Function vtkMergeTable

Filters/Parallel/vtkPExtractDataArraysOverTime.cxx:23–67

namespace
{
vtkSmartPointer<vtkTable> vtkMergeTable(vtkTable* dest, vtkTable* src)
{
  if (dest == nullptr)
  {
    return src;
  }

  const auto numRows = dest->GetNumberOfRows();
  if (numRows != src->GetNumberOfRows())
  {
    return dest;
  }

  auto srcRowData = src->GetRowData();
  auto destRowData = dest->GetRowData();
  auto srcMask = vtkUnsignedCharArray::SafeDownCast(srcRowData->GetArray("vtkValidPointMask"));
  for (vtkIdType cc = 0; srcMask != nullptr && cc < numRows; ++cc)
  {
    if (srcMask->GetTypedComponent(cc, 0) == 0)
    {
      continue;
    }

    // Copy arrays from remote to current
    const int numArray = srcRowData->GetNumberOfArrays();
    for (int aidx = 0; aidx < numArray; aidx++)
    {
      auto srcArray = srcRowData->GetAbstractArray(aidx);
      if (const char* name = srcArray ? srcArray->GetName() : nullptr)
      {
        auto destArray = destRowData->GetAbstractArray(name);
        if (destArray == nullptr)
        {
          // add new array array if necessary
          destRowData->AddArray(destArray);
        }
        else
        {
          destArray->InsertTuple(cc, cc, srcArray);
        }
      }
    }
  }
  return dest;
}
}

vtkStandardNewMacro(vtkPExtractDataArraysOverTime);