Loft not working

Hi everyone,

Apologies for another question about loft, but I've looked through pages of results and haven't been able to find a solution.

I'm just trying to create a clean loft between a set of 20 curves, but I'm getting strange distortions in the final surface. I think the problem is related to my input curves, as they are polylines. I've tried interpolating a new curve, and creating a NURBS curve. This has improved the result, and dramatically decreased the computation time from 43 seconds to a matter of milliseconds, although the surface is still not right. Perhaps the issue is the shape of the input curves?

Any help will be greatly appreciated.

Thank you.

Attachments:

AIR DEF 01.3dm, 1.7 MB
AIR DEF 01.gh, 7 KB

Replies to This Discussion

Permalink Reply by Andy Watts on September 22, 2016 at 3:02am

Hi Zeb,

The key thing is to make sure that the seams of your lines match up, so that it creates as smooth a loft as possible. Then you can carry on with your division and curve rebuilding operations. See attached.

Andy

Attachments:

AIRDEF01_edit.gh, 11 KB

Permalink Reply by Zeb Kitchell on September 22, 2016 at 5:58pm

Thanks Andy, that has worked well. Sorry to keep bothering you, but I've also been having trouble with the offset component lately. Could you have a look at the definition again? I've inputted adjusted crvs, and now the offset is failing (one little crv segment is offsetting way to far).

Attachments:

AIR DEF 01.3dm, 1.6 MB
AIR DEF 01.gh, 13 KB

Permalink Reply by Andy Watts on September 23, 2016 at 2:56am

Hi Zeb,

It seems that you have a number of near coincidental control points on that curve. If you remove the extra points and rebuild then it works fine - see the attached definition.

Andy

Attachments: