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| <template>
| <div class="e-chart-root" @dblclick="fullScreen" :class="{'full-screen': fullScreenState}">
| <div class="e-chart-container">
| <div class="e-chart" :id="id" :ref="id"></div>
| </div>
| <!-- <object ref="resizeBox" tabindex="-1" type="text/html" aria-hidden='true' data="about:blank" class="resize-box"></object> -->
| </div>
| </template>
|
| <script>
| // 引入 ECharts 主模块
| import ECharts from "echarts/lib/echarts";
| //引入折线图
| import "echarts/lib/chart/line";
| //引入提示框
| import "echarts/lib/component/tooltip";
| //引入标题
| import "echarts/lib/component/title";
| //引入图例标志
| import "echarts/lib/component/legend";
| //区域缩放
| import "echarts/lib/component/dataZoom";
|
| //markeline
| import "echarts/lib/component/markLine"
|
| // 引入自定义主题
| import "./theme/transparent"
| //监听div变化改变chart图大小
| //import EleResize from "./theme/EleResize.js";
|
| export default {
| props: {
| id: {
| type: String,
| required: true,
| },
| unit: {
| type: String,
| default: '',
| }
| },
| data() {
| return {
| fullScreenState: false,
| name: '',
| names: [],
| }
| },
| methods: {
| getOption(opt) {
| let unit = this.unit;
| // 整体配置项
| let option = {
| animation: false,
| color: this.getColor(opt),
| title: this.getTitle(opt),
| tooltip: {
| trigger: 'axis',
| axisPointer: { // 坐标轴指示器，坐标轴触发有效
| type: 'line' // 默认为直线，可选为：'line' | 'shadow'
| },
| appendToBody: true,
| formatter(params) {
| var res = params[0].name + '<br/>';
| params.forEach(item => {
| res += item.marker;
| res += item.seriesName;
| res += ' : ' + item.data[1] + unit + '</br>';
| });
| return res;
| }
| },
| dataZoom: [
| {
| start: 0,
| end: 5,
| handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
| handleSize: '80%',
| handleStyle: {
| color: '#fff',
| shadowBlur: 3,
| shadowColor: 'rgba(0, 0, 0, 0.6)',
| shadowOffsetX: 2,
| shadowOffsetY: 2
| }
| }
| ],
| grid: {
| left: '3%',
| right: '4%',
| bottom: 60,
| },
| legend: this.getLegend(opt),
| xAxis: this.getXAxis(opt),
| yAxis: [{
| type: 'value',
| splitLine: {
| show: true,
| },
| min: function(data) {
| let min = data.min;
| if (min == Infinity) {
| return 0;
| }
| if (min > 0) {
| return Math.floor(min * 0.9);
| } else {
| return Math.floor(min * 1.01);
| }
|
| },
| max: function(data) {
| let max = data.max;
| if (max == -Infinity) {
| return 1;
| }
| return Math.ceil(max * 1.01);
| }
| }],
| series: this.getSeries(opt),
| };
| return option;
| },
| setOption(opt) {
| this.setNames(opt);
| let option = this.getOption(opt);
| // 清理画布
| this.$G.chartManage.get(this.id).clear();
| // 设置配置项
| this.$G.chartManage.get(this.id).setOption(option);
| },
| // 配置自定义颜色
| getColor(opt) {
| // 未配置自定义颜色
| if (!opt || !opt.color) {
| return []
| }
|
| // 返回颜色
| return opt.color;
| },
| // 配置标题
| getTitle(opt) {
| // 未配置标题
| if (!opt || !opt.title) {
| return {
| show: false,
| };
| }
|
| // 返回标题
| return opt.title;
| },
| getLegend(opt) {
| // 未配置legend
| if (!opt || !opt.legend) {
| return {
| show: false,
| }
| }
|
| let legend = opt.legend;
| legend.show = false;
| legend.data = this.names;
| let selected = {};
| this.names.forEach(function(item) {
| selected[item]=false;
| });
|
| // 默认全部不渲染
| legend.selected = selected;
| return opt.legend;
| },
| getXAxis(opt) {
| // 未配置x轴
| if (!opt || !opt.xAxis) {
| return [{
| type: 'category',
| boundaryGap: 0,
| }]
| }
|
| return opt.xAxis;
| },
| // 设置series
| getSeries(opt) {
| // 未配置series
| if (!opt || !opt.series) {
| return [];
| }
| // 设置配置项
| let series = opt.series.map(item => {
| // 设置类型
| item.type = "line";
| // 设置平滑的线条，关闭圆圈，设置采样点
| item.smooth = true;
| item.symbolSize = 0;
| item.sampling = 'average';
| return item;
| });
| // 没有内容
| if(series.length == 0) {
| return [{
| name: '初始化内容',
| type: 'line',
| data: []
| }];
| }
| // 返回
| return series;
| },
| getMax(list) {
| let arr = list.map(item => {
| return item[1];
| });
| return Math.max.apply(null, arr);
| },
| getMin(list) {
| let arr = list.map(item => {
| return item[1];
| });
| return Math.min.apply(null, arr);
| },
| resize() {
| this.$G.chartManage.get(this.id).resize();
| },
| fullScreen() {
| this.fullScreenState = this.fullScreenState ? false : true;
| this.$nextTick(() => {
| // 重置大小
| this.$G.chartManage.get(this.id).resize();
| });
| },
| setLegend(name) {
| let chart = this.$G.chartManage.get(this.id);
| // 关闭上一个显示的线条
| chart.dispatchAction({
| type: 'legendUnSelect',
| name: this.name
| });
| // 设置显示的线条
| chart.dispatchAction({
| type: 'legendSelect',
| name: name
| });
| // 存储线条
| this.name = name;
| },
| appendData(list) {
| let chart = this.$G.chartManage.get(this.id);
| list.forEach(function(item, index){
| chart.appendData({
| seriesIndex: index,
| data: item
| });
| });
| chart.resize();
| },
| setNames(opt) {
| // 未配置series
| if(!opt || !opt.series) {
| this.names = [];
| return;
| }
|
| // 设置名称列表
| this.names = opt.series.map(function(item){
| return item.name;
| });
| }
| },
| mounted() {
| // 基于准备好的dom，初始化echarts实例
| let chart = ECharts.init(this.$refs[this.id], 'transparent');
| // 将图表添加到图表管理
| this.$G.chartManage.set(this.id, chart);
| // 设置配置项
| this.setOption();
| }
| }
| </script>
|
| <style scoped>
| .e-chart-root,
| .e-chart-container,
| .e-chart {
| height: 100%;
| box-sizing: border-box;
| }
|
| .e-chart-root.full-screen .e-chart-container {
| position: fixed;
| top: 0;
| left: 0;
| right: 0;
| bottom: 0;
| background-size: 100% 100%;
| z-index: 9999;
| }
|
| .resize-box {
| display: block;
| position: absolute;
| top: 0px;
| left: 0px;
| width: 100%;
| height: 100%;
| border: none;
| padding: 0px;
| margin: 0px;
| opacity: 0;
| z-index: -1000;
| pointer-events: none
| }
| </style>
|
|
