Method SetupBlockRequest

IO/AMR/vtkAMRBaseReader.cxx:262–299

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkAMRBaseReader::SetupBlockRequest(vtkInformation* outInf)
{
  assert("pre: output information is nullptr" && (outInf != nullptr));

  if (outInf->Has(vtkCompositeDataPipeline::UPDATE_COMPOSITE_INDICES()))
  {
    assert("Metadata should not be null" && (this->Metadata != nullptr));
    this->ReadMetaData();

    int size = outInf->Length(vtkCompositeDataPipeline::UPDATE_COMPOSITE_INDICES());
    int* indices = outInf->Get(vtkCompositeDataPipeline::UPDATE_COMPOSITE_INDICES());

    this->BlockMap.clear();
    this->BlockMap.resize(size);

    for (int i = 0; i < size; ++i)
    {
      this->BlockMap[i] = indices[i];
    }
  }
  else
  {
    this->ReadMetaData();

    this->BlockMap.clear();
    int maxLevel = this->MaxLevel < static_cast<int>(this->Metadata->GetNumberOfLevels()) - 1
      ? this->MaxLevel
      : this->Metadata->GetNumberOfLevels() - 1;
    for (int level = 0; level <= maxLevel; level++)
    {
      for (unsigned int id = 0; id < this->Metadata->GetNumberOfBlocks(level); id++)
      {
        int index = this->Metadata->GetAbsoluteBlockIndex(static_cast<unsigned int>(level), id);
        this->BlockMap.push_back(index);
      }
    }
  }
}

//------------------------------------------------------------------------------
void vtkAMRBaseReader::GetAMRData(int blockIdx, vtkUniformGrid* block, const char* fieldName)