Method WriteData

IO/Legacy/vtkTreeWriter.cxx:30–99

}

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";

  bool error_occurred = false;

  if (!this->WriteFieldData(fp, input->GetFieldData()))
  {
    error_occurred = true;
  }
  if (!error_occurred && !this->WritePoints(fp, input->GetPoints()))
  {
    error_occurred = true;
  }
  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 = true;
  }
  if (!error_occurred && !this->WriteVertexData(fp, input))
  {
    error_occurred = true;
  }

  if (error_occurred)
  {
    if (this->FileName)
    {
      vtkErrorMacro("Ran out of disk space; deleting file: " << this->FileName);