Partitioning Rectilinear Polygon

[laurent_delrieu]

You could look at that

Divide surface based on corners

Hi, I would like to divide uneven surface based on corners/edges. Kindly see attached surface where I need to divide A to look like B. Would be great if it can be achieved with grasshopper. Is there any component or method I could do that. Tried using extend curve and heteroptera but gets weird with intersections in middle. [surface-partition] surface-partition.dwg (15.5 KB)