Grasshopper

algorithmic modeling for Rhino

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Comment by Gieljan Vantyghem on November 13, 2012 at 4:30am

Hi Nick, why would you want to have lines instead of curves?

Comment by M NICK on November 12, 2012 at 8:23pm

Great job Gieljan,

I have a question, How can I have lines instead of curves from Geodesic component?

Thanks a lot

Comment by djordje on November 12, 2012 at 7:12pm

Thank you for all the help.
Sorry for disturbance.
Hope to see some more of your great projects.
Begroeting.

Comment by Gieljan Vantyghem on November 12, 2012 at 7:04pm

hmmm.. I have no idea because I don't understand how the function 'geodesic' works. I just use it :) but it seems that the more the surface is curved, the more variation there is. But both are made with the same script.. Maybe you should ask the codewriter/programmer ;)

Comment by djordje on November 12, 2012 at 6:39pm

Thank you for the reply Gieljan,
But on your preview below, the gridshell version has a gradual distances between some geodesic curves. Distances are shrinking and the increasing. And in example from your last reply, the distances between all geodesic curves are the same?!

Comment by Gieljan Vantyghem on November 12, 2012 at 6:32pm

That was more complex, it was done in grasshopper, using the command: geodesic (under curve tab) It creates a geodesic line on the surface. You need to do a few things first..  1:  make a surface from the joint brep (with sections and then loft; you can't use geodesic with brep). 2: use the start and end points from the grid projected curves (project on srf). 

Comment by djordje on November 12, 2012 at 5:05pm

Very nice!
And that fourth example - gridshell, how did you do it?

Comment by Gieljan Vantyghem on November 12, 2012 at 4:59pm

Good! Yes I think I did joint them. But you can also bring them in, under one 'brep param' in grasshopper without joining them. It doens't matter I think. Unless you have further plans to modify these lines.. :)  I also tried some other structures: see below

Comment by djordje on November 12, 2012 at 4:45pm

Understood, thank you.
You later used the "Project (project curve onto brep)" to project the lines onto this blended surfaces?

Did you joint the original ellipsoid parts with the blended connecting surfaces before that (before projecting curves onto them)?

Comment by Gieljan Vantyghem on November 12, 2012 at 4:20pm

something like this I think. if you have further questions, maybe better by email: gieljan_vantyghem@hotmail.com

good luck

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