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安装 npm install --save vue-sketch-ruler 示例

<template>
  <div class="wrapper" id="wrapper">
    <SketchRule
      :lang="lang"
      :thick="thick"
      :scale="scale"
      :width="width"
      :height="height"
      :startX="startX"
      :startY="startY"
      :shadow="shadow"
      :horLineArr="lines.h"
      :verLineArr="lines.v"
      :cornerActive="true"
      @handleLine="handleLine"
      @onCornerClick="handleCornerClick"
    ></SketchRule>
    <div ref="screensRef" id="screens" @wheel="handleWheel" @scroll="handleScroll">
      <div ref="containerRef" class="screen-container">
        <div id="canvas" :style="canvasStyle" />
      </div>
    </div>
  </div>
</template>
<script>
import Vue from 'vue'
import SketchRule from 'vue-sketch-ruler'

const rectWidth = 960
const rectHeight = 720
export default Vue.extend({
    data() {
        return {
            scale: 1, 
            startX: 0,
            startY: 0,
            lines: {
                h: [100, 200],
                v: [100, 200],
            },
            thick: 20,
            width: 500,
            height: 400,
            lang: 'zh-CN', // 中英文
            isShowRuler: true, // 显示标尺
            isShowReferLine: false, // 显示参考线
        }
    },
    components: {
        SketchRule,
    },
    computed: {
        shadow() {
            return {
                x: 0,
                y: 0,
                width: rectWidth,
                height: rectHeight,
            }
        },
        canvasStyle() {
            return {
                width: rectWidth + 'px',
                height: rectHeight + 'px',
                transform: `scale(${this.scale})`,
            }
        },
    },
    methods: {
        handleLine(lines) {
            this.lines = lines
        },
        handleCornerClick() {

        },
        handleScroll() {
            const screensRect = document
            .querySelector('#screens')
            .getBoundingClientRect()
            const canvasRect = document
            .querySelector('#canvas')
            .getBoundingClientRect()

            // 标尺开始的刻度
            const startX = (screensRect.left + this.thick - canvasRect.left) / this.scale
            const startY = (screensRect.top + this.thick - canvasRect.top) / this.scale

            this.startX = startX >> 0
            this.startY = startY >> 0
        },
        // 控制缩放值
        handleWheel(e) {
            if (e.ctrlKey || e.metaKey) {
                e.preventDefault()
                const nextScale = parseFloat(
                    Math.max(0.2, this.scale - e.deltaY / 500).toFixed(2),
                )
                this.scale = nextScale
            }
            this.$nextTick(() => {
                this.handleScroll()
            })
        },
        initSize() {
            const wrapperRect = document
            .querySelector('#wrapper')
            .getBoundingClientRect()
            const borderWidth = 1
            this.width = wrapperRect.width - this.thick - borderWidth
            this.height = wrapperRect.height - this.thick - borderWidth
        },
    },
    mounted() {
        // 滚动居中
        this.$refs.screensRef.scrollLeft = this.$refs.containerRef.getBoundingClientRect().width / 2 - 300 // 300 = #screens.width / 2
        this.$nextTick(() => {
            this.initSize()
        })
    },
})
</script>
<style>
body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  overflow: hidden;
}

body * {
  box-sizing: border-box;
  user-select: none;
}

.wrapper {
  background-color: #f5f5f5;
  position: absolute;
  top: 100px;
  left: 100px;
  width: 900px;
  height: 700px;
  border: 1px solid #dadadc;
}

#screens {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: auto;
}

.line {
}

.screen-container {
  position: absolute;
  width: 5000px;
  height: 3000px;
}

.scale-value {
  position: absolute;
  left: 0;
  bottom: 100%;
}

.button {
  position: absolute;
  left: 100px;
  bottom: 100%;
}

.button-ch {
  position: absolute;
  left: 200px;
  bottom: 100%;
}

.button-en {
  position: absolute;
  left: 230px;
  bottom: 100%;
}

#canvas {
  position: absolute;
  top: 80px;
  left: 50%;
  margin-left: -80px;
  width: 160px;
  height: 200px;
  background: lightblue;
  transform-origin: 50% 0;
}
</style>

效果图