8d73e917
 陈威
初始化提交
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<!--
* User: CHT
* Date: 2020/6/27
* Time: 15:55
-->
<template>
<canvas ref="markLine" class="super-flow__mark-line"></canvas>
</template>
<script>
export default {
props: {
width: {
type: Number,
default: 0,
},
height: {
type: Number,
default: 0,
},
markLine: Array,
markColor: String,
},
watch: {
markLine() {
this.draw()
},
},
mounted() {
this.$refs.markLine.height = this.height
this.$refs.markLine.width = this.width
this.draw()
},
methods: {
draw() {
const ctx = this.$el.getContext('2d')
ctx.clearRect(0, 0, this.width, this.height)
ctx.strokeStyle = this.markColor
ctx.lineWidth = 1
ctx.setLineDash([4, 2])
this.markLine.forEach(([start, end]) => {
ctx.beginPath()
ctx.moveTo(...start)
ctx.lineTo(...end)
ctx.stroke()
})
},
},
}
</script>
<style lang="scss" scoped>
.super-flow__mark-line {
position: absolute;
z-index: 0;
border: 1px solid transparent;
}
</style>
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