<map id="QwtNullPaintDevice" name="QwtNullPaintDevice">
<area shape="rect" id="Node000001" title="A null paint device doing nothing." alt="" coords="5,79,145,104"/>
<area shape="rect" id="Node000003" href="$class_qwt_graphic.html" title="A paint device for scalable graphics." alt="" coords="30,152,121,177"/>
<area shape="poly" id="edge2_Node000001_Node000003" title=" " alt="" coords="78,118,78,152,73,152,73,118"/>
<area shape="rect" id="Node000002" title=" " alt="" coords="24,5,127,31"/>
<area shape="poly" id="edge1_Node000001_Node000002" title=" " alt="" coords="78,44,78,79,73,79,73,44"/>
</map>
