Is there a way in CGA code to check if a 2D scope contains any acute angles? The reason I ask is that I don't want to generate a building on any lots with acute angles (generate a Park instead maybe). I can check for 3 sided lots and rule them out, but it doesn't help with cases like this . . .
. . . .where there are 4 verts and 4 'sides' even though 2 of the sides are co-incident. Checking for an acute angle would solve this, as there are 2 acute internal angles. This strikes me as quite a basic thing to want to check for, before generating a building.
Any help appreciated.