PDE: Subdivide edge to assign different boundary conditions

I want to solve a 2nd order elliptic PDE on a two-dimensional square.

Can I assign different boundary conditions to two pieces of the same side of this square?

I am currently creating my geometry with geometryFromEdges and decsg

Answer 1

[Bananach]

Use a polygon instead of a rectangle (which is created as special case of a polygon anyway). Create multiple vertices on the side of the square which you want to subdivide.

http://www.mathworks.com/help/pde/ug/create-geometry-at-the-command-line.html