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151 lines
4.0 KiB
151 lines
4.0 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkIdFilter.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkIdFilter.h"
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#include "vtkCellData.h"
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#include "vtkDataSet.h"
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#include "vtkDataSet.h"
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#include "vtkIdTypeArray.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkObjectFactory.h"
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#include "vtkPointData.h"
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vtkCxxRevisionMacro(vtkIdFilter, "$Revision: 1.21 $");
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vtkStandardNewMacro(vtkIdFilter);
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// Construct object with PointIds and CellIds on; and ids being generated
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// as scalars.
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vtkIdFilter::vtkIdFilter()
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{
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this->PointIds = 1;
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this->CellIds = 1;
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this->FieldData = 0;
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this->IdsArrayName = NULL;
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this->SetIdsArrayName("vtkIdFilter_Ids");
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}
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vtkIdFilter::~vtkIdFilter()
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{
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if (this->IdsArrayName)
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{
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delete []IdsArrayName;
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}
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}
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//
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// Map ids into attribute data
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//
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int vtkIdFilter::RequestData(
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vtkInformation *vtkNotUsed(request),
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector)
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{
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// get the info objects
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vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
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vtkInformation *outInfo = outputVector->GetInformationObject(0);
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// get the input and ouptut
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vtkDataSet *input = vtkDataSet::SafeDownCast(
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inInfo->Get(vtkDataObject::DATA_OBJECT()));
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vtkDataSet *output = vtkDataSet::SafeDownCast(
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outInfo->Get(vtkDataObject::DATA_OBJECT()));
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vtkIdType numPts, numCells, id;
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vtkIdTypeArray *ptIds;
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vtkIdTypeArray *cellIds;
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vtkPointData *inPD=input->GetPointData(), *outPD=output->GetPointData();
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vtkCellData *inCD=input->GetCellData(), *outCD=output->GetCellData();
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// Initialize
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//
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vtkDebugMacro(<<"Generating ids!");
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// First, copy the input to the output as a starting point
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output->CopyStructure( input );
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numPts = input->GetNumberOfPoints();
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numCells = input->GetNumberOfCells();
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// Loop over points (if requested) and generate ids
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//
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if ( this->PointIds && numPts > 0 )
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{
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ptIds = vtkIdTypeArray::New();
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ptIds->SetNumberOfValues(numPts);
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for (id=0; id < numPts; id++)
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{
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ptIds->SetValue(id, id);
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}
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if ( ! this->FieldData )
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{
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int idx = outPD->AddArray(ptIds);
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outPD->SetActiveAttribute(idx, vtkDataSetAttributes::SCALARS);
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outPD->CopyScalarsOff();
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}
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else
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{
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ptIds->SetName(this->IdsArrayName);
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outPD->AddArray(ptIds);
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outPD->CopyFieldOff(this->IdsArrayName);
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}
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ptIds->Delete();
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}
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// Loop over cells (if requested) and generate ids
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//
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if ( this->CellIds && numCells > 0 )
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{
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cellIds = vtkIdTypeArray::New();
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cellIds->SetNumberOfValues(numCells);
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for (id=0; id < numCells; id++)
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{
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cellIds->SetValue(id, id);
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}
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if ( ! this->FieldData )
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{
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int idx = outCD->AddArray(cellIds);
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outCD->SetActiveAttribute(idx, vtkDataSetAttributes::SCALARS);
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outCD->CopyScalarsOff();
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}
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else
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{
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cellIds->SetName(this->IdsArrayName);
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outCD->AddArray(cellIds);
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outCD->CopyFieldOff(this->IdsArrayName);
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}
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cellIds->Delete();
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}
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outPD->PassData(inPD);
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outCD->PassData(inCD);
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return 1;
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}
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void vtkIdFilter::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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os << indent << "Point Ids: " << (this->PointIds ? "On\n" : "Off\n");
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os << indent << "Cell Ids: " << (this->CellIds ? "On\n" : "Off\n");
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os << indent << "Field Data: " << (this->FieldData ? "On\n" : "Off\n");
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os << indent << "IdsArrayName: " << (this->IdsArrayName ? this->IdsArrayName
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: "(none)") << "\n";
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}
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