Grasshopper

algorithmic modeling for Rhino

Get only outermost points in a point cloud

Hoping someone can point me in the right direction for this. I have a point cloud with hundreds of points and i want only to identify the outermost points so I can create a shell around this cloud. What would be a starting point for me to start getting some of this working? Here's what I've got so far.

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Permalink Reply by David Rutten on November 9, 2016 at 9:58am

If it's 2D you can use the standard Convex Hull component. If it's 3D then you're going to have to shop around for a volumetric convex hull component.

Permalink Reply by Michael Pryor on November 9, 2016 at 10:32am

"If it's 3D then you're going to have to shop around for a volumetric convex hull component"

Starling has one: http://www.grasshopper3d.com/group/starling

Permalink Reply by Daniel Piker on November 9, 2016 at 11:04am

Dale Fugier's plugin here has a great convex hull function: http://www.food4rhino.com/app/waterman-polyhedra

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