[vtkusers] Set the Color of each line in vtkChartParallelCoordinates

[Matthias Eggert]

Marcus D. Hanwell <marcus.hanwell <at> kitware.com> writes:

> 
> On Sat, Oct 15, 2011 at 3:22 PM, HansAusBremen <hansausbremen <at> gmx.net> 
wrote:
> > Thanks,
> >
> > but after updating to vtk-5.8 these functions still don't exist.
> > So I had 2 hours of compiling for nothing?
> >
> > Can somebody please help.
> >
> > vtkPlot does NOT have the functions, but in the examples they are used:
> >
> >> SelectColorArray()
> >> SetLookupTable()
> >> SetScalarVisibility()
> >>
> In C++ code you would need to do a vtkPlotPoints::SafeDowncast in
> order to access those methods as they are not in the base class.
> 
> http://www.vtk.org/doc/nightly/html/classvtkPlotPoints.html
> 
> Marcus
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Hi,

I tried your solutions, but I think I still don't get it. When I try:
  vtkSmartPointer<vtkLookupTable> lookupTable =    
vtkSmartPointer<vtkLookupTable>::New();
  lookupTable->SetTableRange(0.0, 10.0);
  lookupTable->Build();

  vtkPlotPoints* tmp = vtkPlotPoints::SafeDownCast(chart);
  tmp->SetLookupTable(lookupTable);
  tmp->SelectColorArray("Category_ids");

I just get a Run-Time exception. You don't have any c++ example do you?

Furthermore, a little different from the original topic, how do I access the 
lines, that have been selected? I just don't get it. Sorry for my stupidity^^

Kind regards,
Matthias