Method WriteVectorData

IO/Legacy/vtkDataWriter.cxx:1645–1678

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int vtkDataWriter::WriteVectorData(ostream* fp, vtkDataArray* vectors, vtkIdType num)
{
  *fp << "VECTORS ";

  char* vectorsName;
  // Buffer size is size of array name times four because
  // in theory there could be array name consisting of only
  // weird symbols.
  if (!this->VectorsName)
  {
    if (vectors->GetName() && strlen(vectors->GetName()))
    {
      vectorsName = new char[strlen(vectors->GetName()) * 4 + 1];
      this->EncodeString(vectorsName, vectors->GetName());
    }
    else
    {
      vectorsName = new char[strlen("vectors") + 1];
      strcpy(vectorsName, "vectors");
    }
  }
  else
  {
    vectorsName = new char[strlen(this->VectorsName) * 4 + 1];
    this->EncodeString(vectorsName, this->VectorsName);
  }

  char format[1024];
  auto result = vtk::format_to_n(format, sizeof(format), "{:s} {:s}\n", vectorsName, "{:s}");
  *result.out = '\0';
  delete[] vectorsName;

  return this->WriteArray(fp, vectors->GetDataType(), vectors, format, num, 3);
}

int vtkDataWriter::WriteNormalData(ostream* fp, vtkDataArray* normals, vtkIdType num)
{