r>
	<tr>
	<td class="name" nowrap><a href="#line">line (x, y)</a></td>
	<td class="summary">draw line to specified point.</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#line_rel">line_rel (x, y)</a></td>
	<td class="summary">draw line to specified point relative to current position.</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#arc">arc (x, y, r, angle1, angle2)</a></td>
	<td class="summary">draw arc.</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#circle">circle (x, y, r)</a></td>
	<td cl