[vtk-developers] vtkExecutive::GetInputData: error messagenecessary?

[Ken Martin]

AFAIK sure go ahead - Ken

> -----Original Message-----
> From: vtk-developers-bounces+ken.martin=kitware.com at vtk.org [mailto:vtk-
> developers-bounces+ken.martin=kitware.com at vtk.org] On Behalf Of Prabhu
> Ramachandran
> Sent: Tuesday, July 05, 2005 2:58 PM
> To: vtk-developers at vtk.org
> Subject: [vtk-developers] vtkExecutive::GetInputData: error
> messagenecessary?
> 
> Hi,
> 
> I just noticed that doing something like this:
> 
> >>> import vtk
> >>> w = vtk.vtkWarpScalar()
> >>> w.GetInput()
> ERROR: In /skratch/prabhu/vtk/cvs/VTK/Filtering/vtkExecutive.cxx, line 478
> vtkStreamingDemandDrivenPipeline (0x824b198): Attempt to get input data
> for connection index 0 on input port 0 of algorithm
> vtkWarpScalar(0x824b248), which has 0 connections.
> 
> The method returns None as before (VTK-4.4).  The warning seems
> unnecessary to me.  There are a bunch of other methods which do not
> produce such a message and therefore the message is also inconsistent
> with what other methods do.  For example:
> 
> >>> vtk.vtkPolyDataMapper().GetInput()
> >>> vtk.vtkGlyph3D().GetInput()
> >>> vtk.vtkGlyph3D().GetSource(0)
> 
> which all do not produce any error messages.  I would therefore think
> that the error message is unnecessary and just an irritant.  Can this
> error message be removed?
> 
> cheers,
> prabhu
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