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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.2 Final//FR"><!-- Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) --><!-- by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --><!-- Modified Simulog 03/97 --><HTML><HEAD><TITLE>1.1 Geometric transformations</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="1.1 Geometric transformations"><meta name="keywords" value="Guide6"><meta name="resource-type" value="document"><meta name="distribution" value="global"></HEAD><BODY BGCOLOR="#FFFFFF"><P> <IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html565 HREF="node6.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html571 HREF="node6.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html573 HREF="node8.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html575 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node7.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node7.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node7.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html574 HREF="node8.html">1.2 Changing the finite element type</A><B>Up: </B> <A NAME=tex2html572 HREF="node6.html">1 Mesh manipulation</A><B> Prev: </B> <A NAME=tex2html566 HREF="node6.html">1 Mesh manipulation</A><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION03210000000000000000>1.1 Geometric transformations</A></H1><P><P><P>Preprocessors <b> APNOXX</b> and <b> APN3XX</b>, described in [<A HREF="node109.html#guide3"><A NAME=tex2html335 HREF="../Guide3/welcome.html">MODULEF User Guide - 3</A></A>], are used to construct a mesh obtained via the geometric transformation of an existing mesh.These transformations only apply to P1 meshes.<P>In the case of an elasticity problem, preprocessor <b> DEFNXX</b>, which calls moduleDEFNOP, is used to construct a D.S. <b> NOPO</b> from the D.S. <b> NOPO</b> containing theinitial mesh and the D.S. <b> B</b> containing the displacements. This consists of adding the displacements, multiplied by a given factor, to thecorresponding nodal coordinates. In this case we consider only finite elements with aconstant number of degrees of freedom per node, where the first NDIM degrees offreedom correspond to the displacements.<P><P><P><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html565 HREF="node6.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html571 HREF="node6.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html573 HREF="node8.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html575 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node7.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node7.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node7.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html574 HREF="node8.html">1.2 Changing the finite element type</A><B>Up: </B> <A NAME=tex2html572 HREF="node6.html">1 Mesh manipulation</A><B> Prev: </B> <A NAME=tex2html566 HREF="node6.html">1 Mesh manipulation</A><B><A HREF="node2.html" >Contents</A></B><BR> <HR><P><ADDRESS></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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