}
},
"axisLabel": {
"show": true,
"textStyle": {
"color": "#999999"
}
},
"splitLine": {
"show": true,
"lineStyle": {
"color": ["#eeeeee"]
}
},
"splitArea": {
"show": false,
"areaStyle": {
"color": ["rgba(250,250,250,0.05)", "rgba(200,200,200,0.02)"]
}
}
},
"toolbox": {
"iconStyle": {
"normal": {
"borderColor": "#999"
},
"emphasis": {
"borderColor": "#666"
}
}
},
"legend": {
"textStyle": {
"color": "#fff"
}
},
"tooltip": {
"axisPointer": {
"lineStyle": {
"color": "#ccc",
"width": 1
},
"crossStyle": {
"color": "#ccc",
"width": 1
}
}
},
"timeline": {
"lineStyle": {
"color": "#8fd3e8",
"width": 1
},
"itemStyle": {
"normal": {
"color": "#8fd3e8",
"borderWidth": 1
},
"emphasis": {
"color": "#8fd3e8"
}
},
"controlStyle": {
"normal": {
"color": "#8fd3e8",
"borderColor": "#8fd3e8",
"borderWidth": 0.5
},
"emphasis": {
"color": "#8fd3e8",
"borderColor": "#8fd3e8",
"borderWidth": 0.5
}
},
"checkpointStyle": {
"color": "#8fd3e8",
"borderColor": "rgba(138,124,168,0.37)"
},
"label": {
"normal": {
"textStyle": {
"color": "#8fd3e8"
}
},
"emphasis": {
"textStyle": {
"color": "#8fd3e8"
}
}
}
},
"visualMap": {
"color": ["#516b91", "#59c4e6", "#a5e7f0"]
},
"dataZoom": [
{
"type": "inside",
"backgroundColor": "rgba(0,0,0,0)",
"dataBackgroundColor": "rgba(255,255,255,0.3)",
"fillerColor": "rgba(167,183,204,0.4)",
"handleColor": "#a7b7cc",
"handleSize": "100%",
"textStyle": {
"color": "#333"
}
}
],
"markPoint": {
"label": {
"normal": {
"textStyle": {
"color": "#eee"
}
},
"emphasis": {
"textStyle": {
"color": "#eee"
}
}
}
}
}
复制代码
使用这个组件的方法
import Echart from '@/echart' //引入echatrs组件
components: { //并且注册组件
Echart,
},
=================== =================== ===================
<Echart :options="图表的配置" id="可选" height='100%' width="100%">Echart>
复制代码