Method GenerateSubset

IO/IOSS/vtkIOSSReaderInternal.cxx:263–313

}

vtkIOSSReaderInternal::DatabaseNamesType vtkIOSSReaderInternal::GenerateSubset(
  const vtkIOSSReaderInternal::DatabaseNamesType& databases, vtkIOSSReader* self)
{
  int fileRange[2];
  self->GetFileRange(fileRange);
  const int stride = self->GetFileStride();
  if (fileRange[0] >= fileRange[1] || stride < 1 || databases.empty())
  {
    return databases;
  }

  // We need to filter filenames.
  DatabaseNamesType result = databases;
  for (auto& pair : result)
  {
    auto& dbaseInfo = pair.second;
    if (dbaseInfo.ProcessCount <= 0)
    {
      continue;
    }

    // remove all "ranks" not fitting the requested range.
    for (auto iter = dbaseInfo.Ranks.begin(); iter != dbaseInfo.Ranks.end();)
    {
      const int rank = (*iter);
      if ((rank < fileRange[0] || rank >= fileRange[1] || (rank - fileRange[0]) % stride != 0))
      {
        iter = dbaseInfo.Ranks.erase(iter);
      }
      else
      {
        ++iter;
      }
    }
  }

  // remove any databases which have no ranks to be read in.
  for (auto iter = result.begin(); iter != result.end();)
  {
    auto& dbaseInfo = iter->second;
    if (dbaseInfo.ProcessCount > 0 && dbaseInfo.Ranks.empty())
    {
      iter = result.erase(iter);
    }
    else
    {
      ++iter;
    }
  }
  return result;
}

bool vtkIOSSReaderInternal::UpdateTimeInformation(vtkIOSSReader* self)
{