CGAL users discussion list

["Laurent Rineau (CGAL/GeometryFactory)" <>]

Le Monday 06 June 2016 20:49:17 Joan Hensen a écrit :
> Hey guys,
> 
> I'm using the example Surface_mesher/mesh_a_3d_gray_image.cpp in order to
> triangulate some 3D images.
> 
> Apparently, there are problems when the images get to large. I have
> generated a test image and tried to apply 'mesh_a_3d_gray_image' on it:
> 
> ./mesh_a_3d_gray_image
> zlib error: data/test.inr: requested length does not fit in int
> _readImage: error: invalid data encountered in 'data/test.inr'
> 
> The image has a size of 2009 x 2009 x 400 voxel.
> 
> I have uploaded all data that you need to reproduce the error:
> https://www.dropbox.com/s/ki5vfqivj1qnsxs/data.zip?dl=0
> 
> Can you help me? I assume that more people would like to triangulate large
> images :-).

Hi,

This bug is know and already fixed in the Git branch will be used to 
published 
the upcoming bug-fix version CGAL-4.8.1.

The pull-request was:

  https://github.com/CGAL/cgal/pull/997

and the patch is limited to only one file:

  https://github.com/CGAL/cgal/pull/997/files

You can download the new version of the file here:

  
https://raw.githubusercontent.com/lrineau/cgal/7bea6910ab6b5ecc1cf27226655c5aa1d3e7a658/CGAL_ImageIO/include/CGAL/ImageIO_impl.h


You will have to recompile the CGAL_ImageIO library once you have patched the 
file.

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/