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<H1><A NAME="SECTION040260000000000000000"></A>
<A NAME="commands_splot"></A><A NAME="splot"></A><A NAME="7606"></A>
<BR>
Splot
</H1>
<B>splot</B> is the command for drawing 3D plots (well, actually projections on
a 2D surface, but you knew that). It can create a plot from functions or
data read from files in a manner very similar to the <B>plot</B> command.
<B>splot</B> provides only a single x, y, and z axis; there is no equivalent to the
x2 and y2 secondary axes provided by <B>plot</B>.
<P>
See <B>plot (p. <A HREF="node113.html#plot"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="7612"></A></B> for features common to the <B>plot (p. <A HREF="node113.html#plot"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="7614"></A></B> command; only differences are
discussed in detail here.
<P>
Syntax:
<BR>
<PRE>
splot {<ranges>}
{<iteration>}
<function> | "<datafile>" {datafile-modifiers}}
{<title-spec>} {with <style>}
{, {definitions{,}} <function> ...}
</PRE>
<BR>
<P>
where either a 4#4function5#5 or the name of a data file enclosed in quotes is
supplied. The function can be a mathematical expression, or a triple of
mathematical expressions in parametric mode.
<P>
By default <B>splot</B> draws the xy plane completely below the plotted data.
The offset between the lowest ztic and the xy plane can be changed by <B>set
xyplane</B>. The orientation of a <B>splot</B> projection is controlled by
<B>set view</B>. See <B>set view (p. <A HREF="node285.html#set_view"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="7622"></A></B> and <B>set xyplane (p. <A HREF="node303.html#set_xyplane"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="7624"></A></B> for more information.
<P>
The syntax for setting ranges on the <B>splot</B> command is the same as for
<B>plot</B>. In non-parametric mode, the order in which ranges must be given is
<B>xrange</B>, <B>yrange</B>, and <B>zrange</B>. In parametric mode, the order is <B>urange</B>,
<B>vrange</B>, <B>xrange</B>, <B>yrange</B>, and <B>zrange</B>.
<P>
The <B>title</B> option is the same as in <B>plot</B>. The operation of <B>with</B> is also
the same as in <B>plot</B>, except that the plotting styles available to <B>splot</B>
are limited to <B>lines</B>, <B>points</B>, <B>linespoints</B>, <B>dots</B>, and <B>impulses</B>; the
error-bar capabilities of <B>plot</B> are not available for <B>splot</B>.
<P>
The <B>datafile</B> options have more differences.
<P>
See also <B>show plot (p. <A HREF="node244.html#show_plot"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="7649"></A></B>.
<BR><HR>
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
<UL>
<LI><A NAME="tex2html5996"
HREF="node336.html">Data-file</A>
<UL>
<LI><A NAME="tex2html5997"
HREF="node337.html">Binary matrix</A>
<LI><A NAME="tex2html5998"
HREF="node338.html">Example datafile</A>
<LI><A NAME="tex2html5999"
HREF="node339.html">Matrix_ascii</A>
<LI><A NAME="tex2html6000"
HREF="node340.html">Matrix</A>
</UL>
<BR>
<LI><A NAME="tex2html6001"
HREF="node341.html">Grid data</A>
<LI><A NAME="tex2html6002"
HREF="node342.html">Splot overview</A>
</UL>
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2010-08-17
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