CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Marc Klopfenstein wrote:
> Dear CGAL developers,
>
> I’m using Poisson Surface Reconstruction from Point Sets and it works almost
> well.
> I need to have control over the reconstruction error for my application.  If
> I understand correctly the documentation the error depends on:
> -       Surface Approximation error * average spacing.
> -       The number of point
> Is that true?
>
> On other problem is a crash of my application when the point set have more
> the 160k point. 
> In the CGAL Manual there is written “The Poisson implicit function
> computation has a memory peak when solving the Poisson linear system using
> the Taucs sparse linear solver. For large point sets, it may fail to
> allocate big chunks of memory due to memory fragmentation.
> The exact limit depends of the allocation scheme used by the compiler. In
> our experiments, a PC running Linux 32 bits can reconstruct the Bimba con
> Nastrino point set up to 1.6M points while Windows 32 bits is limited to
> 1.3M points.”
> Why did I have such a gap between my application (160k points) and your
> (1.3M points)? Did I made a bug or is it due to Taucs?   To find that out, I
> want to test my application whit the Bimba con Nastrino point set, so I can
> compare your results and mine. It is possible to send me the Bimba con
> Nastrino point set?
It is available on the website of 
aim@shape.

search for bimba here:
http://shapes.aimatshape.net/searchdiv.php

Sebastien.

> Thanks,
>
> Marc
>
>
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