[vtkusers] Set the Color of each line in vtkChartParallelCoordinates

[Matthias Eggert]

I tried:

chart->GetPlot(0)->SetInput(table);
vtkPlotParallelCoordinates::SafeDownCast(chart->GetPlot(0))->SetLookupTable(Lut);
view->GetScene()->AddItem(chart);

At least this gives no errors. But unforunatly the widget unchanged  :(