Grasshopper

generative modeling for Rhino

Wrapping a spiral around an organic form

Hi all...

I am trying to wrap a spiral form around an organic shape tower, so as  to get the effect in the attached image.

I generated the spiral by using a "series" component to generate points, then using sin and cos to spiral them, and connected them with an interpolated curve, then piped the curve to get the spiral form. So I got my spiral, and got my organic twisted tower form. To wrap the spiral around it, I used Srf Morph component, but got an awckward result as GH considered the whole spiral form as one element, and wrapped it around the form!. What I want is to get the spiral to follow the U Insocurves of the tower surface.

Any idea how to do it better?

Many thanks

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Permalink Reply by Dedackelzucht on December 28, 2011 at 9:22am

ok, I do not know if I understand you right? But here is my propose!

Best Regards

DeDackel

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Permalink Reply by Zayad Motlib on December 28, 2011 at 11:03am

Thank you very Much DeDackel. That's what I needed to achieve.

Permalink Reply by spiral on December 29, 2011 at 8:00am

problem opening file, please personal email message. I'd dreamed of having a common file such a spiral dome for surfaces of revolution http://www.grasshopper3d.com/photo/spiral-dome?xg_source=activity

Best Regards

Permalink Reply by Zayad Motlib on December 30, 2011 at 5:34am

Hi DeDackel;

Just couple of questions

1- Is it possible to randomize their distribution, or distances between the members?

2- Can we apply the definition to a polysurface?

Much thanks

Zayad

Permalink Reply by Dedackelzucht on December 30, 2011 at 7:56am

For 1- I do have an anwser for 2- puhhhhh thats difficult (in my mind) :-)

Best Regards

DeDackel

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Permalink Reply by Zayad Motlib on December 30, 2011 at 1:35pm

Awesome. Thank you.

Permalink Reply by Zayad Motlib on January 2, 2012 at 9:24am

Hi DeDackel;

Happy New Year...

I made the attached spiral definition then tried to wrap the spiral around your form, so that I can still control the number of circles and distances between them while they follow the surface shape.

Any idea how to do that?

Thanks

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Permalink Reply by Dedackelzucht on January 2, 2012 at 9:48am
Hey, happy new year!

I am currently without rhino and this will not change
In the next 2 weeks. So i hope you this time. Or ask some else,
i am sure here is someone ready to help you. 
Best Regards
DeDackel
Permalink Reply by Zayad Motlib on January 2, 2012 at 10:20am

No problem DeDackel. Enjoy your holiday.

Anyone there to help me with this definition please?, I think I need to match the spiral domain with the organic form domain, so that the spiral does not go beyond the surface boundaries of the organic form, but not sure how to do that ...

Permalink Reply by Systemiq on January 2, 2012 at 2:49pm

Is this helpful?

Permalink Reply by Zayad Motlib on January 3, 2012 at 6:58am

Hi Systemig;

That was very helpful. Thank you.

Permalink Reply by Zayad Motlib on January 8, 2012 at 12:50pm

Hi DeDAckel;

Can I use the center of the diagrid on this organic form to morph an object on it. I am trying to get the center of an object to morph into the center of the diagrid, while the boundary of each diagrid cell to be the bounding box for the morphed object. 

I tried to rotate the U V of the surface to try to get a rotated SurfaceBox but with no luck...

Is that possible at all?

Thanks

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