Question about a perforated cylinder using surface split

Dear GH community,

I've made a definition which maps a bunch of circles in a diagrid to a cylindrical surface (to create a perforated tube). First I generate a planar surface with the diagrid (pink section), I cull the grid nodes from the surface's edges (purple section) and then I map the resulting curves on the cylinder (green section).

The definition is a “succes” but I have a performance issue with the script: when I increase the number of circles (a 1000 for example) and I enable the “surface split” node GH freezes and crashes.

I've noticed my computer has performance issues with GH in general when the number of entities/computations increase (although my definitions are very basic stuff). Because I'm new to GH I don't know if this has something to do with my approach to the definitions or due to a computer hardware bottleneck. Could you guys take a quick look at the definition and tell me if I have to take another approach or if I have to update my computer hardware. Many thanks.

System specs:

Intel i5-3337U 1.8GHz (two cores, to my understanding the number of cores is irrelevant)

8GB RAM istalled (about 5 GB free when running GH)

Intel HD Grahpics 4000

Windows 8.1 64-bit

Rhino 5 64-bit

Attachments:

perf-cylinder.gh, 19 KB
perf-cylinder.jpg, 198 KB

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on October 29, 2015 at 1:26pm

Hi.

Leave "Surface split" alone(disabled). This approach will take less time.

Attachments:

perfcylinder_re.gh, 15 KB

Permalink Reply by Frank Jaeger on October 29, 2015 at 1:49pm

Thank you very much for your time.

My computer doesn't (really) crash anymore!. It's still super laggy and it takes alot of time but it's a step forward. Guessing by your reaction this isn't really hardware issue but simply a computation that takes alot of time? or do I really need to update my hardware if I want to continue using Grashopper more?

Permalink Reply by Hyungsoo Kim on October 29, 2015 at 2:23pm

If in case rendering is your final goal, I definitely recommand opacity mapping with your any kind of render engine unless you have a monster.

Nurbs surf with more than 1,000 cutting holes would be very extraordinary to any other pc.

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