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<TITLE>ELLIPSE command: ellipse explicitly defined </TITLE>
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<P><font size="+3" color="green"><B>Ellipse explicitly defined</B></font></P>
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<TD width="15%" valign="top"><B>Syntax</B>:</TD>
<TD width="85%" valign="top"><CODE>
ELLIPSE a b xc yc angle<br />
ELLIPSE\POPULATE a b xc yc angle<br />
ELLIPSE\POPULATE\NPTS a b xc yc angle n<br />
ELLIPSE\POPULATE\XYOUT a b xc yc angle xout yout<br />
ELLIPSE\POPULATE\XYOUT\NPTS a b xc yc angle n xout yout</CODE>
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<p>
By default, the input parameters are assumed to be scalars representing the
major axis radius, <CODE>a</CODE>, the minor axis radius, <CODE>b</CODE>, the coordinates of the centre,
<CODE>cx</CODE> and <CODE>cy</CODE>, and the angle of the ellipse, <CODE>angle</CODE>, in degrees, measured
counter-clockwise from the horizontal.</p>
<h3>Parameter order</h3>
<p>
The order in which the qualifiers appear is irrelevant. The order in which the
command parameters appear is fixed:
<CODE>a b xc yc angle { npts } { xout yout }</CODE></p>
<P>
<a href="npoints.htm"><img src="../shadow_left.gif">
<font size="+1" color="olive">Number of points</font></a><br />
<a href="fit.htm"><img src="../shadow_right.gif">
<font size="+1" color="olive">Fit an ellipse</font></a></P>
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