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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAppendSelection.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
#include "vtkAppendSelection.h"
#include "vtkAlgorithmOutput.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSelection.h"
#include "vtkSelectionNode.h"
#include "vtkSmartPointer.h"
#include "vtkStreamingDemandDrivenPipeline.h"
vtkStandardNewMacro(vtkAppendSelection);
//----------------------------------------------------------------------------
vtkAppendSelection::vtkAppendSelection()
{
this->UserManagedInputs = 0;
this->AppendByUnion = 1;
}
//----------------------------------------------------------------------------
vtkAppendSelection::~vtkAppendSelection()
{
}
//----------------------------------------------------------------------------
// Add a dataset to the list of data to append.
void vtkAppendSelection::AddInput(vtkSelection *ds)
{
if (this->UserManagedInputs)
{
vtkErrorMacro(<<
"AddInput is not supported if UserManagedInputs is true");
return;
}
this->Superclass::AddInputConnection(ds->GetProducerPort());
}
//----------------------------------------------------------------------------
// Remove a dataset from the list of data to append.
void vtkAppendSelection::RemoveInput(vtkSelection *ds)
{
if (this->UserManagedInputs)
{
vtkErrorMacro(<<
"RemoveInput is not supported if UserManagedInputs is true");
return;
}
vtkAlgorithmOutput *algOutput = 0;
if (ds)
{
algOutput = ds->GetProducerPort();
}
this->RemoveInputConnection(0, algOutput);
}
//----------------------------------------------------------------------------
// make ProcessObject function visible
// should only be used when UserManagedInputs is true.
void vtkAppendSelection::SetNumberOfInputs(int num)
{
if (!this->UserManagedInputs)
{
vtkErrorMacro(<<
"SetNumberOfInputs is not supported if UserManagedInputs is false");
return;
}
// Ask the superclass to set the number of connections.
this->SetNumberOfInputConnections(0, num);
}
//----------------------------------------------------------------------------
// Set Nth input, should only be used when UserManagedInputs is true.
void vtkAppendSelection::SetInputByNumber(int num, vtkSelection *input)
{
if (!this->UserManagedInputs)
{
vtkErrorMacro(<<
"SetInputByNumber is not supported if UserManagedInputs is false");
return;
}
// Ask the superclass to connect the input.
this->SetNthInputConnection(0, num, input? input->GetProducerPort() : 0);
}
//----------------------------------------------------------------------------
int vtkAppendSelection::RequestData(vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// Get the info object
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// Get the output
vtkSelection *output = vtkSelection::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
output->Initialize();
// If there are no inputs, we are done.
int numInputs = this->GetNumberOfInputConnections(0);
if (numInputs == 0)
{
return 1;
}
if (!this->AppendByUnion)
{
for (int idx=0; idx < numInputs; ++idx)
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(idx);
vtkSelection *sel = vtkSelection::GetData(inInfo);
if (sel != NULL)
{
for (unsigned int j = 0; j < sel->GetNumberOfNodes(); ++j)
{
vtkSelectionNode* inputNode = sel->GetNode(j);
vtkSmartPointer<vtkSelectionNode> outputNode =
vtkSmartPointer<vtkSelectionNode>::New();
outputNode->ShallowCopy(inputNode);
output->AddNode(outputNode);
}
}
} // for each input
return 1;
}
// The first non-null selection determines the required content type of all selections.
int idx = 0;
vtkSelection *first = NULL;
while (first == NULL && idx < numInputs)
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(idx);
first = vtkSelection::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
idx++;
}
// If they are all null, return.
if (first == NULL)
{
return 1;
}
output->ShallowCopy(first);
// Take the union of all non-null selections
for (; idx < numInputs; ++idx)
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(idx);
vtkSelection *s = vtkSelection::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
if (s != NULL)
{
output->Union(s);
} // for a non NULL input
} // for each input
return 1;
}
//----------------------------------------------------------------------------
vtkSelection *vtkAppendSelection::GetInput(int idx)
{
return vtkSelection::SafeDownCast(
this->GetExecutive()->GetInputData(0, idx));
}
//----------------------------------------------------------------------------
int vtkAppendSelection::FillInputPortInformation(int port, vtkInformation *info)
{
if (!this->Superclass::FillInputPortInformation(port, info))
{
return 0;
}
info->Set(vtkAlgorithm::INPUT_IS_REPEATABLE(), 1);
return 1;
}
//----------------------------------------------------------------------------
void vtkAppendSelection::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << "UserManagedInputs: " << (this->UserManagedInputs?"On":"Off") << endl;
os << "AppendByUnion: " << (this->AppendByUnion? "On": "Off") << endl;
}
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