Grasshopper

algorithmic modeling for Rhino

Listing triangle side lengths

I am trying to list the side lengths of each of the triangles forming a mesh.

Thanks to tools I found on this forum I went as far as turning all triangular faces into polylines. However, whilst it is easy to list the total lengths of these polylines, I don't know how to break these down into the 3 side lengths (I could obviously explode the polylines but then I probably would lose track of which triangle each line belongs to).

Ideally I would like to generate a list in the form:

(polyline #,a,b,c)

where a, b, c are the 3 side lengths of each triangle.

 

Can anyone help?

Views: 330

Replies to This Discussion

Permalink Reply by David Rutten on May 15, 2015 at 12:06am
When you explode a list of polylines, the result will be a tree with one branch per polyline containing three lines. So you won't lose track of which line belongs to which triangle.
Permalink Reply by David Stasiuk on May 15, 2015 at 12:16am

Exploding will work, because GH will produce a data tree as a result that maintains each triangle's exploded segments in a discrete branch.

Permalink Reply by Eric Sturel on May 15, 2015 at 4:08am

Many thanks guys that was really helpful.

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