VUE3 introductory tutorial: Use Vue.js plug-in to play with SVG

With the continuous development of modern Web front-end development, more and more technologies are widely used in actual development. Among them, Vue.js is currently one of the most popular JavaScript frameworks. It is based on the MVVM model and provides a rich API and component library, making it easier to develop responsive, reusable, and efficient web applications. The latest version of Vue.js 3 has better performance and richer features than the old version, which has attracted widespread attention and research.

This article will introduce you to a method of using Vue.js plug-in to play with SVG. SVG is an XML markup language used to describe two-dimensional vector graphics. It can be directly rendered by the browser and supports responsive design. This article will use Vue.js and the Vue.js plug-in to build a simple SVG gallery to demonstrate the basic use of Vue.js 3.

What is SVG?

SVG, the full name of Scalable Vector Graphics, is scalable vector graphics. It is an open standard based on XML markup language to describe two-dimensional vector graphics. SVG images can be rendered directly through the browser, so they have great advantages in performance, and unlike pixel graphics, SVG graphics are vector graphics, so they will not be distorted no matter they are enlarged or reduced, even if they are enlarged to infinity. Loss of clarity. In addition, SVG also has the characteristics of responsive design, allowing it to maintain the same performance on different devices.

Install Vue.js and Vue.js plug-ins

Before using Vue.js to build an application, you first need to install Vue.js and its plug-ins. Here are the steps to install Vue.js 3:

1. via javascript [javascript] Get started quickly with Vue.js.
2. Or install through npm: npm install vue@next
3. Install the Vue.js plug-in. This article will use the vue-svg plug-in: npm install vue- svg@4.0.1

<div id="app">
  <svg>
    <!-- SVG代码将会在此处插入 -->
  </svg>
</div>

import { createApp } from 'vue'
import App from './App.vue'
import VueSvgPlugin from 'vue-svg'

createApp(App).use(VueSvgPlugin, {url: './assets/img.svg'}).mount('#app')

<template>
  <svg width="800" height="400">
    <rect v-for="(rect, index) in rects"
          :key="index"
          :x="rect.x"
          :y="rect.y"
          :width="rect.width"
          :height="rect.height"
          fill="red"
          @click="removeRect(index)"
          >
    </rect>
  </svg>
</template>

<script>
export default {
  data() {
    return {
      rects: [
        { x: 100, y: 100, width: 100, height: 100 },
        { x: 300, y: 150, width: 150, height: 150 },
        { x: 500, y: 100, width: 120, height: 120 }
      ]
    }
  },
  methods: {
    removeRect(index) {
      this.rects.splice(index, 1)
    }
  }
}
</script>

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