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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
* Ajouter ici d'ventuels commentaires sur le fichier XML
-->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns5="http://www.w3.org/1999/xhtml" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" version="5.0-subset Scilab" xml:id="mesh" xml:lang="en">
<info>
<pubdate>$LastChangedDate: 26-05-2009 $</pubdate>
</info>
<refnamediv>
<refname>mesh</refname>
<refpurpose>Display 3-D mesh surface</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>hdl = mesh(X,Y,Z)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameter</title>
<variablelist>
<varlistentry>
<term>X</term>
<listitem>
<para>1 by m matrix or n by m matrix</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Y</term>
<listitem>
<para>1 by n matrix or n by m matrix</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Z</term>
<listitem>
<para>n by m matrix</para>
</listitem>
</varlistentry>
<varlistentry>
<term>hdl</term>
<listitem>
<para>Handle of the created Fac3d entity</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>mesh(x,y,Z) plots the colored parametric or non parametric mesh
defined by three arguments. The view point is specified by the 'view'
property (see below).</para>
<para>The axis labels are determined by the range of X, Y and Z, or by a
'axis' property setting. The color of edges and faces is by default
respectively foreground/background and can be changed by the properties
'edgecolor' and 'facecolor'.</para>
<para>When x,y and Z are matrices of the same size, surfl(x,y,Z) plots the
parametric surface defined by vertices (x(i,j), y(i,j), Z(i,j)).</para>
<para>When x,y are vector arguments you must have length(x) = m and
length(y) = n where [n,m] = size(Z).In this case, the vertices of the mesh
lines are the triples (x(j), y(i), Z(i,j)). Note that x corresponds to the
columns of Z and y corresponds to the rows, example :</para>
<programlisting>x=linspace(-1,1,20);
y=linspace(-2,2,40);
Z=cos(y'*x);
mesh(x,y,Z);
</programlisting>
<para>Note that mesh(Z) use x = 1:m and y = 1:n. </para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example">
[u,v]=meshgrid(linspace(0,%pi,30),linspace(0,%pi,30));
mesh(sin(v).*cos(u),sin(v).*sin(u),cos(v),'edgecolor','blue');
hold on
mesh(sin(v).*cos(u),1-sin(v).*sin(u),cos(v),'edgecolor','red');
hold off
axis equal
axis([-1 1 -1 2 -1 1])
</programlisting>
</refsection>
<refsection>
<title>Screenshot</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="mesh.png" format=""/>
</imageobject>
</mediaobject>
</screenshot>
</refsection>
<refsection>
<title>See Also</title>
<simplelist type="inline">
<member>
<link linkend="plot">plot</link>
</member>
<member>
<link linkend="plot3">plot3</link>
</member>
<member>
<link linkend="surf">suf</link>
</member>
<member>
<link linkend="surfl">surfl</link>
</member>
</simplelist>
</refsection>
<refsection>
<title>Authors</title>
<simplelist type="vert">
<member>Stphane Mottelet</member>
</simplelist>
</refsection>
</refentry>
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