09">
 </A>
Depending on how much experience you have with the GEOS graphics system, you may have some idea already about what sorts of shapes can be drawn and the ways to draw them. Most of these commands have names like <CODE>
GrDrawShape()</CODE>
 or<CODE>
 GrFillShape()</CODE>
 (e.g. <CODE>
GrDrawRect()</CODE>
, <CODE>
GrFillEllipse()</CODE>
). Normally, a command of the form <CODE>
GrDrawShape()</CODE>
 draws the outline of a shape, while <CODE>
GrFillShape()</CODE>
 fills in the interior of the shape. 