<area shape="rect" id="node2" href="$classitk_1_1SpatialObject.html" title="Implementation of the composite pattern." alt="" coords="19,237,267,267"> <area shape="rect" id="node4" href="$classitk_1_1DataObject.html" title="Base class for all data objects in ITK." alt="" coords="79,160,207,189"> <area shape="rect" id="node6" href="$classitk_1_1Object.html" title="Base class for most itk classes." alt="" coords="95,83,191,112"> <area shape="rect" id="node8" href="$classitk_1_1LightObject.html" title="Light weight base class for most itk classes." alt="" coords="79,5,207,35">