<OL>
<LI>the starting point of the arc,<BR><BR></LI>
<LI>the midpoint of the circle containing the arc and<BR><BR></LI>
<LI>a third point to state where the arc should end: it will run until it reaches the ray that starts in the midpoint and runs through this third point.</LI>
</OL>

<P>Arcs are always drawn with mathematically positive orientation.</P>
<br>

<P><font color="#FF0000"><b><i>Please note:</i></b></font>
<ul>You cannot reflect an arc in a line just by mirroring the 3 defining points and then cr