138 lines
3.1 KiB
Vue
138 lines
3.1 KiB
Vue
<template>
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<view class="rateMain">
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<image v-if="preferPath" style="width: 144rpx;height: 144rpx" :src="preferPath"></image>
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<canvas style="width: 144rpx;height: 144rpx;position:fixed;left: 100%" :canvas-id="name" id="rate" />
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</view>
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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: "rateCharts",
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data() {
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return {
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preferPath: '',
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}
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},
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props: {
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success: {
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type: Array,
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default: []
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},
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colorList: {
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type: Array,
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default: []
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},
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name: {
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type: String,
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default: ''
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}
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},
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watch: {
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success: {
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handler(value) {
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this.preferPath = ''
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let sum = value[0] + value[1]
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if (sum === 0) {
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let res = {
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series: [{
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data: [{ name: '便利店', value: 0 }, { name: '餐饮客房', value: 0 }]
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}]
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}
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this.drawCharts(this.name, res)
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} else {
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let firstRate = Number(((value[0] / sum) * 100).toFixed(2))
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let secondRate = Number(((value[1] / sum) * 100).toFixed(2))
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let res = {
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series: [{
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data: [{ name: '便利店', value: firstRate }, { name: '餐饮客房', value: secondRate }]
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}]
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}
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this.drawCharts(this.name, res)
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}
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},
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immediate: true
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}
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},
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methods: {
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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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uChartsInstance[id] = new uCharts({
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type: "ring",
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context: ctx,
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width: 72,
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height: 72,
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series: data.series,
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animation: false,
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rotate: false,
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rotateLock: false,
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background: "#FFFFFF",
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color: _this.colorList,
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padding: [5, 5, 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: "right",
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lineHeight: 25
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},
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title: {
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name: '模式占比',
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fontSize: 10,
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color: "#A69E9F"
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},
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extra: {
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ring: {
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ringWidth: 8,
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activeOpacity: 0.5,
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activeRadius: 10,
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offsetAngle: -90,
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labelWidth: 15,
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border: false,
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borderWidth: 3,
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customRadius: 34,
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borderColor: "#FFFFFF"
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}
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}
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});
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setTimeout(() => {
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_this.canvasToTempImage(_this.name)
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}, 500)
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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.preferPath = 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 lang="scss" scoped>
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.rateMain {
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width: 144rpx;
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height: 144rpx;
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.month {
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width: 136rpx;
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height: 136rpx;
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position: fixed;
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left: 100%;
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}
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}
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</style>
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