a cube in a xwindow.
</DD>
</DL>
<BR>
<BR>

<P>

<A NAME="37104"></A>
<B>draw-axis</B> <EM>[viewer] [size] &amp;rest thing </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
draws coordinate-axes of <EM>thing</EM>s in <EM>viewer</EM> with <EM>size</EM>
as the length of each coordinates-axis.
<EM>Thing</EM> can be any object derived from coordinates.
</DD>
</DL>
<BR>
<BR>

<P>

<A NAME="37118"></A>
<B>draw-arrow</B> <EM>p1 p2 </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
draws an arrow pointing from p1 to p2 in <TT>*view