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Re: [cgal-discuss] normal vector for large point data


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  • From: tina rumi <>
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  • Subject: Re: [cgal-discuss] normal vector for large point data
  • Date: Sun, 27 Dec 2009 19:08:54 -0500
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Hi Guang,

I had same problem, and Laurent and Nader helped me to solve it. Actually, you need to use Release mode not Debug to compile your code. It makes big difference. for my data, debug was taking 3 days but release took  just few minutes. At first, you can use the cgal normal example which you can find in example folder.

Hope this help,
Tina
 

On Fri, Dec 25, 2009 at 9:24 AM, Zheng,Guang <> wrote:
Hi,

Has anyone compute the normal vector for a large size point cloud data (more than 10M), it seems that the algorithm provided by CGAL is not so efficient for this kind of size dataset. Anyone has any suggestions about this? 

Right now, my computer has been running more than 10 hours (8CPU and 4G RAM, windows 64bit). 

Thanks very much!

--
Guang




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