Implementation of a cell filter based on a cell bounding box.
All cells that are contained within the given cell bounding box are selected by this filter. The cell bounding box is always given in global cell coordinates and only acts on blocks on level "level_" (default=0).
All cells (in block local cell coordinates!) that are contained within the given cell bounding box (this cell bounding box is given in global cell coordinates!) are inserted into the set "filteredCells", thereby marking these cells.
For more details on cell filters and including cells in and excluding cells from the VTK output, see the documentation of class VTKOutput. Attention: If the specified level "level_" does not match with the level the block resides on, no cells are selected.