<area shape="rect" href="$a01877.html" title="abstract class defines interface between the widget and widget representation classes..." alt="" coords="24,229,197,256"> <area shape="rect" href="$a01317.html" title="abstract superclass for all actors, volumes and annotations" alt="" coords="76,155,145,181"> <area shape="rect" href="$a01084.html" title="abstract base class for most VTK objects" alt="" coords="71,80,151,107"> <area shape="rect" href="$a01085.html" title="abstract base class for most VTK objects" alt="" coords="56,5,165,32">