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| <template>
| <div :id="mainIndex" class="main-box">
|
| </div>
| </template>
|
| <script setup>
| import { ref, onMounted, nextTick } from 'vue';
| // 引入 echarts 核心模块，核心模块提供了 echarts 使用必须要的接口。
| import * as echarts from 'echarts/core';
| // 引入柱状图图表，图表后缀都为 Chart
| import { LineChart } from 'echarts/charts';
| // 引入提示框，标题，直角坐标系，数据集，内置数据转换器组件，组件后缀都为 Component
| import {
| TitleComponent,
| TooltipComponent,
| GridComponent,
| DatasetComponent,
| TransformComponent
| } from 'echarts/components';
| // 标签自动布局，全局过渡动画等特性
| import { LabelLayout, UniversalTransition } from 'echarts/features';
| // 引入 Canvas 渲染器，注意引入 CanvasRenderer 或者 SVGRenderer 是必须的一步
| import { CanvasRenderer } from 'echarts/renderers';
|
| // 注册必须的组件
| echarts.use([
| TitleComponent,
| TooltipComponent,
| GridComponent,
| DatasetComponent,
| TransformComponent,
| LineChart,
| LabelLayout,
| UniversalTransition,
| CanvasRenderer
| ]);
|
|
| const props = defineProps({
| ratio: {
| type: Number,
| default: 0
| },
| dataObj: {
| type: Object,
| default() {
| return {}
| }
| },
| index: {
| type: Number,
| default: 0
| }
| })
| const { ratio, dataObj, index } = props;
| const mainIndex = `main${index}`
| onMounted(() => {
| nextTick(() => {
|
|
| const width = document.querySelector('.main-box').clientWidth;
| const height = document.querySelector('.main-box').clientHeight;
| const chartDom = document.getElementById(mainIndex);
|
| const lineChart = echarts.init(chartDom);
| chartDom.style.width = width + 'px';
| chartDom.style.height = height + 'px';
|
| function randomData() {
| now = new Date(+now + oneDay);
| value = value + Math.random() * 21 - 10;
| return {
| name: now.toString(),
| value: [
| [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'),
| Math.round(value)
| ]
| };
| }
|
| let data = [];
| let now = new Date(1997, 9, 3);
| let oneDay = 24 * 3600 * 1000;
| let value = Math.random() * 1000;
| for (var i = 0; i < 1000; i++) {
| data.push(randomData());
| }
| let greenColor = [
| {
| offset: 0,
| color: 'rgb(17,202,161,0.8)'
| },
| {
| offset: 1,
| color: 'rgb(17,202,161,0.1)'
| }
| ]
| let redColor = [
| {
| offset: 0,
| color: 'rgb(227,85,97,0.8)'
| },
| {
| offset: 1,
| color: 'rgb(227,85,97,0.1)'
| }
| ]
| let option = {
| // tooltip: {
| // trigger: 'axis',
| // formatter: function (params) {
| // params = params[0];
| // let date = new Date(params.name);
| // return (
| // date.getDate() +
| // '/' +
| // (date.getMonth() + 1) +
| // '/' +
| // date.getFullYear() +
| // ' : ' +
| // params.value[1]
| // );
| // },
| // axisPointer: {
| // animation: false
| // }
| // },
| xAxis: {
| show: false,
| type: 'time',
| splitLine: {
| show: false
| }
| },
| yAxis: {
| show: false,
| type: 'value',
| boundaryGap: [0, '100%'],
| splitLine: {
| show: false
| }
| },
| series: [
| {
| name: 'Fake Data',
| type: 'line',
| showSymbol: false,
| data: data,
| itemStyle: {
| color: ratio < 0 ? '#E35561' : '#11caa1',
| },
| areaStyle: {
| color: new echarts.graphic.LinearGradient(0, 0, 0, 1, ratio < 0 ? redColor :greenColor)
| },
| },
|
| ]
| }
|
| option && lineChart.setOption(option);
| })
| })
|
| </script>
|
| <style lang="scss" scoped>
| .main-box {
| height: 55px !important;
| }
| </style>
|
|
