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/*=========================================================================
Program: Visualization Toolkit
Module: vtkRemoveHiddenData.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 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkRemoveHiddenData.h"
#include "vtkAnnotation.h"
#include "vtkAnnotationLayers.h"
#include "vtkCellData.h"
#include "vtkConvertSelection.h"
#include "vtkDoubleArray.h"
#include "vtkExtractSelectedGraph.h"
#include "vtkExtractSelectedRows.h"
#include "vtkGraph.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkDataSet.h"
#include "vtkScalarsToColors.h"
#include "vtkSmartPointer.h"
#include "vtkTable.h"
#include "vtkUnsignedCharArray.h"
#include "vtkSelection.h"
#include "vtkSelectionNode.h"
vtkStandardNewMacro(vtkRemoveHiddenData);
vtkRemoveHiddenData::vtkRemoveHiddenData()
{
this->ExtractGraph = vtkSmartPointer<vtkExtractSelectedGraph>::New();
this->ExtractGraph->SetRemoveIsolatedVertices(false);
this->ExtractTable = vtkSmartPointer<vtkExtractSelectedRows>::New();
this->SetNumberOfInputPorts(2);
}
vtkRemoveHiddenData::~vtkRemoveHiddenData()
{
}
int vtkRemoveHiddenData::FillInputPortInformation(int port, vtkInformation* info)
{
if (port == 0)
{
info->Remove(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE());
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkGraph");
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTable");
}
else if (port == 1)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkAnnotationLayers");
info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
}
return 1;
}
int vtkRemoveHiddenData::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation* annotationsInfo = inputVector[1]->GetInformationObject(0);
vtkInformation* outInfo = outputVector->GetInformationObject(0);
// get the input and output
vtkDataObject* input = inInfo->Get(vtkDataObject::DATA_OBJECT());
vtkDataObject* output = outInfo->Get(vtkDataObject::DATA_OBJECT());
vtkAnnotationLayers* annotations = 0;
if (annotationsInfo)
{
annotations = vtkAnnotationLayers::SafeDownCast(
annotationsInfo->Get(vtkDataObject::DATA_OBJECT()));
}
// Nothing to do if no input annotations
if (!annotations)
{
output->ShallowCopy(input);
return 1;
}
vtkGraph* graph = vtkGraph::SafeDownCast(output);
vtkTable* table = vtkTable::SafeDownCast(output);
vtkSmartPointer<vtkSelection> selection = vtkSmartPointer<vtkSelection>::New();
unsigned int numAnnotations = annotations->GetNumberOfAnnotations();
int numHiddenAnnotations = 0;
for (unsigned int a = 0; a < numAnnotations; ++a)
{
vtkAnnotation* ann = annotations->GetAnnotation(a);
// Only if the annotation is both enabled AND hidden will
// its selection get added
if (ann->GetInformation()->Has(vtkAnnotation::ENABLE()) &&
ann->GetInformation()->Get(vtkAnnotation::ENABLE())==1 &&
ann->GetInformation()->Has(vtkAnnotation::HIDE()) &&
ann->GetInformation()->Get(vtkAnnotation::HIDE())==1 )
{
selection->Union(ann->GetSelection());
numHiddenAnnotations++;
}
}
// Nothing to do if no hidden annotations
if(numHiddenAnnotations == 0)
{
output->ShallowCopy(input);
return 1;
}
// We want to output the visible data, so the hidden annotation
// selections need to be inverted before sent to the extraction filter:
for (unsigned int i = 0; i < selection->GetNumberOfNodes(); ++i)
{
vtkSelectionNode* node = selection->GetNode(i);
node->GetProperties()->Set(vtkSelectionNode::INVERSE(),1);
}
if (graph)
{
this->ExtractGraph->SetInputData(input);
this->ExtractGraph->SetInputData(1, selection);
this->ExtractGraph->Update();
output->ShallowCopy(this->ExtractGraph->GetOutput());
}
else if (table)
{
this->ExtractTable->SetInputData(input);
this->ExtractTable->SetInputData(1, selection);
this->ExtractTable->Update();
output->ShallowCopy(this->ExtractTable->GetOutput());
}
else
{
vtkErrorMacro("Unsupported input data type.");
return 0;
}
return 1;
}
void vtkRemoveHiddenData::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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