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Extra Credit
(Extra Credit is fun!!!)
1. Extend the interface to allow interactive scaling and rotations of
polygons around a chosen point. Using matrices is one way…
2. Extend the interface to allow insertion and deletion of vertices in an already-defined polygon. Not hard
mathematically, but think of usability as well.
3. Allow the number of vertices in a polygon to be different at any keyframe. Example: square to house.
