Grasshopper

algorithmic modeling for Rhino

bouncing vectors - non intersecting vectors

It's my first post to this excellent forum. I'd like to thank all of you for your oustanding effort and the resulting help to me.

My question: I want to separate vectors out of "All vectors" which intersect (2, 3, 4, 5, 6) with the line and the ones which do not intersect (0, 1, 7). Intersect is done! But how to get the non intersecting vectors  (0, 1, 7)?

So I e. g. could deselect vectors 2, 3, 4, 5, 6 so I would display/use only vectors 0, 1, 7 and the bounced ones.

Appreciate your help!

Rudi

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Permalink Reply by David Rutten on September 18, 2013 at 8:23am

You count the number of intersections. If the number is zero, there were no intersections. Convert your count to booleans (0=false, everythingelse=true) and use it to cull the lines.

--

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by Rudi on September 18, 2013 at 10:27am

Thanks a lot for your fast help (as always)!!! List, sequence and tree elements are still difficult to use for me. Anyhow, I learned something again.

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