Method MakeInformationVector

IO/Geometry/vtkOpenFOAMReader.cxx:5454–5523

------------------------------------------------------------------------------ Gather the necessary information to create a path to the data

//------------------------------------------------------------------------------
// Gather the necessary information to create a path to the data
bool vtkOpenFOAMReaderPrivate::MakeInformationVector(const std::string& casePath,
  const std::string& controlDictPath, const std::string& procName, vtkOpenFOAMReader* parent,
  bool requirePolyMesh)
{
  vtkFoamDebug(<< "MakeInformationVector (" << this->RegionName << "/" << procName
               << ") polyMesh:" << requirePolyMesh << " - list times\n");

  this->CasePath = casePath;
  this->ProcessorName = procName;
  this->Parent = parent;

  bool scanTimeDirs = true;
  bool listOk = true; // Tentative return value

#if VTK_FOAMFILE_LIST_TIMEDIRS_BY_CONTROLDICT
  if (!controlDictPath.empty() && this->Parent->GetListTimeStepsByControlDict())
  {
    // Predict timesteps from controlDict values
    vtkFoamError errors = this->ListTimeDirectoriesByControlDict(controlDictPath);

    listOk = errors.empty();
    if (listOk)
    {
      scanTimeDirs = false;
    }
    else
    {
      // Fall through to list by directory
      vtkWarningMacro(<< errors << " - listing by instance instead");
    }
  }
#endif // VTK_FOAMFILE_LIST_TIMEDIRS_BY_CONTROLDICT

  if (scanTimeDirs)
  {
    // List timesteps by directory
    listOk = this->ListTimeDirectoriesByInstances();
  }
  if (!listOk)
  {
    return false;
  }

  // does not seem to be required even if number of timesteps reduced
  // upon refresh since ParaView rewinds TimeStep to 0, but for precaution
  const vtkIdType nTimes = this->TimeValues->GetNumberOfTuples();
  if (nTimes)
  {
    if (this->TimeStep >= nTimes)
    {
      this->SetTimeStep(static_cast<int>(nTimes - 1));
    }
  }
  else
  {
    this->SetTimeStep(0);
  }