[vtkusers] issue in vtkGraphLayoutView

[Jeff Baumes]

My understanding is that scalar bars were a beta feature that never was
fully functional and should either be completed or removed.

You are however free to set up your own vtkScalarBarActor with your lookup
tables from your theme and call view->GetRenderer()->AddActor(scalarbar).

Jeff

On Tue, Feb 15, 2011 at 7:35 AM, Steffen Oeltze <
stoeltze at isg.cs.uni-magdeburg.de> wrote:

> Hi,
>
> I am using a vtkGraphLayoutView as follows:
>
> vtkSmartPointer<vtkGraphLayoutView> glv =
> vtkSmartPointer<vtkGraphLayoutView>::New();
> glv->SetLayoutStrategyToCircular();
> glv ->SetRepresentationFromInput(this);
> glv ->VertexLabelVisibilityOn();
> glv ->SetVertexColorArrayName("VertexDegree");
> glv ->SetVertexLabelArrayName("VertexNames");
> glv ->ColorVerticesOn();
> glv ->SetEdgeColorArrayName("ColorIndices");
> glv ->ColorEdgesOn();
> glv ->SetEdgeLayoutStrategyToArcParallel();
> // glv ->SetEdgeScalarBarVisibility(true);
> // glv ->SetVertexScalarBarVisibility(true);
>
> When I uncomment the last two lines in order to visualize the corresponding
> scalar bars, I receive the following errors:
>
> Warning: In ..\..\Rendering\vtkScalarBarActor.cxx, line 240
> vtkScalarBarActor (000000000CE56140): Need a mapper to render a scalar bar
>
> Warning: In ..\..\Rendering\vtkScalarBarActor.cxx, line 263
> vtkScalarBarActor (000000000CE55E80): Need a mapper to render a scalar bar
> ...
>
> Do you have any idea why this is happening?
>
> Best Regards,
> Steffen
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-- 
Jeff Baumes, Ph.D.
Technical Lead, Kitware Inc.
(518) 881-4932
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