Grasshopper

algorithmic modeling for Rhino

How to orient geometry to plane?

Hello, this is my problem:

I have divided a cube into many 3D voronoi pieces.

I moved the pieces to random locations in a rectangle - I want to achieve a "scattered" look, like the cube exploded.

But the pieces are just moved, so some of them stand on a tip.

Is it possible to choose any surface of each piece and orient (attach) it to the ground plane?

Thanks, Jack

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Replies to This Discussion

Permalink Reply by David Rutten on April 26, 2013 at 2:08am

Interesting problem. I found a solution but the final scattering is sometimes on top of the ground, sometimes underneath. 

--

David Rutten

david@mcneel.com

Poprad, Slovakia

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Permalink Reply by Jonathan Nelson on April 26, 2013 at 5:08am

adding onto david's solution, you can test the centroid for -z coord and rotate.  not the most elegant, but it works.

Permalink Reply by Jack Gelardi on April 29, 2013 at 7:01am

Thanks David and Jonathan, that was what I was looking for.

I combined both solutions - orient and then mirror the pieces with centroid's negative z.

Jack

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