Grasshopper

algorithmic modeling for Rhino

I'm having trouble figuring out how to trim some lines with another curve. Based on the same question asked earlier (http://www.grasshopper3d.com/forum/topics/trim-curves-in-grasshopper) I have found the intersection of the lines to shatter them and am trying to cull the points that are outside of a boundary (testing the points by "Containment"), but it's not really working (maybe I'm not using cull pattern correctly?). Thoughts?

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You might try creating a surface with one of the curves and using surface intersect with curve seeing as you need to define somehow which bits to contain at some point. Worked for me much better than the trim curves topic (1 component vs lots) and produced much more reliable results.

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