unroll - unfold ?

hi,

is there any way to bring the 'unroll surface' command from rhino in grasshopper:

select polysurface -> select curves on polysurface

as shown, i want to unroll some stripes ( red polysurfaces) but i also need the edges between the surfaces of one polysurface

there are some examples here in the forum but nothing really does this job....

any ideas?

thanks

Matthias

Attachments:

unroll - unfold.jpg, 128 KB

Replies to This Discussion

Permalink Reply by Steve Baer on May 26, 2011 at 12:40pm

This is possible in Rhino 5. Here's a python sample. You'll need the latest V5 WIP and the ghpython component (http://www.food4rhino.com/project/ghpython)

Attachments:

unroll_sample.ghx, 95 KB

Permalink Reply by Hrvoje Petrovic on August 23, 2011 at 4:56am

Great script, works fine. Thanks for sharing.

Is it possible to maintain and bake the origin object names with an suffix like "unrolled" or similar (like the Rhino unroll command does)?

Permalink Reply by Eric Jolley on April 1, 2013 at 12:17pm

Hi I'm trying to use your unroll sample with Rhino 5 and Grasshopper 0.9.0014. I get an error msg on the Python component that says "Warning: No script to execute."

Thanks,

Eric

Permalink Reply by Chris Chalmers on June 15, 2013 at 2:17pm

HACKED!

Seems the new ghpython component treats the XML chunks differently - just needed to open the ghx with a text editor and find the python code, then paste it into a new python component in grasshopper. Voila!

Attachments:

unroll_sample_ghV0.9.6.ghx, 87 KB

Permalink Reply by Manuel on June 16, 2013 at 11:24am

Fabtool plugin

Permalink Reply by Florian Frank on June 16, 2013 at 2:21pm

Hallo Matthias,

This is the component from fabtools, that Manuel mentioned:

It's basically the same method as Steve posted with the python example. The only difference is, that it's written in c# and a lot of features are added.

@Hrvoje: You can use the other FabTools components then to add a suffix to the unrolled objects and bake them with that name.

Since FabTools is rather a collection of UserObjects than a plugin you can also just download the Unroll component, Drag it to your GH window and use it without any restart of Rhino/Grasshopper.

Complete Fabtools: http://fabtools.blickfeld7.com/

Unroll Component: http://fabtools.blickfeld7.com/howto/Download/Unroll.ghuser.zip

Cheers

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