hi guys,

i have a set of parallel planes on top of which are curve sets that i wish to combine into one closed curve on each plane. "region union" would be my weapon of choice here. unfortunately, it doesn't do what i want. i shrinked the problem into a lean definition. pls find attached. solid union the brep before sectioning is not an option for performance reasons.
feeding all sections in the "region union" will result in one region that encloses all curves on all plane.

----------> OK, while explaining i found a partial solution. all curve on one plane have to be in one path. will work then.

which brings me to the next problem:
i am sectioning a couple of boxes in e.g 3 levels with 3 plane. the "section brep-plane" component will not maintain the path structure. or is it me?

could it be done like this?
brep(pathONE)tested against plane(pathONE)
->output result(pathONE)
...
resulting in 3 paths.

instead i get one path for each found intersection which renders the result useless for the problem described above.

any help highly appreciated,
best,
frank