Grasshopper

algorithmic modeling for Rhino

hey there,

i'm just in the learning process of grasshopper, so my apologies if my questions are a bit

I am remodelling the gouangrhou opera house for one of my courses in uni.

At the moment i'm trying to build the steel structure as shown in the pictrue below.


I have managed to triangulate the whole building, but do have a lot of problems with the offset functions.
At the moment i just have triangles with no thicknes. I am trying to make them look like in the above picture, but somehow i can't make the offset work how i want it to work.

do you have any suggestions of how to proceed?

thanks a lot in advance! Simon
 

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Replies to This Discussion

Hi Simon, 

Some trick: find the centroid of your floor building, use it to scale the skin, then loft to the original curve. Repeat it to achieve thickness, with centroid in your triangle surfaces.

it's pretty hard to see your script, but if you find the normals of your triangles you can offset relative to them.  scaling to the centroid of your building would only work if your surface is a dome with the same centroid.  

if you create a mesh you can try weaverbird plugin with Frame component and thicken mesh component.

Thank you! I'm trying weaverbird at the moment. I've got some problems with the thicken mesh component. It somehow extrudes in two different directions. And I can't bake... 
I still have to learn a lot about grasshopper, sorry about that. :)

Thanks for your help!

Cheers, Simon


 

Mmm put a mesh component (black/gray component) and see if you can bake it...
Also use the lastest weaverbird version (i remember a old cant bake / invalid mesh bug)

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