How to built the smaller copy of an existing 2D convex hull?

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Is there any algorithm (or better C# subroutine) to decrease an existing
2D convex hull on the desired percent (for example, to obtain a 90% central area of the known convex hull)? Thank you for your help!

What I have tried:

I can create points of a 100% convex hull, but it is necessary to make the area smaller (decreased on equal margins along each direction from the edges).

Posted 20-Nov-17 11:53am

SuperSlavik

Updated 20-Nov-17 11:58am

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phil.o 20-Nov-17 18:28pm

If your hull is convex then the scaling can be done simply with matrix operation. You can search for "convex hull matrix scalling c#" in your favorite search engine.

SuperSlavik 21-Nov-17 0:40am

Thank you very much!

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