I wanted to create a shape within the contour so I used delaunay triangulation. This returned all the triangles that build up the convex hull of the points. This was great but I only wanted the triangles inside the contour. Theo gave me a really great inside polygon test which solved this. I made sure that the center of each triangle was inside the contour. I think this will work if I create static shapes that build up the contour. Zach also had a great idea to check to see if the shape is inside the polygon. I could built a contact listener that checks to see if its inside and if so remove.