[vtkusers] vtkMath::vtkJacobiN warning

[Tim Hutton]

Hi vtk users,

At around line 600 of vtkMath.cxx is the following:

//// this is NEVER called
if ( i >= VTK_MAX_ROTATIONS )
   {
   vtkGenericWarningMacro(
      "vtkMath::Jacobi: Error extracting eigenfunctions");
   return 0;
}

and, guess what, I get this warning coming up.

I know that numerical routines like these are never perfect, but is there 
anything obvious I can try to work out why this problem is coming up?

Above the code are the lines

#define VTK_MAX_ROTATIONS 20

//#undef VTK_MAX_ROTATIONS

//#define VTK_MAX_ROTATIONS 50

which makes me think this problem has cropped up before.

Thanks,

Tim.




---------------------------------------------------------------------------
Tim Hutton,                           http://www.eastman.ucl.ac.uk/~thutton
Research Fellow & PhD student,                   T.Hutton at eastman.ucl.ac.uk
MINORI Project, Biomedical Informatics Unit,
Eastman Dental Institute, UCL,                   Tel: [+44] (0)20 7915 2344
256 Gray's Inn Road, London WC1X 8LD, UK         Fax: on request
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