<area shape="rect" href="$a00507.html" title="extract levels between min and max from a hierarchical box dataset." alt="" coords="69,304,184,331"> <area shape="rect" href="$a00689.html" title="superclass for algorithms that produce vtkHierarchicalBoxDataSet as output." alt="" coords="5,230,248,256"> <area shape="rect" href="$a00101.html" title="Superclass for all sources, filters, and sinks in VTK." alt="" coords="77,155,176,182"> <area shape="rect" href="$a01084.html" title="abstract base class for most VTK objects" alt="" coords="87,80,167,107"> <area shape="rect" href="$a01085.html" title="abstract base class for most VTK objects" alt="" coords="72,6,181,32">