why doesnt the loft command work in the same way in Rhino and GH

Replies to This Discussion

Permalink Reply by David Rutten on September 6, 2009 at 3:11pm

What are your loft settings like?

Permalink Reply by voronoiii on September 6, 2009 at 4:11pm

in rhino its just the "uniform",.. its the same in GH as well,..
did i give u the rite answer,.? im a begginner, please elaborate the question, if i was wrong,..

Permalink Reply by Vicente Soler on September 6, 2009 at 4:24pm

Curves have a direction. Ideally, the direction of all the curves that are going to be lofted must be the same, you probably have some curves with an inverted direction. To correct this select them in rhino and type 'Dir', then flip if necessary. The rhino loft guesses the correct direction, i think grasshopper doesen't.

Permalink Reply by voronoiii on September 6, 2009 at 4:44pm

ya exactly,.. i tried the DIR command,.. all of those crossing have been corrected, but one is not being corrected no matter if i rotate it or use DIR,..
Do u have any more suggestions,..?
Thanks

Permalink Reply by Aðalsteinn Már Ólafsson on June 14, 2010 at 9:41am

Hi, I know I'm like half a year later but since I had a similar problem I list my non so elaborate fix for others who might be surfing these forums for information.

Firstly I have the curves, I divide them with integer 1 and put kinks to True. What we have now is division points on the curve (it looks like a multiple joined curve in your file). Next to get each individual segment I put in shatter, connect the curve and the divide points into the shatter, then I have the segments. I list the segments through list items and loft through each part individually and flip the curve if nessecary.

Attachments:

• Loft workaround.jpg, 231 KB

Permalink Reply by Danny Boyes on June 14, 2010 at 10:25am

Hi Aðalsteinn,

Have you tried using the guide curve function of the Flip Component. Select your first curve as the guide and the others should either flip or not as needed.

Permalink Reply by Aðalsteinn Már Ólafsson on June 21, 2010 at 6:22am

Not tested it as so, but I've been flipping em around and since my curve is composed of 6 circular segments it seems that the segments are mismatched and thus individual control of each segment needed. Would the segments align when I have a joined curve controlling them?