BUG: Incorrect curve normals

Basically what I am doing is very simple. I have a square, I am moving it up in equal intervals. then I have a triangle, I rotate the triangle by 90 degrees in intervals divided by the floors I have then trim each floor, The problem I keep having is when I trim the surfaces the loft the new slab edges I always get a few curves that normals have flipped, I don't understand why since they are all essentially the same slab repeated upward. Can someone look into this? I can post a definition later, right now its all cluttered with other stuff. Thanks.

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Permalink Reply by David Rutten on May 7, 2012 at 11:47pm

Hi Michael,

but all the slabs are different aren't they. They all come out of their own trim operation. Rhino's SDK methods unfortunately don't care much for consistency in this way, they are more often optimized for speed. This will often result in cases like this where the seam or even the direction suddenly flips.

Additional code is needed to 'repair' these curves, unfortunately I don't have code like this.

David Rutten

david@mcneel.com

Poprad, Slovakia

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