How can I show the scale of my arrow in a quiver plot?

Question

Ashfaq Ahmed 2022-1-10

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https://ww2.mathworks.cn/matlabcentral/answers/1626080-how-can-i-show-the-scale-of-my-arrow-in-a-quiver-plot

回答： DGM 2022-1-11

Hi!

If I want to display the scale of my arrows on a quiver plot I got from my u and v velocities, how can I set the scale bar in the figure so that the reader can look at my arrows and understand how they're size relate to the axis of the plot.

I attached a picture so that the question beocmes more convenient to you!

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Answer 1

DGM 2022-1-11

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https://ww2.mathworks.cn/matlabcentral/answers/1626080-how-can-i-show-the-scale-of-my-arrow-in-a-quiver-plot#answer_872580

Oof. This is one of the many reasons I don't like dealing with quiver plots. There are a few tools on the File Exchange that may be useful, but I haven't used any of them myself:

https://www.mathworks.com/matlabcentral/fileexchange/24482-quivers

https://www.mathworks.com/matlabcentral/fileexchange/17582-ncquiverref