sweep question

Hi yall
Is there a way to use the sweep 2 rail command in GH, to keep one of the rails constant and to keep the section length constant?
thanks for the help and for this beautiful program...

Replies to This Discussion

Permalink Reply by Peter Allen on August 21, 2009 at 6:02am

This is quite and elegant solution and really versatile. I'm made a small tweak to it to twist the louvres from the endpoint. Really nice though, well done.

Attachments:

image louvre twist.ghx, 177 KB

Permalink Reply by Rob Rodriguez on November 25, 2009 at 6:22pm

hi guys, I was wondering about some potential applications of your definition (beautiful work!), say by applying it to any given surface, so I made a few tweeks and applied it to a curved surface instead of a plane and I manage to make it work... almost! there is an issue with the final loft as it creates a single continuos loft instead of various separated ones.
Any ideas of how this could be solved??
thanks for any help.

Attachments:

Permalink Reply by Rob Rodriguez on November 25, 2009 at 6:23pm

image of the continuos loft

Attachments:

loft2.jpg, 202 KB

Permalink Reply by Vicente Soler on November 25, 2009 at 10:18pm

You didn't reproduce the definition properly. There's a graft component missing, although in the latest GH release the new divide surface component will place each row in a different path for you, so it's not needed (but you have to replace the component). Also, you are connecting the points directly to the image, use the uv output instead. Since you are using a curved surface maybe you would prefer to use the normal of the surface instead of the z vector for the line orientation and rotation.

Permalink Reply by Rob Rodriguez on November 26, 2009 at 3:11am

Vicente, thanks for the quick response, I'll have a look at using the normal of the surface instead and the uv output, I played around with the graft but it wasn't taking the input from the surface, it worked fine with the series you used originally though, however the rotation of fins is working fine what is not working is the loft, it seems to recognize all the lines as part of the same loft instead of breaking it down to individual rows. Is there a way to separate each row and loft it individually?

Permalink Reply by Vicente Soler on November 26, 2009 at 3:37am

To end up with separate lofted surfaces, the list of points has to be separated into different paths (one path per row of points). To do this you need the graft component or if you download the latest GH release, if you use the new divide surface component a path per row is already created for you.