HE_Mesh extrude and delete inner faces

edited August 2015 in Library Questions

I have this simple extruded 2x1 grid:

I know that every extruded Polygon has its own vertices and faces, so there are alot of double vertices/faces in the mesh) I want to delete the the part where faces share the same coordinates. (the area marked in red)

Anyone has an idea how to do that with HE_Mesh in order to optimize the mesh? I know you to merge double vertices in Blender or meshlab, but deleting the inner faces seems more comlicated than that.

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