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| <template>
| <div>
| <div id='streetlightChart' style='height:150px;width:100%'></div>
| </div>
| </template>
| <script>
| import echarts from 'echarts'
| export default {
| data () {
| return {
| brightNum: 0,
| notBrightNum: 0
| }
| },
| computed: {
| streetlightList () {
| return this.$store.state.home.homeStreetlightList
| }
| },
| watch: {
| streetlightList (curVal, oldVal) {
| this.notBrightNum = 0
| this.brightNum = 0
| var streetlightList = curVal
| for (var i = 0; i < streetlightList.length; i++) {
| if (streetlightList[i].light === 0) {
| this.notBrightNum++
| } else {
| this.brightNum++
| }
| }
| this.drawChart()
| }
| },
| methods: {
| drawChart () {
| var option = {
| color: ['#09BAFE', '#FC0A15'],
| title: {
| text: '亮灯/台',
| left: 'center',
| top: '45%',
| textStyle: {
| color: 'white',
| fontSize: 13,
| align: 'center'
| }
| },
|
| graphic: [
| {
| type: 'group',
| left: '15%',
| top: '15%',
| children: [
| {
| type: 'text',
| z: 100,
| style: {
| fill: '#FC0A15',
| text: [this.notBrightNum].join('\n'),
| font: '14px Microsoft YaHei'
| }
| }
| ]
| },
| {
| type: 'group',
| left: '70%',
| top: '15%',
| children: [
| {
| type: 'text',
| z: 100,
| left: 50,
| top: 500,
| style: {
| fill: '#09BAFE',
| text: [this.brightNum].join('\n'),
| font: '14px Microsoft YaHei'
| }
| }
| ]
| }
| ],
|
| tooltip: {
| trigger: 'item',
| // formatter: '{a} <br/>{b}: {c} ({d}%)',
| formatter: '{a} <br/>{b}: {c}',
| position: function (point, params, dom, rect, size) {
| // 其中point为当前鼠标的位置，size中有两个属性：viewSize和contentSize，分别为外层div和tooltip提示框的大小
| var x = point[0] //
| var y = point[1]
| var boxWidth = size.contentSize[0]
| var boxHeight = size.contentSize[1]
| var posX = 0 // x坐标位置
| var posY = 0 // y坐标位置
|
| if (x < boxWidth) {
| // 左边放不开
| posX = 5
| } else {
| // 左边放的下
| posX = x - boxWidth
| }
|
| if (y < boxHeight) {
| // 上边放不开
| posY = 5
| } else {
| // 上边放得下
| posY = y - boxHeight
| }
|
| return [posX, posY]
| }
| },
| series: [
| {
| name: '灯杆亮灯数量',
| type: 'pie',
| radius: ['55%', '70%'],
| avoidLabelOverlap: false,
| label: {
| normal: {
| show: false
| },
| emphasis: {
| show: false,
| textStyle: {
| fontSize: '5',
| fontWeight: 'bold'
| }
| }
| },
| labelLine: {
| normal: {
| show: false
| }
| },
| data: [{ value: this.brightNum, name: '亮灯数量' }, { value: this.notBrightNum, name: '未亮灯数量' }]
| }
| ]
| }
|
| var streetlightChart = echarts.init(document.getElementById('streetlightChart'))
| streetlightChart.setOption(option)
| }
| }
| }
| </script>
| <style>
| </style>
|
|
