How to use Vue and jsmind to implement the node labeling and annotation functions of mind maps?

How to use Vue and jsmind to implement the node labeling and annotation functions of mind maps?

Introduction:
Mind map is a tool used to express and organize thinking. It visualizes the relationship between different topics and subtopics through a tree structure, making the ideas clear and easy to understand. In practical applications, we often need to mark and annotate the nodes of the mind map to better record and analyze the thinking process. This article will introduce how to use Vue and jsmind to build a simple mind map and implement node labeling and annotation functions.

1. Preparation:

1. Install Vue and jsmind.
   Run the following command in the terminal:

   npm install vue
   npm install jsmind

2. Create a Vue project.
   Run the following command in the terminal:

   vue create mindmap-demo

3. Introduce jsmind.
   Add the following code in the project entry file (usually main.js):

   import jsmind from 'jsmind'
   Vue.use(jsmind)

2. Build the mind map:

1. Create a Vue componentMindmap to host the mind map.
   Add the following code in the src/components/Mindmap.vue file:

   <template>
     <div ref="mindmap"></div>
   </template>
   
   <script>
     export default {
       name: 'Mindmap',
       mounted() {
         const mindmap = new jsmind({
           container: this.$refs.mindmap,
           editable: true,
           view: {
             hmargin: 100,
             vmargin: 50,
           },
         })
         const mind = {
           meta: {
             name: '思维导图',
             author: '作者',
             version: '1.0',
           },
           format: 'node_array',
           data: [
             { id: 'root', isroot: true, topic: '主题' },
           ],
         }
         mindmap.show(mind)
       },
     }
   </script>

2. Use ## in the root component App #MindmapComponent. Add the following code in the
   src/App.vue file:

   <template>
     <div id="app">
       <Mindmap></Mindmap>
     </div>
   </template>
   
   <script>
     import Mindmap from './components/Mindmap'
   
     export default {
       name: 'App',
       components: {
         Mindmap,
       },
     }
   </script>

3. Run the project.

   Run the following command in the terminal:
   

   npm run serve

   Open the browser and visit

   http://localhost:8080, you will see a blank mind map.

3. Implement node labeling and annotation functions:

1. How to add node labeling and annotation in the

   Mindmap component . Add the following code in the
   mounted method in the src/components/Mindmap.vue file:

   mounted() {
     // ...
   
     mindmap.add_node('root', 'node1', '节点1', { marker: '●', note: '这是节点1的注释。' })
   },

   The above code means adding a child on the root node nodes and add labels and comments.

2. Add node selection and editing methods in the

   Mindmap component. Add the following code in the
   mounted method in the src/components/Mindmap.vue file:

   mounted() {
     // ...
   
     mindmap.enable_edit(function (node) {
       console.log('选中了节点：', node)
     }, function (node, value, callback) {
       if (typeof node !== 'object' || typeof value !== 'string' || typeof callback !== 'function') {
         return
       }
       console.log('编辑节点', node, '的内容为：', value)
       callback()
     });
   },

   The above code means to enable the function of node selection and editing , and print relevant information in the corresponding callback function.

3. Run the project.

   Run the following command in the terminal:
   

   npm run serve

   Open the browser and visit

   http://localhost:8080, you will see a mind map with annotation and annotation functions .

Conclusion:

Using Vue and jsmind can easily build mind maps and implement node labeling and annotation functions. Through the above steps, we can quickly build a simple mind map and label and annotate nodes as needed. I hope this article is helpful to you, and I wish you to be more efficient in thinking and learning!

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