How to use jsmind to print and export mind maps to pictures in a Vue project?

How to use jsmind to print and export mind maps to pictures in a Vue project?

Introduction:
In recent years, with the rapid growth of big data and information volume, people need to process and organize knowledge more effectively. As an effective knowledge organization tool, mind mapping is widely used in all walks of life. Using jsmind in the Vue project to realize the functions of printing and exporting mind maps as pictures can help us better organize and share our thinking.

Step 1: Install jsmind
First, we need to install and introduce jsmind into the Vue project. You can install jsmind through npm:

npm install jsmind --save

Then, introduce jsmind into the Vue component:

import jsMind from 'jsmind'
import 'jsmind/style/jsmind.css'

Step 2: Create a mind map
Next, in the life cycle hook of the Vue component Create a mind map instance and initialize its data and display:

export default {
  mounted() {
    this.initMind()
  },
  methods: {
    initMind() {
      let mindData = {
        meta: {
          name: '思维导图',
        },
        format: 'node_tree',
        data: [
          {
            id: 'root',
            isroot: true,
            topic: '主题',
            direction: Mind.direction.right,
          },
        ],
      }
      let options = {
        container: 'jsmind_container',
      }
      let jm = new jsMind(options)
      jm.show(mindData)
    },
  },
}

Add a container to the template to display the mind map:

<template>
  <div id="jsmind_container" style="width: 800px; height: 600px;"></div>
</template>

Step 3: Print the mind map
Add a print button in the Vue component and bind a method to implement the printing function:

<template>
  <div>
    <div id="jsmind_container" style="width: 800px; height: 600px;"></div>
    <button @click="printMindMap">打印</button>
  </div>
</template>

export default {
  methods: {
    printMindMap() {
      window.print()
    },
  },
}

After clicking the print button, the browser will pop up a print window, and the user can select a printer and set printing options.

Step 4: Export the mind map as a picture
Add an export button in the Vue component and bind a method to implement the export function:

<template>
  <div>
    <div id="jsmind_container" style="width: 800px; height: 600px;"></div>
    <button @click="exportMindMap">导出为图片</button>
  </div>
</template>

export default {
  methods: {
    exportMindMap() {
      let canvas = this.$refs.jsmind_container.querySelector('canvas')
      let imgData = canvas.toDataURL('image/png')
      let link = document.createElement('a')
      link.href = imgData
      link.download = '思维导图.png'
      link.click()
    },
  },
}

After clicking the export button, browse The download prompt box will pop up and the user can choose to save the mind map image.

Summary:
Through the above steps, it is relatively simple to use jsmind to print and export mind maps as pictures in the Vue project. We can build a visual knowledge system and print or export it as a picture to share and communicate with others. In practical applications, in addition to printing and exporting as pictures, we can further add more functions, such as saving to local or sharing to social media platforms.

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