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/*=========================================================================
Program: Visualization Toolkit
Module: vtkTreeWriter.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.
=========================================================================*/
#include "vtkTreeWriter.h"
#include "vtkByteSwap.h"
#include "vtkCellArray.h"
#include "vtkTree.h"
#include "vtkInformation.h"
#include "vtkObjectFactory.h"
#if !defined(_WIN32) || defined(__CYGWIN__)
# include <unistd.h> /* unlink */
#else
# include <io.h> /* unlink */
#endif
vtkStandardNewMacro(vtkTreeWriter);
void vtkTreeWriter::WriteEdges(ostream& Stream, vtkTree* Tree)
{
for (vtkIdType e = 0; e < Tree->GetNumberOfEdges(); ++e)
{
vtkIdType parent = Tree->GetSourceVertex(e);
vtkIdType child = Tree->GetTargetVertex(e);
Stream << child << " " << parent << "\n";
}
}
void vtkTreeWriter::WriteData()
{
ostream *fp;
vtkTree* const input = this->GetInput();
vtkDebugMacro(<<"Writing vtk tree data...");
if ( !(fp=this->OpenVTKFile()) || !this->WriteHeader(fp) )
{
if (fp)
{
if(this->FileName)
{
vtkErrorMacro("Ran out of disk space; deleting file: "
<< this->FileName);
this->CloseVTKFile(fp);
unlink(this->FileName);
}
else
{
this->CloseVTKFile(fp);
vtkErrorMacro("Could not read memory header. ");
}
}
return;
}
*fp << "DATASET TREE\n";
int error_occurred = 0;
if(!error_occurred && !this->WriteFieldData(fp, input->GetFieldData()))
{
error_occurred = 1;
}
if (!error_occurred && !this->WritePoints(fp, input->GetPoints()))
{
error_occurred = 1;
}
if(!error_occurred)
{
const vtkIdType edge_count = input->GetNumberOfEdges();
*fp << "EDGES " << edge_count << "\n";
this->WriteEdges(*fp, input);
}
if (!error_occurred && !this->WriteEdgeData(fp, input))
{
error_occurred = 1;
}
if (!error_occurred && !this->WriteVertexData(fp, input))
{
error_occurred = 1;
}
if(error_occurred)
{
if(this->FileName)
{
vtkErrorMacro("Ran out of disk space; deleting file: " << this->FileName);
this->CloseVTKFile(fp);
unlink(this->FileName);
}
else
{
vtkErrorMacro("Error writing data set to memory");
this->CloseVTKFile(fp);
}
return;
}
this->CloseVTKFile(fp);
}
int vtkTreeWriter::FillInputPortInformation(int, vtkInformation *info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTree");
return 1;
}
vtkTree* vtkTreeWriter::GetInput()
{
return vtkTree::SafeDownCast(this->Superclass::GetInput());
}
vtkTree* vtkTreeWriter::GetInput(int port)
{
return vtkTree::SafeDownCast(this->Superclass::GetInput(port));
}
void vtkTreeWriter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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