Method CopyOrUpdateAttributeRecord

Common/DataModel/vtkCellGridCopyQuery.cxx:227–311

}

vtkCellAttribute* vtkCellGridCopyQuery::CopyOrUpdateAttributeRecord(
  vtkCellAttribute* srcAtt, vtkStringToken cellType)
{
  // If we already have the attribute, use it.  Otherwise, create it.
  vtkCellAttribute* targetAttribute = nullptr;
  auto amit = this->AttributeMap.find(srcAtt);
  if (amit == this->AttributeMap.end())
  {
    // We need to create the attribute.
    vtkNew<vtkCellAttribute> tgtAtt;
    tgtAtt->ShallowCopy(srcAtt, /* do not copy arrays for cell types*/ false);
    targetAttribute = tgtAtt;

    // Copy cached range data if we are copying cells.
    if (this->GetCopyCells() && this->GetCopyArrayValues())
    {
      const auto& srcRange = this->Source->GetRangeCache();
      auto& tgtRange = this->Target->GetRangeCache();

      auto cacheIt = srcRange.find(srcAtt);
      if (cacheIt != srcRange.end())
      {
        tgtRange[tgtAtt].resize(tgtAtt->GetNumberOfComponents() + 2);
        std::size_t ii = 0;
        for (const auto& componentRange : cacheIt->second)
        {
          if (componentRange.FiniteRangeTime > srcAtt->GetMTime())
          {
            tgtRange[tgtAtt][ii].FiniteRange = cacheIt->second[ii].FiniteRange;
            tgtRange[tgtAtt][ii].FiniteRangeTime.Modified();
          }
          if (componentRange.EntireRangeTime > srcAtt->GetMTime())
          {
            tgtRange[tgtAtt][ii].EntireRange = cacheIt->second[ii].EntireRange;
            tgtRange[tgtAtt][ii].EntireRangeTime.Modified();
          }
          ++ii;
        }
      }
    }

    this->Target->AddCellAttribute(tgtAtt);
    this->AttributeMap[srcAtt] = tgtAtt;
    if (this->Source->GetShapeAttribute() == srcAtt)
    {
      this->Target->SetShapeAttribute(tgtAtt);
    }
  }
  else
  {
    targetAttribute = amit->second;
  }

  if (!this->CopyCellTypes)
  {
    return targetAttribute;
  }