Triangular Truss

Hello all,

New here and just discovering the program. Especially managing the data streams seems quite difficult.

I managed to create a triangular truss but I'm wondering: Can it be done easier, do I make redundant steps or is this just the way to parametric model a triangular truss.

Because I've just copied a step two times to create 3 sides of the truss. I can imagine there is a way to do this in one step.

Let me know! Because a would love to know how to model efficient.

Attachments:

TriangularBeam.gh, 18 KB
TriangularTruss.JPG, 83 KB

Replies to This Discussion

Permalink Reply by David Rutten on March 4, 2016 at 1:18am

I couldn't simplify your file a lot, it does seem like you might have to repeat the zig-zag logic three times. I'm sure there's some arcane incantation you can use, but I can't think of it.

Attachments:

TriangularBeam.gh, 15 KB

Permalink Reply by MarcGrasshopper on March 5, 2016 at 2:43am

Thanks David, I was wondering: isn't it weird that I use a tree explode? My first try started with a polygon on the endpoints, when changing from three to four (square beam) I had to copy (a part of) the definition (not very flexible) is there a way to work around this problem?

Or is it very hard and preferable to specify (as I did) and make a model which only creates a triangle?

Permalink Reply by Pieter Segeren on March 5, 2016 at 3:57am

H(o)i Marc,
here's my two cents. The idea is that you create only one 'zigzag' and map that to the surfaces that make the sides of the extruded polygon.

Attachments:

Beam_PSG.gh, 32 KB

Permalink Reply by David Rutten on March 5, 2016 at 4:02am

Ah of course! I rejected using a rotation transform since the triangle might have three different sides, but a rectangle mapping is indeed the way to go.

Permalink Reply by MarcGrasshopper on March 5, 2016 at 4:05am

Thanks Pieter, really interesting approach, learned a lot!

It is so helpfull to see you both (David and Pieter) creating the same structure using other components in grasshopper. Now I know a few more components and how to apply them in my 'workflow'.

Permalink Reply by Kim hauer on March 5, 2016 at 12:36pm

Thanks Pieter! ... I like appreciate your very thoughtful Two Cents input, :)

BIG p.s. It drives me crazy; why reply's don't end up where they are supposed to. Why do reply's get posted at the end of the thread.... this makes NO SENSE! Can't this be fixed, NO other Forum I belong to does this :(

Permalink Reply by Kim hauer on March 5, 2016 at 2:10pm

Yikes! my mistake! , its the subtle indenting that's visually confusing. Is there a pill for that?

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