Method CheckBlankingAndPrecision

IO/Parallel/vtkMultiBlockPLOT3DReaderInternals.cxx:185–244

}

int vtkMultiBlockPLOT3DReaderInternals::CheckBlankingAndPrecision(FILE* fp)
{
  int recMarkBeg, recMarkEnd, numGrids = 1, nMax, totPts;

  clearerr(fp);           // clear error and EOF flags
  fseek(fp, 0, SEEK_SET); // move to beginning
  if (this->Settings.MultiGrid)
  {
    if (!this->ReadInts(fp, 1, &recMarkBeg) || !this->ReadInts(fp, 1, &numGrids) ||
      !this->ReadInts(fp, 1, &recMarkEnd))
    {
      return 0;
    }
  }
  if (!this->ReadInts(fp, 1, &recMarkBeg))
  {
    return 0;
  }
  nMax = this->Settings.NumberOfDimensions * numGrids;
  std::vector<int> jmax(numGrids * 3); // allocate memory for jmax
  if (!this->ReadInts(fp, nMax, jmax.data()) || !this->ReadInts(fp, 1, &recMarkEnd))
  {
    return 0;
  }
  totPts = 1;
  for (int i = 0; i < this->Settings.NumberOfDimensions; i++)
  {
    totPts *= jmax[i];
  }
  this->ReadInts(fp, 1, &recMarkBeg);
  // single precision, with iblanking
  if (recMarkBeg == totPts * (this->Settings.NumberOfDimensions * 4 + 4))
  {
    this->Settings.Precision = 4;
    this->Settings.IBlanking = 1;
    return 1;
  }
  // double precision, with iblanking
  else if (recMarkBeg == totPts * (this->Settings.NumberOfDimensions * 8 + 4))
  {
    this->Settings.Precision = 8;
    this->Settings.IBlanking = 1;
    return 1;
  }
  // single precision, no iblanking
  else if (recMarkBeg == totPts * this->Settings.NumberOfDimensions * 4)
  {
    this->Settings.Precision = 4;
    this->Settings.IBlanking = 0;
    return 1;
  }
  // double precision, no iblanking
  else if (recMarkBeg == totPts * this->Settings.NumberOfDimensions * 8)
  {
    this->Settings.Precision = 8;
    this->Settings.IBlanking = 0;
    return 1;
  }