Thank you. That solved the last Problem with the intersect.

you guys have been very helpful@TIG,sdmitch Thanks a thousand

Thank you! This works indeed. I just had to remove the one ".inverse".

    intersection_edges = entities.intersect_with(true, tr, instance_bulkhead.definition.entities, instance_bulkhead.transformation, true, [instance_body, instance_bulkhead])

The one remaining problem is now that there are usually more than two entities and this intersects all of them with the instance_body including the instance_body itself. Do you have a quick tip how to restrict the intersect to the two objects instance_body and instance_bulkhead?

Thank you very much for your help, it's much appreciated

@tig said:

First off please don't use $ variables - one day they'll clash with other's code and cause disasters... use @ ones if your code spans 'def' methods...
Also calling your component/instance 'model' is just confusing as that's normally used for 'the model' itself ! And 'plane' refers to something that a face has...
Make references to the two 'containers' instead of their entities !
Say @xmodel and @xplane - we can deal with the entities later...
Try messing around with the .inverse methods if the intersection id not where it's required...

Thanks for the quick reply.
I replaces the global variables and renamed the instances.

model = Sketchup.active_model
entities = model.entities

instance_body=0
instance_bulkhead=0

entities.each do |s|
 if s.definition.name=="Model"
  instance_body=s;
 end
 if s.definition.name=="BPC"
  instance_bulkhead=s
 end
end

intersection_edges = Sketchup.active_model.active_entities.intersect_with(true, instance_bulkhead.transformation.inverse , instance_bulkhead.definition.entities, instance_bulkhead.transformation.inverse , true, [instance_body, instance_bulkhead])

I tried every possible combination of inverse and non-inverse but there's always strange stuff happening. It does only work if both instances are not transformed at all so I guess it must have something to do with the transforms.

Thank you very much

The lines are the intersection_edges

Hi Forum,
I'm going crazy trying to intersect two component instances.

I want to intersect a instance of the component Model and a instance of the component Plane and store the intersecting edges in intersection_edges in the Plane Component. I fail miserably probably because I don't really understand how the transformations work on instances. Any Help would be really great, I already spend more than 2 hours trying to get this to work.

entities.each do |s|
 if s.definition.name=="Model"
  $model_tr = s.transformation
  $entities_model=s.definition.entities
 end
 if s.definition.name=="Plane"
  $plane_tr = s.transformation
  $entities_plane=s.definition.entities
 end
end

intersection_edges = $entities_plane.intersect_with(false,$model_tr.inverse ,$entities_plane,$plane_tr,false,$entities_model.collect)

Thank you very much!