[Untitled] So, my aim is to construct (closed) surfaces from these curves/polylines that represent roofs of buildings, so that I later can extrude the edges and trim against a terrain. The script I’ve made so far does not work entirely, leaving some open spots. Not sure if weaverbird is the best …

It is a really interesting problem to me, so I had another look at it. This time i split the floor plan into fragments, extruded each of these, and used fit plane to points to define the roof plane for each of these fragments. [Capture] This way you get perfectly smooth roof surfaces, but they do…

Roof surfaces from 3D curves

Grasshopper

laurent_delrieu (Laurent Delrieu) May 1, 2020, 1:19pm 4

What I don’t understand is that you have some clean curves, so they must comes from some good file. Is it not possible to use more information from this file ?

Did you look at this post ?