1<map id="QwtDialSimpleNeedle" name="QwtDialSimpleNeedle"> 2<area shape="rect" id="node1" title="A needle for dial widgets." alt="" coords="5,80,156,107"/> 3<area shape="rect" id="node2" href="$class_qwt_dial_needle.html" title="Base class for needles that can be used in a QwtDial." alt="" coords="25,5,136,32"/> 4</map> 5