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Re: [cgal-discuss] How To Remove Spikes From 2.5D Mesh?


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  • From: "Sebastien Loriot (GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] How To Remove Spikes From 2.5D Mesh?
  • Date: Mon, 27 Mar 2017 09:57:20 +0200
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  • Organization: GeometryFactory
On 03/26/2017 01:23 AM, Piero Toffanin wrote:
Hello,

I apologize if this is not the right place to ask this question.

I'm using CGAL to compute a constrained delaunay triangulation over the
XY plane for the purpose of turning a point cloud into a 2.5D mesh. Here
are two screenshots to illustrate:

Point cloud:
https://cloud.githubusercontent.com/assets/1951843/24327134/0bc19458-1197-11e7-96ae-4df1c1bd99a1.png


2.5D mesh calculated from the point cloud:
https://cloud.githubusercontent.com/assets/1951843/24327136/1448b174-1197-11e7-8678-e2e2c0bb5292.png


My goal at this moment is to smooth the resulting mesh as to remove some
of the "spikes" that appear after the 2.5D mesh is computed. I've
circled a few examples in this screenshot:
https://cloud.githubusercontent.com/assets/1951843/24327146/6203f9dc-1197-11e7-9c19-11e41d4e6d2c.png


Just to be sure: the noise is already in the input point set, right?

Sebastien.


I'm fairly new to CGAL and meshing algorithms, so I was hoping some more
experienced users could point me in the right direction?

Thank you!




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