Grasshopper

algorithmic modeling for Rhino

Sample of a simple 3D caternaty arch

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Comment by Wieland Schmidt on January 28, 2010 at 4:03am
Thanks Guilio that is very helpful, I missed this discussion.

Matteo - Yes I am very interested in form-finding, tensile and light weight structures. I am looking for ways how to generate these structure with grasshopper, if you have any ideas or links for this topic I would be very interested.

Wieland
Comment by Giulio Piacentino on January 25, 2010 at 2:16am
Hi Wieland,
if you are looking for a definition you might find one here:
http://www.grasshopper3d.com/forum/topics/help-with-equation-in-fun...
Comment by Matteo Lo Prete on January 24, 2010 at 8:58am
Hi Wieland, thank you for the comment.
Yes, this curve is correct (differs from parabola, that just approximates catenary arch). For this study I combined the correct formula with its inverse, in order to control the height of the arch. It's not a question of physical mass-spring systems like this (http://www.matteoloprete.com/en/2009/01/research-pproject-phase-i-c...).
Just maths.
If you need of more detailed information I'll happy to discuss about this definition with you.

I've taken a look to your personal page and seen many comments on mass-spring, form-finding and so on. Have you got a particular interest in it?

Matteo
Comment by Wieland Schmidt on January 24, 2010 at 8:03am
Hi Matteo, nice work. Is this a mathematically correct catenary curve? How did you do this? Wieland

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