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122 lines
3.2 KiB
122 lines
3.2 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkDataObjectReader.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 "vtkDataObjectReader.h"
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#include "vtkObjectFactory.h"
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#include "vtkExecutive.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkFieldData.h"
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#include "vtkDataObject.h"
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vtkCxxRevisionMacro(vtkDataObjectReader, "$Revision: 1.19 $");
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vtkStandardNewMacro(vtkDataObjectReader);
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vtkDataObjectReader::vtkDataObjectReader()
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{
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vtkDataObject *output = vtkDataObject::New();
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this->SetOutput(output);
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// Releasing data for pipeline parallism.
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// Filters will know it is empty.
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output->ReleaseData();
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output->Delete();
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}
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vtkDataObjectReader::~vtkDataObjectReader()
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{
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}
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//----------------------------------------------------------------------------
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vtkDataObject *vtkDataObjectReader::GetOutput()
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{
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return this->GetOutput(0);
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}
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//----------------------------------------------------------------------------
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vtkDataObject* vtkDataObjectReader::GetOutput(int port)
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{
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return vtkDataObject::SafeDownCast(this->GetOutputDataObject(port));
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}
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//----------------------------------------------------------------------------
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void vtkDataObjectReader::SetOutput(vtkDataObject *output)
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{
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this->GetExecutive()->SetOutputData(0, output);
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}
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int vtkDataObjectReader::RequestData(
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vtkInformation *,
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vtkInformationVector **,
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vtkInformationVector *outputVector)
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{
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vtkInformation *outInfo = outputVector->GetInformationObject(0);
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vtkDataObject *output = outInfo->Get(vtkDataObject::DATA_OBJECT());
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char line[256];
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vtkFieldData *field=NULL;
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vtkDebugMacro(<<"Reading vtk field data...");
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if ( !(this->OpenVTKFile()) || !this->ReadHeader())
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{
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return 1;
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}
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// Read field data until end-of-file
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//
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while (this->ReadString(line) && !field )
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{
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if ( !strncmp(this->LowerCase(line),"field",(unsigned long)5) )
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{
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field = this->ReadFieldData(); //reads named field (or first found)
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if ( field != NULL )
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{
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output->SetFieldData(field);
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field->Delete();
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}
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}
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else if ( !strncmp(this->LowerCase(line),"dataset",(unsigned long)7) )
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{
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vtkErrorMacro(<<"Field reader cannot read datasets");
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this->CloseVTKFile();
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return 1;
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}
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else
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{
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vtkErrorMacro(<< "Unrecognized keyword: " << line);
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this->CloseVTKFile();
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return 1;
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}
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}
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//while field not read
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this->CloseVTKFile();
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return 1;
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}
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int vtkDataObjectReader::FillOutputPortInformation(int, vtkInformation *info)
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{
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info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkDataObject");
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return 1;
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}
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void vtkDataObjectReader::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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}
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