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<HTML>
<HEAD>
<TITLE>Polar plot</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<P><font size="+2" color="green">Polar plot</font></P>
<TABLE border="1" cols="2" frame="box" rules="all" width="572">
<TR>
<TD width="15%" valign="top"><B>Syntax</B>:</TD>
<TD width="85%" valign="top"><CODE>
GRAPH\POLAR r theta<br />
GRAPH\RADAR r theta</CODE>
</TD></TR>
<TR>
<TD valign="top"><B>Qualifiers:</B></TD>
<TD valign="top"><CODE>\AXESONLY, \OVERLAY</CODE>
</TD></TR>
<TR>
<TD valign="top"><B>Defaults:</B></TD>
<TD valign="top">axes drawn
</TD></TR>
<TR>
<TD valign="top"><B>Examples:</B></TD>
<TD valign="top"><CODE>
GRAPH\POLAR R THETA<BR />
GRAPH\POLAR\OVERLAY R2 T2<br />
GRAPH\RADAR\AXESONLY R T</CODE>
</TD></TR></TABLE>
<P>
If either the <CODE>\POLAR</CODE> qualifier or the <code>\RADAR</code> qualifier is used, the input variables,
<CODE>r</CODE> and <CODE>theta</CODE>, are assumed to represent polar coordinates, where <CODE>r</CODE>
contains the radial components and <CODE>theta</CODE> contains the angular components, in degrees.</p>
<P>
A polar plot is always autoscaled. The radial axis at 0<sup>°</sup> always has a minimum value of zero.
The maximum value of the radial axis is determined by the data. All 360<sup>°</sup> are always displayed.
By default, four radial axes are drawn, but any number of axes can be drawn using
the <code><a href="../Characteristics/Polar/naxes.htm">POLARNAXES</a></code> characteristic. Only the
radial axis at 0<sup>°</sup> can have numeric labels and the optional text label. Circular grid
lines can be drawn, and are controlled by the
<CODE><A HREF="../Characteristics/Polar/grid.htm">POLARGRID</A></CODE> characteristic.</p>
<p>
The location of the origin of the polar plot is controlled by the
<code><a href="../Characteristics/Polar/xorigin.htm">POLARORIGINX</a></code> and
<code><a href="../Characteristics/Polar/yorigin.htm">POLARORIGINY</a></code> characteristics, and the
length of the radial axis is controlled by the
<code><a href="../Characteristics/Polar/axislength.htm">POLARAXISLENGTH</a></code> characteristic.</p>
<p>
Use the <code>\POLAR</code> qualifier if you would like 0<sup>°</sup> to be horizontal through
the origin. Use the <code>\RADAR</code> qualifier if you would like 0<sup>°</sup> to be vertical.
<img src="polarradar.png"></p>
<p>
The user has control over the polar plot by means of the
<a href="../Characteristics/Polar/polarchar.htm">Polar Characteristics</a>.</p>
<P>
<a href="graphcommand.htm"><img src="../shadow_left.gif">
<font size="+1" color="olive">GRAPH command</font></a><br />
<a href="plotsymbol.htm"><img src="../shadow_right.gif">
<font size="+1" color="olive">Plotting symbols</font></a></P>
</BODY>
</HTML>
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