vue echarts封装使用
echarts 尺寸自动调节 resize.js
柱状图
components/dashboard/lineChart.vue
<template>
<div :class="className" :style="{height:height,width:width}" />
</template>
<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'
export default {
mixins: [resize],
props: {
className: {
type: String,
default: 'chart'
},
width: {
type: String,
default: '100%'
},
height: {
type: String,
default: '350px'
},
autoResize: {
type: Boolean,
default: true
},
chartData: {
type: Object,
required: true
}
},
data() {
return {
chart: null
}
},
watch: {
chartData: {
deep: true,
handler(val) {
this.setOptions(val)
}
}
},
mounted() {
this.$nextTick(() => {
this.initChart()
})
},
beforeDestroy() {
if (!this.chart) {
return
}
this.chart.dispose()
this.chart = null
},
methods: {
initChart() {
this.chart = echarts.init(this.$el, 'macarons')
this.setOptions(this.chartData)
},
setOptions({ expectedData, actualData } = {}) {
this.chart.setOption({
xAxis: {
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
boundaryGap: false,
axisTick: {
show: false
}
},
grid: {
left: 10,
right: 10,
bottom: 20,
top: 30,
containLabel: true
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross'
},
padding: [5, 10]
},
yAxis: {
axisTick: {
show: false
}
},
legend: {
data: ['expected', 'actual']
},
series: [{
name: 'expected', itemStyle: {
normal: {
color: '#FF005A',
lineStyle: {
color: '#FF005A',
width: 2
}
}
},
smooth: true,
type: 'line',
data: expectedData,
animationDuration: 2800,
animationEasing: 'cubicInOut'
},
{
name: 'actual',
smooth: true,
type: 'line',
itemStyle: {
normal: {
color: '#3888fa',
lineStyle: {
color: '#3888fa',
width: 2
},
areaStyle: {
color: '#f3f8ff'
}
}
},
data: actualData,
animationDuration: 2800,
animationEasing: 'quadraticOut'
}]
})
}
}
}
</script>
饼图
components/dashboard/pieChart.vue
<template>
<div :class="className" :style="{height:height,width:width}" />
</template>
<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'
export default {
mixins: [resize],
props: {
className: {
type: String,
default: 'chart'
},
width: {
type: String,
default: '100%'
},
height: {
type: String,
default: '300px'
}
},
data() {
return {
chart: null
}
},
mounted() {
this.$nextTick(() => {
this.initChart()
})
},
beforeDestroy() {
if (!this.chart) {
return
}
this.chart.dispose()
this.chart = null
},
methods: {
initChart() {
this.chart = echarts.init(this.$el, 'macarons')
this.chart.setOption({
tooltip: {
trigger: 'item',
formatter: '{a} <br/>{b} : {c} ({d}%)'
},
legend: {
left: 'center',
bottom: '10',
data: ['Industries', 'Technology', 'Forex', 'Gold', 'Forecasts']
},
series: [
{
name: 'WEEKLY WRITE ARTICLES',
type: 'pie',
roseType: 'radius',
radius: [15, 95],
center: ['50%', '38%'],
data: [
{ value: 320, name: 'Industries' },
{ value: 240, name: 'Technology' },
{ value: 149, name: 'Forex' },
{ value: 100, name: 'Gold' },
{ value: 59, name: 'Forecasts' }
],
animationEasing: 'cubicInOut',
animationDuration: 2600
}
]
})
}
}
}
</script>
雷达图
components/dashboard/RaddarChart.vue
<template>
<div :class="className" :style="{height:height,width:width}" />
</template>
<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'
const animationDuration = 3000
export default {
mixins: [resize],
props: {
className: {
type: String,
default: 'chart'
},
width: {
type: String,
default: '100%'
},
height: {
type: String,
default: '300px'
}
},
data() {
return {
chart: null
}
},
mounted() {
this.$nextTick(() => {
this.initChart()
})
},
beforeDestroy() {
if (!this.chart) {
