Only Corners Points

[hanywillim]

Hi my Friends,
I am trying to get the corners of the surfaces which made by many continues lines
May anyone guide me for the way to get only the corners of all shapes, for example the one which marked by red line has many points and i have no idea to get only the corners of them.
I really appreciate any help
Thanks in advance.

[RMohareb]

Hi @hanywillim
You can use Alpha shape algorithm

Alpha Shape proplem (Draw outer line around the outside point Cloud at the same plane by ignoring any points that would fall inside.)

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Concave Hull (Alpha Shape) from list of points with Python?

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[christian.stan]

good evening,
assuming we have the starting surfaces
Here is an approach

cordially
christian.stan

[Vladimir]

you can use CurveLoop.Simplify from Spring packages. Also about importing DWG polylines: Group lines from DWG, PolyCurves from DWG - #13 by Vladimir