Grasshopper

algorithmic modeling for Rhino

Understanding the limits of and alternatives to Patch Surface

Dear community,

for funicular form-found meshes which are particularly "pointy" (span:height = 1:1) I am seemingly hitting the limits of the patch surface function. The attached file has two point clouds, one which can be patched and another slightly taller shape which no longer can be patched.

Am I missing a trick on the patch parameters? What are the limits of the patch function and how may I accommodate these for my problem?

Or perhaps there is an alternative approach to getting a smooth and accurate surface from such a point cloud? Given that the point cloud is from a form-found triangular mesh (from Kangaroo) there is no immediate U/V logic in the points. I was hoping to avoid having to generate lines and sweep functions.

Any help or ideas would, as ever, be greatly appreciated!

Greg

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Permalink Reply by Anders Holden Deleuran on November 17, 2017 at 5:30am

Hi Greg, inspecting the RhinoCommon overload that exposes all controls might be a good starting point. Attached a quick implementation that might help with further troubleshooting (although I haven't a clue what all the input params do):

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Permalink Reply by Gregory Quinn on November 17, 2017 at 6:00am

Athankings!

Edit: reducing the number of points seems to help btw...

Permalink Reply by Gregory Quinn on November 17, 2017 at 6:16am

Yes, so if anyone wanted to know...

reducing the number of points seems to help. See attached ... :)

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Permalink Reply by Gregory Quinn on November 17, 2017 at 6:17am

Less is more!

Permalink Reply by Anders Holden Deleuran on November 17, 2017 at 6:32am

Hehe, it really and truly is ;)

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