MATLAB: How to make a trace or curve around a set of points to signify region

regiontrace

Hi everyone,
 So I have a figure that contains 3 sets of data. For each of the sets of data, there are points that cluttered in a certain region of the 3D plot. I was wondering how I could possibly trace or put a curve *around* the points. So in theory I want to include just a *region* where the points were found and not the points themselves. Thank you in advance for your help.
Casey

Best Answer

You could use IMFREEHAND or IMPOLY if you have the Image Processing Toolbox.
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