130 lines
3.6 KiB
Vue
130 lines
3.6 KiB
Vue
<template>
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<div class="revenueTrends">
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<canvas v-if="!trendsPath" class="trends" canvas-id="trends" id="trends"/>
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<image v-if="trendsPath" class="trends" :src="trendsPath"></image>
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</div>
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</template>
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<script>
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import uCharts from '@/components/u-charts.js';
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var uChartsInstance = {};
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export default {
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name: "revenueTrends",
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data() {
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return {
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trendsPath:''
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}
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},
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props: {
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data: {
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type: Object,
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default: () => {}
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}
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},
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watch: {
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data: {
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handler(value) {
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console.log('carDatawatch', value)
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this.handleCarData(value)
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}
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}
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},
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methods: {
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// 处理传入的数据
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handleCarData(value) {
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let res = value
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this.drawCharts('trends', res)
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},
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drawCharts(id, data) {
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const ctx = uni.createCanvasContext(id, this);
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let _this = this
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let phoneInfo = uni.getStorageSync('phoneInfo')
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this.width = phoneInfo.screenWidth - 16
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uChartsInstance[id] = new uCharts({
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type: "area",
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context: ctx,
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width: _this.width ,
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height: 213,
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categories: data.categories,
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series: data.series,
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animation: true,
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rotate: false,
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rotateLock: false,
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background: "#FFFFFF",
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color: ["#1E80FF"],
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padding: [15, 15, 5, 5],
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dataLabel: false,
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enableScroll: false,
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legend: {
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show: false,
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position: "bottom",
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lineHeight: 25,
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float: 'center'
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},
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xAxis: {
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disableGrid: true,
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axisLineColor:'#F2F2F5'
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},
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yAxis: {
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splitNumber:4,
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showTitle:true,
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gridColor:'#F2F2F5',
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data:[
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{
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min:0,
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max:12,
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title:'单位: 千万',
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titleOffsetY:-5,
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titleOffsetX:8,
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fontSize:12,
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axisLineColor:'#F2F2F5'
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}
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]
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},
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extra: {
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area: {
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type: "curve",
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opacity: 0.8,
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addLine: true,
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width: 2,
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gradient: true,
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activeType: "hollow"
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}
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}
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});
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setTimeout( ()=>{
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this.canvasToTempImage('trends')
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},2000)
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},
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canvasToTempImage(id){
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uni.canvasToTempFilePath({
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canvasId:id,
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complete:(res)=>{
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if (res.tempFilePath){
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uni.getFileSystemManager().readFile({
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filePath: res.tempFilePath,
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encoding: 'base64',
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success: res => {
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let base64 = 'data:image/png;base64,' + res.data;
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this.trendsPath = base64
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}
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})
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}
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}
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},this)
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},
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}
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}
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</script>
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<style scoped lang="scss">
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.revenueTrends{
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width: 100%;
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.trends{
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width: calc(100vw - 32px);
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height: 208px;
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}
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}
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</style>
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