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| <template>
| <div id="myPieChart" :class="className" :style="{height:height,width:width}" />
| </template>
|
| <script>
| import echarts from 'echarts'
| export default {
| props: {
| datas: {
| type: Array,
| default: []
| },
| className: {
| type: String,
| default: 'chart'
| },
| width: {
| type: String,
| default: '100%'
| },
| height: {
| type: String,
| default: '240px'
| },
| save: {
| type: Boolean,
| default: true
| }
| },
| data() {
| return {
| chart: null
| }
| },
| watch: {
| datas(val, oldVal) {
|
| this.initChart()
| }
| },
| mounted() {
| // this.$nextTick(() => {
| // this.initChart()
| // })
| this.initChart()
| },
| beforeDestroy() {
| if (!this.chart) {
| return
| }
| this.chart.dispose()
| this.chart = null
| },
| methods: {
| initChart() {
| const chartDom = document.getElementById('myPieChart')
| const myChart = echarts.init(chartDom)
| this.chart = myChart
|
| this.chart.setOption({
| title: {
| text: '城市优良天统计柱状图',
| show: false
| },
| tooltip: {
| trigger: 'item',
| backgroundColor: 'rgba(255,255,255,.8)', // 通过设置rgba调节背景颜色与透明度
| color: 'gray',
| borderWidth: '1',
| borderColor: '#d9d9d9',
| formatter: function(val) {
| const name = val.name.split(':')[0]
| const proportion = val.name.split(':')[1]
| return name + '<br/>' + '天数: ' + val.value + '天' + '<br/>' + '占比:' + proportion
| },
| textStyle: {
| color: '#808080'
| }
| },
| toolbox: {
| feature: {
| saveAsImage: { show: this.save }
| }
| },
| color: ['#00e400', '#ffff00', '#ff7e00', '#ff0000', '#99004c', '#7e0023'],
| series: [
| {
| name: '',
| type: 'pie',
| radius: '70%',
| center: ['55%', '50%'],
| data: this.datas,
| label: {
| 'normal': {
| 'show': true,
| 'textStyle': {
| 'fontSize': 12,
| 'color': '#808080'
| }
| },
| 'emphasis': {
| 'show': true
| }
| },
| labelLine: {
| normal: {
| smooth: 0.2,
| length: 9,
| length2: 18
| }
| },
| emphasis: {
| itemStyle: {
| shadowBlur: 10,
| shadowOffsetX: 0,
| shadowColor: 'rgba(0, 0, 0, 0.5)'
| }
| }
| }
| ]
| }, true)
| }
| }
| }
| </script>
|
|
