[vtkusers] Display numerical values

[Nasos Iliopoulos]

Use vtkLabeledDataMapper if you want the numbers to be a label of some
3D points. The numbers will be always reprojected so that they face the
window. I find this function slow though for larger number of points
(>500) .
Example (ids is a vtkIdFilter in this example, you will have to alter to your needs):




vtkLabeledDataMapper *ldm = vtkLabeledDataMapper::New();        ldm->SetLabelModeToLabelIds();
        ldm->SetInput( ids->GetOutput() );

    vtkActor2D *pointLabels = vtkActor2D::New();

        pointLabels->SetMapper(ldm);
If you want to plot as a static text on the window try 
vtkTextActor. There maybe a better way though for data that is modified often.

> Date: Fri, 19 Jun 2009 04:53:42 -0700
> From: claude.gangolf at gmail.com
> To: vtkusers at vtk.org
> Subject: [vtkusers]  Display numerical values
> 
> 
> Hi to you all
> 
> I'm new in VTK Programming and i want to display some numerical value on the
> window where all the other stuff is shown but i don't know how to get a
> number in this window!
> 
> How can one use FloatArray to show this values on the screen
> 
> thx
> -- 
> View this message in context: http://www.nabble.com/Display-numerical-values-tp24110044p24110044.html
> Sent from the VTK - Users mailing list archive at Nabble.com.
> 
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