Voronoi polygons

I need to color the voronoi polygons in such a way that the color of each polygon depends on the z value of the specific points used for generating the voronoi polygons in 2-D.

I also need to make sure that the polygons are generated in a delimited area.

Thank you.

[Bruno Lopes]

You can use this code: https://it.mathworks.com/matlabcentral/fileexchange/34428-voronoilimit-varargin

It is the best I found on the internet. It is really useful.