[vtkusers] vtkCleanPolyData hanging on Update call

[sebastien MARAUX]

Hello

I got a loop with 10 differents polygons,
that I want to process and then clean.

I make a loop, and at the end of the process
call vtkCleanPolyData this way :

/*--------------------------------------------------------------------------
----*/

  vtkCleanPolyData *cleaner=vtkCleanPolyData::New();
  cleaner->SetInput(mp_PolyData);
  cleaner->SetTolerance(0.0);
  cleaner->Update();

  mp_PolyData->SetPoints(cleaner->GetOutput()->GetPoints());
  mp_PolyData->DeepCopy(cleaner->GetOutput());

/*--------------------------------------------------------------------------
----*/

The result is OK at first pass (15000  polys, 64000 pts cleaned to around
18000 points)
, OK at second (8000 polys, 50000 points cleaned to 10000 points),
but third polygon make vtkCleanPolyData hang at third pass when calling
Update()
with 15000 points and 4000 polys.

I tried with other smaller (end loop) polygons, and it runned OK.

It exactly hangs on the Update call, with only polys and points.
(access violation in vtkCommon says MS VC++ 6.0)

What can make vtkCleanPolyData hang ?

Thanks

Seb