Tetragonal trapezohedron

Hello everyone,

I am a very new to this program and I am trying to create a facade with tetragonal trapezohedron elements.

I am trying to make first the shape, then the mesh ( I guess)...

So basically I need the shapes to create a facade.

I attached a few image that might show my idea more clearly.

It would be very very very helpful to me if someone could help!

Thank you,

Inna

Attachments:

dsffd.jpg, 388 KB
5a4900ae3b7d29b1cb6d7583727f38e6.jpg, 53 KB

Replies to This Discussion

Permalink Reply by peter fotiadis on November 16, 2017 at 3:27am

Well ...

... I would suggest (based on your 2nd sketch) this approach.

See notes (especially with regard the pathetic offset thingy).

Used some small C# for optionally transposing the target surface (but that's the 1% of the definition that's carried over 99% by native GH components).

This approach is purely indicative mind

Attachments:

Voronoi_wall_V1.gh, 27 KB

Permalink Reply by Laurent DELRIEU on November 16, 2017 at 11:16am

No need of Grasshopper to make your first element. You can do them with Rhino. If you want them paramatric why not, but it is best that you bring a definition of what you want.

For the second image did you looke at that ?

http://www.grasshopper3d.com/forum/topics/kernel-density-estimation...

Permalink Reply by Joseph Oster on November 16, 2017 at 11:52am

I had to look up " tetragonal trapezohedron". Fascinating shapes! I stumbled through two false starts before coming up with a working model. The number of sides is a parameter.

I was about to make a cluster out of it when I decided to try some test scenarios. Then I struggled and failed (so far) to handle more than one reference plane at a time. :( Data trees... grrr.

Attachments:

tetragonal_2017Nov16a.gh, 22 KB

Permalink Reply by Joseph Oster on November 17, 2017 at 1:21pm

I struggled and failed (so far) to handle more than one reference plane at a time.

Instead of beating my head against the wall any further with GH data trees, I wanted to move on and explore the second part of this puzzle, Voronoi³. The single trapezohedron being generated can be arrayed, oriented or rotated any number of ways to get multiple copies. So I clustered it as is:

I can already see several other ways you might want to define a trapezohedron such as specifying the angle of the "kite" sides or fixed distance between the top and bottom apex points instead of a vertical offset value for the points as I'm doing now.

Not sure how much more I want to play with this but the results can be very interesting.

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