时舟年
80 lines
1.9 KiB
Vue
80 lines
1.9 KiB
Vue
<template>
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<view class="bt-trend">
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<canvas
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:id="canvasId"
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:canvas-id="canvasId"
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type="2d"
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class="bt-trend__canvas"
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:style="{ width: width + 'px', height: height + 'px' }"
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/>
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</view>
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</template>
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<script>
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import { drawTrendChart } from '@/common/memberInfo/bodyTestChart.js'
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export default {
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options: {
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virtualHost: false,
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styleIsolation: 'apply-shared'
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},
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props: {
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points: { type: Array, default: () => [] },
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unit: { type: String, default: '' },
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width: { type: Number, default: 300 },
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height: { type: Number, default: 160 }
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},
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data() {
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return {
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canvasId: `bt-trend-${Math.random().toString(36).slice(2, 9)}`
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}
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},
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watch: {
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points: {
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deep: true,
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handler() {
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this.renderChart()
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}
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}
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},
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mounted() {
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this.renderChart()
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},
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methods: {
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renderChart() {
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this.$nextTick(() => {
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const query = uni.createSelectorQuery().in(this)
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query
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.select(`#${this.canvasId}`)
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.fields({ node: true, size: true })
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.exec((res) => {
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const node = res?.[0]?.node
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if (!node) return
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const dpr = uni.getSystemInfoSync().pixelRatio || 1
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drawTrendChart(node, {
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width: this.width,
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height: this.height,
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points: this.points,
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unit: this.unit,
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dpr
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})
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})
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})
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}
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}
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}
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</script>
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<style>
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.bt-trend {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 100%;
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}
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.bt-trend__canvas {
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display: block;
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}
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</style>
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