I am looking for a way to dynamically calculate distance on a canvas, similar to the example shown in the figure. I want to be able to drag the highlighted joints in order to adjust the span for calculating distances. Are there any plugins available for this functionality? If not, can you provide some suggestions on how to achieve this effectively? Thank you.
For my projects, I rely on Google closure which includes a useful distance function:
If you're working on a complex drawing application, I highly recommend using this tool.
If implementing Google closure is not feasible for you, take a look at the "Source Code" link provided above to find similar functionality that can be integrated into your own code.
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