How to delete intersecting surfaces

Hi!

I've been struggeling with a problem in my grasshopper system for quite a long time now, so now I'm looking for some desperate help!

I can't get my intersecting surfaces delted. What I've done so far is to split my extrusions into two lists to seperate the sides of the extrusions that are intersecting.

I really hope someone can help me.

Attachments:

Capture.PNG, 335 KB
Trying to delete surfaces intersecting.3dm, 24 KB
trying to delete intersections bestween the surfaces.gh, 20 KB

Replies to This Discussion

Permalink Reply by Ethan on September 11, 2015 at 6:41pm

quite the little brain teaser here. you'll need sandbox to use this solution. The algorithm separates edges with neighboring faces from those without. It then finds the edges with neighboring faces and tests the random extrusion of each neighboring face to see which is higher... than only extrudes the shared edge once to the highest length. then it matches edges without neighboring faces to appropriate height. hope it helps. -e

Attachments:

tryingtodeleteintersectionsbestweenthesurfaces _reply.gh, 17 KB

Permalink Reply by Joseph Oster on September 12, 2015 at 12:40am

I skipped 'Split List' and did this instead:

'Brep Join'
'Cap Holes'
flatten input to 'Solid Union'
'DeBrep' to get 'Faces (F)'
filter ('Dispatch') 1,296 faces to separate those with 'Area'=40000 (the front faces?) from the remaining 750 faces, which appear to be mostly edges except for two rows...

Not perfect but perhaps a way forward?

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