Method ComputeNumberOfCellsAndTypes

Testing/GenericBridge/vtkBridgeDataSet.cxx:144–201

------------------------------------------------------------------------------ Description: Compute the number of cells for each dimension and the list of types of cells. \pre implementation_exists: this->Implementation!=0

// cells.
// \pre implementation_exists: this->Implementation!=0
void vtkBridgeDataSet::ComputeNumberOfCellsAndTypes()
{
  unsigned char type;
  vtkIdType cellId;
  vtkIdType numCells;
  vtkCell* c;

  if (this->GetMTime() > this->ComputeNumberOfCellsTime) // cache is obsolete
  {
    numCells = this->GetNumberOfCells();
    this->NumberOf0DCells = 0;
    this->NumberOf1DCells = 0;
    this->NumberOf2DCells = 0;
    this->NumberOf3DCells = 0;

    this->Types->Reset();

    if (this->Implementation != nullptr)
    {
      cellId = 0;
      while (cellId < numCells)
      {
        c = this->Implementation->GetCell(cellId);
        switch (c->GetCellDimension())
        {
          case 0:
            this->NumberOf0DCells++;
            break;
          case 1:
            this->NumberOf1DCells++;
            break;
          case 2:
            this->NumberOf2DCells++;
            break;
          case 3:
            this->NumberOf3DCells++;
            break;
        }
        type = c->GetCellType();
        if (!this->Types->IsType(type))
        {
          this->Types->InsertNextType(type);
        }
        cellId++;
      }
    }

    this->ComputeNumberOfCellsTime.Modified(); // cache is up-to-date
    assert("check: positive_dim0" && this->NumberOf0DCells >= 0);
    assert("check: valid_dim0" && this->NumberOf0DCells <= numCells);
    assert("check: positive_dim1" && this->NumberOf1DCells >= 0);
    assert("check: valid_dim1" && this->NumberOf1DCells <= numCells);
    assert("check: positive_dim2" && this->NumberOf2DCells >= 0);
    assert("check: valid_dim2" && this->NumberOf2DCells <= numCells);
    assert("check: positive_dim3" && this->NumberOf3DCells >= 0);
    assert("check: valid_dim3" && this->NumberOf3DCells <= numCells);
  }
}