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[cgal-discuss] 3D Alpha shape - detecting "hollows"


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  • From: Wiktua <>
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  • Subject: [cgal-discuss] 3D Alpha shape - detecting "hollows"
  • Date: Mon, 18 Jan 2021 13:37:28 -0600 (CST)
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Hi, I've started using CGAL 3d alpha shapes recently to compute a concave
hull of a protein. I'm struggling now to set alpha to a value where the
protein's tunnels are not "scooped" out. I've went through the documentation
but haven't found an answer to my question, perhaps I misunderstood some of
the information. I'm attaching images for clarification.
<http://cgal-discuss.949826.n4.nabble.com/file/t376261/Alpha_shape_comp.jpg>

I understand that in each case I have one solid component but is there a way
to detect such behaviour? What I'd like to do in this case is find the
minimal alpha value between 40 and 80 where I get an alpha shape without any
hollows/burried cavieties inside.




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Sent from: http://cgal-discuss.949826.n4.nabble.com/



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