cogtest.html

有限元学习研究用源代码(老外的),供科研人员参考

<TITLE>COG 1.0 - Default Cogeometry</TITLE>

<H1><A HREF="cog.html">COG 1.0</A>: Default Cogeometry
Construction</H1>

 <P>This file defines the default cogeometry. 

 <P>You can replace this default code by other test cogeometries with
the following command:

 <P>&gt; use cog <B>opt</B>

 <P>Here, <B>opt</B> denotes one of the following options:

 <UL>
 <LI> without option, this default will be recovered. Moreover, you
see the actual list of options. Mail me if the list below is invalid;
 <LI> <A HREF="cogregiontest.html">region</A> by user-defined
function which defines the region containing a given point;
 <LI> <A HREF="cogfacetest.html">face</A> subdivides boundary faces;
 <LI> <A HREF="cognonetest.html">none</A> for the trivial cogeometry;
 <LI> <A HREF="cog1dtest.html">1d</A> planes in x-direction;
 <LI> <A HREF="cogfunctiontest.html">function</A> by user-defined real function;
 <LI> <A HREF="cogmaptest.html">map</A> modification by a user-defined
transformation;
 <LI> <A HREF="cogellipsetest.html">ellipse</A>;
 <LI> <A HREF="cogtorustest.html">torus</A>;
 <LI> <A HREF="cogplanetest.html">plane</A> in skew directions;
 <LI> <A HREF="cogelevationtest.html">elevation</A> by some elevation table;
 <LI> <A HREF="cogboxtest.html">box</A> 1D continuation outside the box;
 <LI> <A HREF="cogperiodictest.html">periodic</A> periodic continuation;
 <LI> <A HREF="cogintersectiontest.html">intersection</A> - minimum of
region numbers;
 <LI> <A HREF="coguniontest.html">union</A> - maximum of region numbers;
 <LI> <A HREF="cogsplittest.html">split</A> of one region into parts
described by another cogeometry;
 <LI> <A HREF="cogoverlaytest.html">overlay</A> of one region over the
background of another cogeometry;
 <LI> <A HREF="cogcornertest.html">corner</A>;
 </UL>

 <P>You can also replace the arguments used by some of them (like
intersection). See argument
 <A HREF="cog1test.html">1</A> and
 <A HREF="cog2test.html">2</A>.

 <P>You can also test your own cogeometries. To add an option xxx
you simply have to write the file "cogxxxtest.html" following the
conventions of the other files "cog*test.html".  That's easy if you
start with one of these files as a pattern.

 <P>We use a <A HREF="cogellipsetest.html">simple sphere</A> as the
default cogeometry.

<PRE>
#include "<A HREF="cogsimple.cxx">cogsimple.hxx</A>"
cogeometry test_cogeometry()
{
 CogeometryEllipsoid *s=new CogeometryEllipsoid(wzRegion(2),wzRegion(1)); 
 s-&gt;setCenter(0.0,0.0,0.0);
 s-&gt;setRadius(0.9,0.9,0.9);
 return s;
}
</PRE>