Is there any way to fix “broken” faces like this usign Ruby API: [image%20(1)] example1 (1).skp (123.9 KB) it’s one face instead of two I detect such faces using a simple snippet, but I’m not sure is it always correct: def valid?(face) !face.loops.any? do |loop| loop.edges.flat_map(&:ve…

@alexey Not sure why SU is not seeing these as two faces but how about trying this code. I have tried it on your sample models and it seems to fix the problem model = Sketchup.active_model ents = model.entities faces = ents.grep(Sketchup::Face) faces.each {|f| verts = f.vertices verts.each{|…

I these are known as “bowtie” faces. I tried the following without success. Sketchup.send_action(21124) # Run validity check tool #=> true Sketchup.send_action('fixNonPlanarFaces:') #=> true Both report no problems found. No change in the “face”. REF: Sketchup::Model # fix_errors · Issue #291…

this code is a bit inelegant, but it works. model = Sketchup.active_model ents = model.active_entities ents.select{|e| e.is_a?(Sketchup::Face)}.each{|e| e.erase!} ents.select{|e| e.is_a?(Sketchup::Edge)}.each{|e| e.find_faces}

I haven’t tried this - I’m away from a suitable PC ATM… It’s a clunky idea, but it might work ? Once you have the problem_vertex and its position, collect the vertices around the loop [you have the face’s loop and its vertices are always ordered]. Break your collection when the next vertex.positi…

You solution can generate extra faces in some cases. Example: [image]

Yes, I agree that the brute force method has side effects. Since I don’t know the larger context of what you are attempting, I must leave it up to you to decide of this approach is usable or if TIG’s approach is a better fit. Please let us know the solution when you find it!

There is a draft version of fix method: def fix(face) raise "don't support" if face.loops.count > 1 @start_eu = nil bad_vrtx = nil face.loops.first.edgeuses.each do |eu| vrtx = (eu.reversed? ? eu.edge.vertices.reverse : eu.edge.vertices).last next unless (vrtx.edges & face.edges).c…

But it fails in this case: [image] example2.skp (122.0 KB)

Have you tried with entities.intersect_with? If that fails, create a temp group with edges perpendicular from each vertex of the face. Then transform the end vertex back to the start so you have a set of zero length vertices. Then explode the temp group.

Have you tried with entities.intersect_with? It does not work Then transform the end vertex back to the start so you have a set of zero length vertices. Sorry, but how to do it?

Thank you. Looks like it works, but I need time for testing

Detect & Fix "broken" faces

Developers Ruby API

ChrisDizon August 7, 2019, 1:18pm 19

I am now hoping this logic can help with Can't intersect faces

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Detect & Fix "broken" faces

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