Split rectangle into random polygons

Question

I have a rectangle. I want to split it into polygons, which will not overlap and without leaving gaps. I want big ones end smaller ones, non-convex ones too, but all with shape similar to circle. Something like this:

Has anyone any idea or help to solve this problem?

Answer 1

I think you can first generate Voronoi diagram and then add a little modify to introduce some concave ones