CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

The caption says "using 6 clusters".

Sebastien.

On 08/26/2016 12:43 PM, Pablo Sánchez wrote:
> I read the note, yes, but I'm kind of confused as to why when I try with
> 0.26 lambda and 2 clusters I don't get the same result seen in the example.
> It looks more like the one with 4 clusters even though I set it to 2.
>
> Pablo Sánchez
>
>
> 2016-08-26 9:42 GMT+02:00 Sebastien Loriot (GeometryFactory)
> <
>  
> <mailto:>>:
>
>     I got 13 segments.
>     Did you pay attention to the note here:
>     
> http://doc.cgal.org/latest/Surface_mesh_segmentation/index.html#Surface_mesh_segmentationSoftClustering
>     
> <http://doc.cgal.org/latest/Surface_mesh_segmentation/index.html#Surface_mesh_segmentationSoftClustering>
>
>     Sebastien.
>
>
>     On 08/22/2016 05:27 PM, Pablo Sánchez wrote:
>
>         I'll try that value and come back with the results.
>
>         Pablo Sánchez
>
>         2016-08-22 17:27 GMT+02:00 Sebastien Loriot (GeometryFactory)
>         
> <
>  
> <mailto:>
>         
> <mailto:
>  
> <mailto:>>>:
>
>              On 08/22/2016 05:23 PM, Pablo Sánchez wrote:
>
>                  Hi Sebastien,
>
>                  I tried using a modified demo in order to get the
>         segments in
>                  different
>                  meshes. I'm having success in getting the segmented
>         meshes but
>                  segmentation doesn't seem to change with any of the
>         parameters.
>
>                  Could you specify what value of smoothing lambda you used?
>
>
>              The default in the demo: 0.26
>
>              Sebastien.
>
>
>                  Regards
>
>                  Pablo Sánchez
>
>                  2016-08-22 17:20 GMT+02:00 Sebastien Loriot
>         (GeometryFactory)
>                  
> <
>  
> <mailto:>
>         
> <mailto:
>  
> <mailto:>>
>                  
> <mailto:
>         
> <mailto:>
>  
> <mailto:
>         
> <mailto:>>>>:
>
>
>
>                       I tried using the polyhedron demo on the elephant
>         model,
>                  selecting 6
>                       clusters and got something that is similar to the
>         first
>                  image in the
>                       documentation. What did you try?
>
>                       Sebastien.
>
>
>                       On 08/14/2016 03:20 PM, Pablo Sánchez wrote:
>
>                           Hi,
>
>                           Lately I've been working with CGAL's mesh
>         segmentation
>                           functionalities
>                           and I'm having some problems achieving different
>                  segmentations
>                           through
>                           number_of_clusters and smoothing_lambda
>         parameters.
>
>                           I'm using your "elephant.off" mesh as an
>         example, and
>                  as I try
>                           to get
>                           the results you expose in your documentation for
>                  Surface Mesh
>                           Segmentation, I'm not able to get the same kind of
>                  segmentation.
>
>                           Even though I change the values of the
>         parameters, I
>                  still get
>                           the same
>                           segmentation in every iteration.
>
>                           Could I get a hint of what I'm doing wrong?
>
>                           Regards,
>
>                           Pablo Sánchez
>
>
>
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