return
}
this.chart.dispose()
this.chart = null
},
methods: {
initChart() {
this.chart = echarts.init(this.$el, 'macarons')
this.chart.setOption({
tooltip: {
trigger: 'axis',
axisPointer: { // 坐标轴指示器,坐标轴触发有效
type: 'shadow' // 默认为直线,可选为:'line' | 'shadow'
}
},
radar: {
radius: '66%',
center: ['50%', '42%'],
splitNumber: 8,
splitArea: {
areaStyle: {
color: 'rgba(127,95,132,.3)',
opacity: 1,
shadowBlur: 45,
shadowColor: 'rgba(0,0,0,.5)',
shadowOffsetX: 0,
shadowOffsetY: 15
}
},
indicator: [
{ name: 'Sales', max: 10000 },
{ name: 'Administration', max: 20000 },
{ name: 'Information Techology', max: 20000 },
{ name: 'Customer Support', max: 20000 },
{ name: 'Development', max: 20000 },
{ name: 'Marketing', max: 20000 }
]
},
legend: {
left: 'center',
bottom: '10',
data: ['Allocated Budget', 'Expected Spending', 'Actual Spending']
},
series: [{
type: 'radar',
symbolSize: 0,
areaStyle: {
normal: {
shadowBlur: 13,
shadowColor: 'rgba(0,0,0,.2)',
shadowOffsetX: 0,
shadowOffsetY: 10,
opacity: 1
}
},
data: [
{
value: [5000, 7000, 12000, 11000, 15000, 14000],
name: 'Allocated Budget'
},
{
value: [4000, 9000, 15000, 15000, 13000, 11000],
name: 'Expected Spending'
},
{
value: [5500, 11000, 12000, 15000, 12000, 12000],
name: 'Actual Spending'
}
],
animationDuration: animationDuration
}]
})
}
}
}
</script>
在 components文件夹dashboard里新建mixins文件夹——>mixins文件夹里新建resize.js文件,代码如下:
使用时在echats图页引入即可
import { debounce } from '@/utils'
export default {
data() {
return {
$_sidebarElm: null,
$_resizeHandler: null
}
},
mounted() {
this.initListener()
},
activated() {
if (!this.$_resizeHandler) {
// avoid duplication init
this.initListener()
}
// when keep-alive chart activated, auto resize
this.resize()
},
beforeDestroy() {
this.destroyListener()
},
deactivated() {
this.destroyListener()
},
methods: {
// use $_ for mixins properties
// https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
$_sidebarResizeHandler(e) {
if (e.propertyName === 'width') {
this.$_resizeHandler()
}
},
initListener() {
this.$_resizeHandler = debounce(() => {
this.resize()
}, 100)
window.addEventListener('resize', this.$_resizeHandler)
this.$_sidebarElm = document.getElementsByClassName('sidebar-container')[0]
this.$_sidebarElm && this.$_sidebarElm.addEventListener('transitionend', this.$_sidebarResizeHandler)
},
destroyListener() {
window.removeEventListener('resize', this.$_resizeHandler)
this.$_resizeHandler = null
this.$_sidebarElm && this.$_sidebarElm.removeEventListener('transitionend', this.$_sidebarResizeHandler)
},
resize() {
const { chart } = this
chart && chart.resize()
}
}
}
与components同级新建utils文件夹——>utils文件夹里新建index.js文件,代码如下:
/**
* @param {Function} func
* @param {number} wait
* @param {boolean} immediate
* @return {*}
*/
export function debounce(func, wait, immediate) {
let timeout, args, context, timestamp, result
const later = function() {
// 据上一次触发时间间隔
const last = +new Date() - timestamp
// 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
if (last < wait && last > 0) {
timeout = setTimeout(later, wait - last)
} else {
timeout = null
// 如果设定为immediate===true,因为开始边界已经调用过了此处无需调用
if (!immediate) {
result = func.apply(context, args)
if (!timeout) context = args = null
}
}
}
return function(...args) {
context = this
timestamp = +new Date()
const callNow = immediate && !timeout
// 如果延时不存在,重新设定延时
if (!timeout) timeout = setTimeout(later, wait)
if (callNow) {
result = func.apply(context, args)
context = args = null
}
return result
}
}