Method GetTimeValue

IO/Parallel/vtkMultiBlockPLOT3DReader.cxx:1432–1535

}

double vtkMultiBlockPLOT3DReader::GetTimeValue(const std::string& fname)
{
  int rank = 0;
  // For now, only first rank does any reading.
  if (this->Controller)
  {
    rank = this->Controller->GetLocalProcessId();
  }

  double time = vtkMath::Nan();
  bool hasTime = false;
  int retval = 1;
  if (rank == 0)
  {
    try
    {
      if (this->XYZFileName && this->XYZFileName[0] != '\0' &&
        (this->Internal->NeedToCheckXYZFile || this->Internal->Blocks.empty()))
      {
        vtkPlot3DCFile xyzFp;
        if (this->CheckGeometryFile(xyzFp) != VTK_OK)
        {
          throw Plot3DException();
        }

        this->CalculateFileSize(xyzFp);

        if (!this->AutoDetectionCheck(xyzFp))
        {
          throw Plot3DException();
        }
        this->Internal->NeedToCheckXYZFile = false;
      }

      // We report time from the Q file for meta-type readers that
      // might support file series of Q files.
      if (!fname.empty())
      {
        vtkPlot3DCFile qFp;
        if (this->CheckFile(qFp, fname.c_str()) != VTK_OK)
        {
          throw Plot3DException();
        }
        int nq, nqc, overflow;
        if (this->ReadQHeader(qFp, false, nq, nqc, overflow) != VTK_OK)
        {
          throw Plot3DException();
        }

        // I have seen Plot3D files with bogus time values so the only
        // type I have some confidence about having correct time values
        // is Overflow output.
        if (overflow)
        {
          vtkDataArray* properties = this->NewFloatArray();

          this->SkipByteCount(qFp);
          properties->SetNumberOfTuples(4);