[vtkusers] Coloring Isolines -> Grey

[Sebastien Jourdain]

Hello Martin,

I didn't have an answer at my question yet, but I might have one for 
yours...

When you do such thing :

  _mapper->SetInput(_filter->GetOutput());
   _mapper->ScalarVisibilityOn();
   _mapper->SetScalarRange(0.0,1.0);
   _mapper->SetScalarModeToUsePointFieldData();
   _mapper->ColorByArrayComponent("u_y", 0);

You supposed that your data are on your points and inside a field, this 
might be wrong.

You might just try to use "SetScalarModeToUsePointData" instead...

I've noticed the same trouble with my data even if I didn't manage yet 
to show another color. :-)

Regards,

seb