[Paraview] Maximum number of pieces, what does it mean?

[Fred Fred]

Hello,
First I am not running in parallel. I have just written a filter inherited from vtkPolyDataAlgorithm that generates 4 output ports.
I probably did not understand well, what I did is to add the  method:

int
vtkFlowCoordinates::RequestInformation(vtkInformation* vtkNotUsed(request), vtkInformationVector** vtkNotUsed(inputVector), vtkInformationVector* outputVector)
{
  outputVector->GetInformationObject(0)->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), -1);
  outputVector->GetInformationObject(1)->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), -1);
  outputVector->GetInformationObject(2)->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), -1);
  outputVector->GetInformationObject(3)->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), -1);
  return 1;
}

but I still get the same errors, even if the result is ok, ie all 4 ports contain polydata, so it is just annoying to get this popup widget with error each time I Apply again!



ERROR: In /usr/local/ParaView3/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx, line 806
vtkCompositeDataPipeline (0x2605d570): No maximum number of pieces has been set in the information for output port 1 on algorithm vtkFlowCoordinates(0x2605cc20).


ERROR: In /usr/local/ParaView3/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx, line 806
vtkCompositeDataPipeline (0x2605d570): No maximum number of pieces has been set in the information for output port 2 on algorithm vtkFlowCoordinates(0x2605cc20).


ERROR: In /usr/local/ParaView3/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx, line 806
vtkCompositeDataPipeline (0x2605d570): No maximum number of pieces has been set in the information for output port 3 on algorithm vtkFlowCoordinates(0x2605cc20).



Date: Wed, 3 Feb 2010 15:50:21 -0500
Subject: Re: [Paraview] Maximum number of pieces, what does it mean?
From: berk.geveci at kitware.com
To: stan1313 at hotmail.fr
CC: paraview at paraview.org

Hi Fred,

I am guessing that this is a filter that you wrote and that you are running in parallel. If that's case, you need something like:

  vtkInformation *outInfo = outputVector->GetInformationObject(NNN);

  outInfo->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(),
               -1);

where NNN is the output port number. This goes in RequestInformation().

Best,
-berk


On Wed, Feb 3, 2010 at 12:03 PM, Fred Fred <stan1313 at hotmail.fr> wrote:






Or how to cope with it? I mean how to specify the maximum number of pieces in a multi-output filter?

From: stan1313 at hotmail.fr
To: paraview at paraview.org

Date: Tue, 2 Feb 2010 23:57:02 +0100
Subject: [Paraview] Maximum number of pieces, what does it mean?









I get this error when I select the 2nd output as displayable, although it contains 4 cells and 10 points, so it is not empty.
What does it mean?

ERROR: In /usr/local/ParaView3/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx, line 806

vtkCompositeDataPipeline
(0x2361e150): No maximum number of pieces has been set in the
information for output port 1 on algorithm vtkFlowCoordinates(0x2361d8c0).


 		 	   		  
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