Grasshopper

algorithmic modeling for Rhino

Koch Tetrahedron with hoopsnake

Hi guys,

I have created a definition that produces a fractal of regular tetrahedron based on the Koch division. However I am trying to take the next stape and make it recursive with hoopsnake.

My definition essentially takes a regular tetrahedron, then creates a new tetrahedron base (triangle) by connecting the midpoints of the sides of each surface. Then it displaces the midpoint of this new base by the needed height for a regular tetrahedron alongside the normal vector of this surface.

The problem at the moment is that for one of the 3 intial surfaces I get a vector (0.0,0.0,0.0), which essentially is not a vector. This however does not happen when I do the whole process manually.

The result I am aiming for is essentially this.

I attach the definition icluding both the recursive definition as well as the manual one. If anyone has any input, it would be great.

Cheers,

T

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Replies to This Discussion

Permalink Reply by Daniel González Abalde on January 10, 2014 at 10:03am

I have done differently and does not give problems.

Permalink Reply by Ryan Borker on March 28, 2014 at 4:31pm

Dani can you share how you did this?  Does it only work for triangles or other curves as well?

Permalink Reply by Daniel González Abalde on April 2, 2014 at 8:47am

Permalink Reply by jessica ryder on February 17, 2017 at 9:12am

What expression are you using within the evaluate component?

Permalink Reply by Thanasis Korras on April 2, 2014 at 8:51am

Hi Dani,

somehow I missed this when you posted it. Great work!

Permalink Reply by Laurent DELRIEU on January 21, 2018 at 8:59am

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