[vtkusers] Using vtkMergePoints

[Mathieu Malaterre]

Nacho,

	vtkMergePoints does not do any bounds checking. So if you define a 
bound too small for all your points the programm will crash (it's a 
feature). I would suggest you atifically augment your bound.

	The fact that it used to run, I don't know. Could this be a problem 
with double that does not appear with float...

HTH
Mathieu

Nacho Larrabide wrote:
> Hi everybody,
> 
>    I'm using a cvs vtk version and I'm tryng to use the vtkMergePoints
>    class to create the set of point corresponding to a very big
>    triangle mesh. The code that I'm usind is this:
> 
>     vtkMergePoints *mp=vtkMergePoints::New();
>         mp->InitPointInsertion(puntos,bounds,estimatedSize);
>         mp->SetAutomatic(1);
> 
>         ....
>         
>     float pt1[3],pt2[3];
>     int id1,id2;
>         // some point initialization
>         mp->InsertUniquePoint(pt1,id1);
>         mp->InsertUniquePoint(pt2,id2);
> 
>     By wath I read so far this should do the work, but somewere around
>     point 43.000 and something this blows up. Debugging the code I
>     found that the bucket that vtkMergePoints is inserting the point
>     can not be retreived by the HashTable.
>     Am I missing something?, This same code use to work with an older
>     vtk version (vtk4.0 I think).
>     Please help...:D
> 
>     Regards,
> 
>     Nacho
> 
> ----------------------------------------------------- 
> Nacho Larrabide
> Rua Getulio Vargas 333 - Quitandinha - CEP: 25651-070
> Petropolis - RJ - Brasil
> 
> Tel: +54 24 2233-6137  - Fax: +54 24 2233-6167
> 
> mailto:nacho at lncc.br
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