Grasshopper

algorithmic modeling for Rhino

Inverse Convex Hull

Hi,

I have a Problem finding the "Inverse Convex Hull" in a Point-Cloud!

... tried to find solutions round the web and GH-Forum but coudn't find.

 

Theoretical "the inside, rather than the outside, of a point distribution is needed, points are transformed to have the same angle but the inverse distance from the center. Then the convex hull of this is taken to find which are the appropriate boundary points." (... found in 3.4 Inverse Convex Hull: https://www.ipam.ucla.edu/publications/opws2/opws2_9055.pdf)

 

Please help!

Best, Theo

Views: 1454

Replies to This Discussion

Permalink Reply by David Rutten on April 12, 2012 at 12:52pm

I hope you can open this file, it doesn't work well when the start point is 'outside' the cloud.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

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Permalink Reply by Theodor Wender on April 12, 2012 at 1:59pm

Many Thanks David!!

... works very well :-)

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