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<html>
<head>
<title>EAGLE Help: UL_ARC</title>
</head>
<body bgcolor=white>
<font face=Helvetica,Arial>
<hr>
<i>EAGLE Help</i>
<h1><center>UL_ARC</center></h1>
<hr>
<b>Data members</b>
<p>
<table>
<tr><td valign=top><font face=Helvetica,Arial><tt>angle1</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=157.htm>real</a> (start angle, <tt>0.0</tt>...<tt>359.9</tt>)</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>angle2</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=157.htm>real</a> (end angle, <tt>0.0</tt>...<tt>719.9</tt>)</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>cap</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a> (CAP_...)</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>layer</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a></font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>radius</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a></font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>width</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a></font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>x1, y1</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a> (starting point)</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>x2, y2</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a> (end point)</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>xc, yc</tt> </font></td><td valign=top><font face=Helvetica,Arial><a href=156.htm>int</a> (center point)</font></td></tr>
</table>
<p>
<b>Constants</b>
<p>
<table>
<tr><td valign=top><font face=Helvetica,Arial><tt>CAP_FLAT</tt> </font></td><td valign=top><font face=Helvetica,Arial>flat arc ends</font></td></tr>
<tr><td valign=top><font face=Helvetica,Arial><tt>CAP_ROUND</tt> </font></td><td valign=top><font face=Helvetica,Arial>round arc ends</font></td></tr>
</table>
<p>
<b>See also</b> <a href=196.htm>UL_WIRE</a>
<p>
<b>Note</b>
<p>
Start and end angles are defined mathematically positive (i.e. counterclockwise),
with <tt>angle1</tt> < <tt>angle2</tt>.
In order to assure this condition, the start and end point of an UL_ARC may exchanged
with respect to the UL_WIRE the arc has been derived from.
<p>
<b>Example</b>
<pre>
board(B) {
B.wires(W) {
if (W.arc)
printf("Arc: (%d %d), (%d %d), (%d %d)\n",
W.arc.x1, W.arc.y1, W.arc.x2, W.arc.y2, W.arc.xc, W.arc.yc);
}
}
</pre>
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