Method ReadDisplacementFile

IO/Geometry/vtkBYUReader.cxx:262–308

}

void vtkBYUReader::ReadDisplacementFile(int numPts, vtkInformation* outInfo)
{
  FILE* dispFp;
  int i;
  float v[3];
  vtkFloatArray* newVectors;
  vtkPolyData* output = vtkPolyData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));

  if (this->ReadDisplacement && this->DisplacementFileName)
  {
    if (!(dispFp = vtksys::SystemTools::Fopen(this->DisplacementFileName, "r")))
    {
      vtkErrorMacro(<< "Couldn't open displacement file");
      return;
    }
  }
  else
  {
    return;
  }
  //
  // Allocate and read data
  //
  newVectors = vtkFloatArray::New();
  newVectors->SetNumberOfComponents(3);
  newVectors->SetNumberOfTuples(numPts);

  for (i = 0; i < numPts; i++)
  {
    auto resultDisp = vtk::scan<float, float, float>(dispFp, "{} {} {}");
    if (!resultDisp)
    {
      vtkErrorMacro(<< "Error reading displacement file: " << this->DisplacementFileName
                    << "Message: " << resultDisp.error().msg());
      fclose(dispFp);
      return;
    }
    std::tie(v[0], v[1], v[2]) = resultDisp->values();
    newVectors->SetTypedTuple(i, v);
  }

  fclose(dispFp);
  vtkDebugMacro(<< "Read " << numPts << " displacements");

  output->GetPointData()->SetVectors(newVectors);
  newVectors->Delete();
}

void vtkBYUReader::ReadScalarFile(int numPts, vtkInformation* outInfo)
{