Commands with names like <CODE>
GrSetAttribute()</CODE>
 (e.g. <CODE>
GrSetAreaColor()</CODE>
) change the color, fill pattern, and other attributes of shapes to be drawn. Most of these commands are passed a GState. The drawing commands are also passed coordinates at which to draw.</P>
<P>
For many of these commands, there are GString opcodes which represent the command in a GString. Also, the arguments used when drawing these shapes often correspond to instance data specific to the Graphic Object which dra