Method ReadPointsFile

IO/Geometry/vtkOpenFOAMReader.cxx:6690–6751

// - sets NumPoints

vtkSmartPointer<vtkFloatArray> vtkOpenFOAMReaderPrivate::ReadPointsFile(
  const std::string& timeRegionDir)
{
  // Assume failure
  this->NumPoints = 0;

  vtkFoamIOobject io(this->CasePath, this->Parent);

  // Read polyMesh/points
  if (!io.OpenOrGzip(timeRegionDir + "/polyMesh/points"))
  {
    vtkErrorMacro(<< "Error opening " << io.GetFileName() << ": " << io.GetError());
#if VTK_OPENFOAM_TIME_PROFILING
    this->RequestDataTimeInMicroseconds += io.TimeInMicroseconds;
    this->RequestDataBytes += io.Bytes;
#endif
    return nullptr;
  }

  vtkSmartPointer<vtkFloatArray> pointArray;

  try
  {
    vtkFoamEntryValue dict(nullptr);

    if (io.IsFloat64())
    {
      dict.ReadNonUniformList<vtkFoamToken::VECTORLIST, //
        vtkFoamRead::vectorListTraits<vtkFloatArray, double, 3>>(io);
    }
    else
    {
      dict.ReadNonUniformList<vtkFoamToken::VECTORLIST, //
        vtkFoamRead::vectorListTraits<vtkFloatArray, float, 3>>(io);
    }

    // Capture content as smart pointer
    pointArray.TakeReference(dict.ReleasePtr<vtkFloatArray>());
#if VTK_OPENFOAM_TIME_PROFILING
    this->RequestDataTimeInMicroseconds += io.TimeInMicroseconds;
    this->RequestDataBytes += io.Bytes;
#endif
  }
  catch (const vtkFoamError& err)
  {
    vtkErrorMacro("Mesh points data are neither 32 nor 64 bit, or some other "
                  "parse error occurred while reading points. Failed at line "
      << io.GetLineNumber() << " of " << io.GetFileName() << ": " << err);
#if VTK_OPENFOAM_TIME_PROFILING
    this->RequestDataTimeInMicroseconds += io.TimeInMicroseconds;
    this->RequestDataBytes += io.Bytes;
#endif
    return nullptr;
  }

  assert(pointArray.Get() != nullptr);

  // The number of points