Create Single Surface for each Closed Curve

Hello all,

I am trying to create a surface from a closed curve. The height and scale of the curves that are lofted to make the surface are based on the area. The problem I am having is that when i flatten the list I lose the data and then have to resort it through using a domain of the list to rebuild list and separate the curves. I'm sure there is a better way to do this and welcome any suggestions or feeback.

Thanks

-Matt

Attachments:

Surface_from_Curve.3dm, 174 KB
Surface_from_Curve.ghx, 421 KB

Replies to This Discussion

Permalink Reply by Pieter Segeren on April 5, 2011 at 4:31pm

You could loft the 3 curves you have early on in your definition, the original ones, and the two scaled and moved (+z & -z) ones. (And remove the explode, because you started out with these curves;)

Permalink Reply by Matt on April 6, 2011 at 6:28am

I tried that but the list don't remain consistent so that the curves match and the center points associated with each closed curve are not as well. Which results in scaling from random points and lofting to unassociated curves.

Permalink Reply by Pieter Segeren on April 6, 2011 at 7:17am

Try this

Attachments:

Matt Surface_from_Curve_.ghx, 150 KB

Permalink Reply by Matt on April 6, 2011 at 7:38am

Hey Pieter,

That works. Thanks. I guess I have been staring at this thing too long.

Thanks for all the replies.

Permalink Reply by Dedackelzucht on April 6, 2011 at 7:06am

can you post a rhino 4 version 3dm?

Permalink Reply by Danny Boyes on April 6, 2011 at 7:19am

How about something like this:

To keep the order of the curves correct for the loft you could include the original curve but don't scale it and don't move it.

Attachments:

SingleSrfs.png, 110 KB

Permalink Reply by Danny Boyes on April 6, 2011 at 7:22am

Wrong File Uploaded

Attachments:

singlesrfs.ghx, 144 KB

Permalink Reply by Matt on April 6, 2011 at 8:27am

Hey Danny,

This is a nice solution, also. Thanks

-Matt

Permalink Reply by Sebastian L. on May 4, 2012 at 9:13am

Hey Danny,

I have a problem regarding to your definition. What do I have to do, that those lofted curves work on a shaped surface, not a planar one, means that it works to the surface normals?! I guess it is a list problem but I can not find the error. it is my first real try working with this list components. I am not sure if I placed them all in the right way, There might be some other errors or not necessary components, sry ... It lofts only the inner and outer curve but not the one at the origin. In the attached def you can see my approach for it. Thanks for any help!