Foreword: The previous article explains in detail the core technology of constructing flow charts in js JsPlumb introduces the effect of JsPlumb on drawing flow charts in the browser, as well as a simple JsPlumb code example . In this article, let’s take a look at the code descriptions of each effect.
1. Code examples for setting the style and color effects of connections
The approximate effect is as shown in the figure:
These effects look very simple, so how do we use code to achieve it. In the last chapter, we said that the connection style of JsPlumb is determined by certain attributes of the points. In this case, we can dynamically change the connection style by setting the point style. Let’s look at the code:
First let’s take a look at the connection type selection
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Register the change event of select when the page is initialized
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In fact, it only takes a few lines of code to set the connection style of the endpoints that already exist and will be dragged to the interface.
2. Select all, select all drag effect code examples
You can select elements and drag elements and connections in batches. The approximate effect is:
Look at the implementation code:
1. Registration can be selected during initialization
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2. Select relevant methods
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3. Alignment and rotation code examples
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The code may be a bit messy and needs to be sorted out. In the previous chapter, a blogger asked me for the source code. This time I have released a preliminary version. I hope it can help everyone better learn the core technology of flow charts, JsPlumb.