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From: henry wang on 4 May 2010 16:20
Hi,

How do you allow the user to draw any shape on a figure in guide?

To be clear, say I want to draw a triangle so I want to allow the user to click on 3 points in the figure in guide and I want to extract the points along the perimeter.

thanks.
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Next: Relation between Hough & Radon Transform Matrices