Is there a way to input direction in matlab UI

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Hi, I would like to let users to click on an image and input the normal vector of the pixel. Is there a way to let the users input the direction elegantly? For example a sphere for users to rotate or something like that?
Thank you very much.
Walter Roberson
Walter Roberson on 11 Aug 2020
When you put up an axes (possibly in a separate figure) with just an arrow, then adjusting the view is the same thing as adjusting the arrow angle. Eventually you read off the view() of that axes and use it as the data you wanted about the normal vector of pixel.
I would not say that this is a great way, but it has the advantage of being intuitive to anyone who has used the existing rotate3d tool, and should be easy to code.

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