How to use Vue and jsmind to implement node links and internal jumps in mind maps?-Vue.js-php.cn

How to use Vue and jsmind to implement node links and internal jumps in mind maps?

Mind mapping is a tool that helps us organize our thoughts and display our thinking. In modern applications, we can use Vue.js and jsmind libraries to create interactive mind maps. This article will introduce how to use Vue and jsmind to implement node links and internal jumps in mind maps.

First, we need to install the Vue and jsmind libraries. These libraries are available through npm or CDN. In the Vue project, we can add the following dependencies in thepackage.jsonfile:

{ "dependencies": { "vue": "^2.6.11", "jsmind": "^1.0.3" } }

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Then, we can create a Vue component to host the mind map. In the template, we can use the

element to wrap jsmind's DOM element. In Vue'smounted()life cycle hook, we can initialize the mind map and render the nodes. The following is a simple Vue component example: In the

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code, we first import thejmobject from thejsmindlibrary and mount it in the component'smounted( )Use this object in the method to initialize the mind map. We also specified the name of the mind map container asjsMindContainerin theoptionsobject. In the Vue template, we specify arefattribute within the

element to reference this container.

Now we can render an empty mind map. Next, we will show how to implement node links and internal jumps in mind maps.

First, we need to add the link attribute to the data structure of the mind map. In each node object, we can add aurlattribute to represent the link address of the node. For example:

const mind = { "meta": { "name": "思维导图", "author": "你的名字" }, "format": "node_array", "data": [ { "id": "root", "isroot": true, "topic": "根节点" }, { "id": "node1", "parentid": "root", "topic": "节点1", "url": "http://example.com" }, { "id": "node2", "parentid": "root", "topic": "节点2", "url": "" }, { "id": "node3", "parentid": "root", "topic": "节点3", "url": "" } ] }

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In the above code, we added aurlattribute to each node object of thedataarray. This attribute can store the link address of the node. The link address of node 1 ishttp://example.com, while nodes 2 and 3 have no link addresses.

Next, we need to add links to the node template rendered by the mind map. We can use the second parameter of jsmind'sshowmethod to customize the node. We can use Vue'sv-htmldirective to render the node's content and conditionally add thetag based on the link attribute. The following is the modified Vue component sample code:

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In the above code, we use the link attribute of the node in the callback function in the second parameter of thejmInstance.show()method Thetag is conditionally added. If the link attribute exists, the node text is wrapped with thetag, otherwise only the node text is rendered.

Now, when we click on a node with a link, a new tab will open and jump to the link address. For nodes without links, no operations will be triggered after clicking.

To summarize, using Vue and jsmind to implement node links and internal jumps in mind maps only requires adding the link attribute of the node, and conditionally addingLabel. The above sample code can help us accomplish this task. Hope this article can be helpful to you!

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