BUG: SWP1 (Sweep one rail)

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Permalink Reply by phillip on May 14, 2012 at 3:41am

If you rebuild the rail, its now called "periodic" (just "closed" before) and the result is empty without a runtimemessage.

Attachments:

• sweep1railreb.JPG, 124 KB

Permalink Reply by David Rutten on May 14, 2012 at 5:04am

Hi Phillip,

I suspect the Sweep component creates a surface with multiple interior knots. Basically, it's a very bad way to create Nurbs surfaces with kinks in them. When you add these objects to Rhino it will automatically get repaired.

I wrote a small VB script component that performs this step, and it indeed seems to give you closed Breps in return. I'll see about fixing Sweep for the next release.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Attachments:

• SplitKinkyFaces.gh, 1 KB

Permalink Reply by phillip on May 14, 2012 at 6:25am

Thanks, David. Just noticed that Sweep, not only produced this strange result, but also droped some items on the way. So I think I will rather go for some work around here to be safe.

As i see it, the problem here is also the Curve being periodic.

(If i use subcurves it also keeps all items.)

As far as I rememeber, I had some problems with lofting or revolving periodic curves sometime before.

Thanks.

Best,

Phillip