CGAL users discussion list

[Andreas Fabri <>]

Hi Sebastian,

Even 5.5.2 needs a call to custom initialization.  

https://doc.cgal.org/latest/Mesh_3/Mesh_3_2mesh_3D_image_with_custom_initialization_8cpp-example.html

So you must add

#include <CGAL/Mesh_3/initialize_triangulation_from_labeled_image.h>

and then call

 C3t3 c3t3;
  initialize_triangulation_from_labeled_image(c3t3,
                                              domain,
                                              image,
                                              criteria,
                                              static_cast<unsigned char>(0));
  CGAL::refine_mesh_3(c3t3, domain, criteria);

Best,

Andreas

On 5/25/2023 9:15 AM, Sebastian Bachmann ( via cgal-discuss Mailing List) wrote:

    I tested
      this now in 5.5.2 (according to github it should be in there as
      well?) but I cannot see any difference to 5.4 - except when using
      the custom init (see attached image). Code is still this one:
      https://gist.github.com/reox/0df1f446f0ff9d46e0688b60e8e858b8
      
      
      Best,
      
      Sebastian
      
      
      On 25.05.2023 08:32, Sebastian Bachmann ( via
      cgal-discuss Mailing List) wrote:
      
> Hi!
>         
>         Thanks for the hint as well!
>         
>         I'm using  5.4 / 1050401000.
>         
>         I'll also test with 5.4.4 (looks like that is the version where
>         it was merged?)
>         
>         
>         However, also the custom initialization works really good so
>         far.
>         
>         I fixed the seed for the random number generator to get
>         deterministic results, which works very well.
>         
>         
>         Best,
>         
>         Sebastian
>         
>         
>         
>         On 25.05.2023 08:15, Jane Tournois wrote:
>         
> > Hello,
> >           
> >           
> >           this local over-refinement issue has been fixed in the master
> >           branch by the following pull-request :
> >           
> >           https://github.com/CGAL/cgal/pull/6978
> >           
> >           
> >           Which version of CGAL are you using?
> >           
> >           
> >           Best,
> >           
> >           
> >           Jane.
> >           
> >           
> >         
>         
>       
      
    
-- 
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project