DemuMesDataV/components/decoration3/index.vue

109 lines
2.2 KiB
Vue

<template>
<div class="dv-decoration-3" :ref="ref">
<svg :width="`${svgWH[0]}px`" :height="`${svgWH[1]}px`" :style="`transform:scale(${svgScale[0]},${svgScale[1]});`">
<template
v-for="(point, i) in points"
>
<rect
:key="i"
fill="#7acaec"
:x="point[0] - halfPointSideLength"
:y="point[1] - halfPointSideLength"
:width="pointSideLength"
:height="pointSideLength"
>
<animate
v-if="Math.random() > 0.6"
attributeName="fill"
values="#7acaec;transparent"
:dur="Math.random() + 1 + 's'"
:begin="Math.random() * 2"
repeatCount="indefinite"
/>
</rect>
</template>
</svg>
</div>
</template>
<script>
import autoResize from '../../mixins/autoResize.js'
export default {
name: 'Decoration3',
mixins: [autoResize],
data () {
const pointSideLength = 7
return {
ref: 'decoration-3',
svgWH: [300, 35],
svgScale: [1, 1],
rowNum: 2,
rowPoints: 25,
pointSideLength,
halfPointSideLength: pointSideLength / 2,
points: []
}
},
methods: {
afterAutoResizeMixinInit () {
const { calcSVGData } = this
calcSVGData()
},
calcSVGData () {
const { calcPointsPosition, calcScale } = this
calcPointsPosition()
calcScale()
},
calcPointsPosition () {
const { svgWH, rowNum, rowPoints } = this
const [w, h] = svgWH
const horizontalGap = w / (rowPoints + 1)
const verticalGap = h / (rowNum + 1)
let points = new Array(rowNum).fill(0).map((foo, i) =>
new Array(rowPoints).fill(0).map((foo, j) => [
horizontalGap * (j + 1), verticalGap * (i + 1)
]))
this.points = points.reduce((all, item) => [...all, ...item], [])
},
calcScale () {
const { width, height, svgWH } = this
const [w, h] = svgWH
this.svgScale = [width / w, height / h]
},
onResize () {
const { calcSVGData } = this
calcSVGData()
}
}
}
</script>
<style lang="less">
.dv-decoration-3 {
width: 100%;
height: 100%;
svg {
transform-origin: left top;
}
}
</style>