here center which in this case is also the origin. I then use surface closest point to place the oriented points onto the sphere. I then evaluate all of those points to get the UV coordinates on the sphere and I remap the u values from 0 to 1 : the rotation limits and then I remap the V from 0 to 1 : 0 to 360. It is kind of a strange approach but it works well. To me the math is little easier to think through rather than trying to solve for angles. I made an angle based solution in the past but it was hard to solve for positive and negative angles. With the current approach you can do that a bit easier based on your remap values and that way you can specify angle limits in relation to the machine you are using. …
n X, Y, Z and rotated 360 degrees until some equilibrium is reached?
Have you tried to simulate this in any simple way? Not so sure that Galapagos is up to the task, sounds more like a job for Kangaroo.
You might want to consider the enhancements to data trees in GH2?
Datatrees in Grasshopper 2.0https://discourse.mcneel.com/t/datatrees-in-grasshopper-2-0/24020
I don't think I can be much more help on this though, it's a little too esoteric for me.…
Added by Joseph Oster at 6:00am on November 15, 2017
added a "hollowing cutter" (circle. extruded, capped) which should be boolean difference from the main ring body.. but using difference results in a union between them instead, so i used a union instead, and lo and behold it resulted in a difference..
I checked by "baking" each component seperately and the booleandiff works properly in rhino..
Any ideas where it went wrong?
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endering of the idea in different stages of bending.
Through attempts and research online I found a complex way of doing it (attached file), but I'm not too sure how it is working and I would think that there would be a simpler way.
Any help is much appreciated!
Cam…
unneeded segmentation during the unroll process.
Manual and examples are updated too.
Enjoy.
Ivy08 Mesh unroll with additional geometry from Andrei Nejur on Vimeo.…
idshell structure out of it. With Lunchbox I easily can create a diagrid structure, but this only works on surfaces. My gh-file can be found in the attachment. So maybe you guys can explain me how to create one surface.
Thanks in advance,
Earnest
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The idea would be to generate a script that would let me do, for instance, a donut but to make a different selection for both the input curve (generator), the director curve and the rotation that the generator is allowed to rotate.
So, for instance, the donut shape would be circle (input), circle (director) and then 360 degrees for the angle of rotation. Obviously one has to also have likely two pickpoints for where they are "joined". Then the next step would be to allow for an angle of "tilt" (front to back) as it completes the rotation/start to finish.
Maybe ping me off list and we can take it further?
Cheers and thanks.…
stack using the "rad" to convert angles to radians ...and setting the number slider to 0min and 360 degrees or whatever you want.but do not understand your question
can generate the curve that the tip of the triangle describes which is also the midpoint of the chord you can then use the tangent vector to that curve at the various points to give you the orientation of the fixed chord at each position. This would then give you the points on the one curve or two curves that the endpoints of the chord describe. Symmetry conditions suggest to me that it might be one curve that is generated but I'm guessing. It's quite easy to generate the point set of the curve that the tip of the triangle describes by using a range component in place of the 360 degree slider but the way the definition is set up right now that also duplicates all of the intervening geometry which is processor intensive. That's what stopped me last night. I didn't want to crash my computer in pursuing that direction (not that I haven't done that before though). I'll look at it some more today.
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Added by Chris Tietjen at 5:33am on November 8, 2012
als still can´t find the rind functions for my spiderweb!
A made a short Explication in Rhino..
At first ein need a curve towards Nord (modified by the angle y = Gamma)
After that i need the Parameter (Number of radii)
The angle between the radii is (360° / Number of radii = @)
Additionally the angle @ + e,f,g,h ( a number of deviation)
I really dont wanna waste your time, but i would be so grateful if you can help me with this functions?!
I know exactly what I want, but unfortunaly I dont know and can´t find the right functions to construct this in Grasshopper!…