 HREF="#Ruler_1.htm">1 Ruler Features</A><BR>
&nbsp;&nbsp;<A HREF="#Ruler_2.htm">2 Ruler Setup</A><BR>
&nbsp;&nbsp;<A HREF="#Ruler_3.htm">3 VisRuler Instance Data</A><BR>
&nbsp;&nbsp;<A HREF="#Ruler_4.htm">4 Managing Rulers</A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="#Ruler_5.htm">4.1 RulerShowControl</A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="#Ruler_6.htm">4.2 Mouse Tracking</A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="#Ruler_7.htm">4.3 Grid Spacing and Constraint</A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="#Ruler_8.h