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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>3.4.2 Description of the input data</TITLE><LINK REL=STYLESHEET TYPE="text/css"	HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="3.4.2 Description of the input data"><meta name="keywords" value="Guide3"><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=tex2html1603 HREF="node60.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif"	ALT="previous"></A><A NAME=tex2html1609 HREF="node59.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif"	ALT="up"></A><A NAME=tex2html1611 HREF="node62.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif"	ALT="next"></A><A NAME=tex2html1613 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif"	ALT="contents"></A><A NAME=tex2html1614 HREF="node28.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/index_motif.gif"	ALT="index"></A><A HREF="../Guide3-18/node61.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM	ALT="[BIG]"></A><A HREF="../Guide3-14/node61.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM	ALT="[Normal]"></A><A HREF="../Guide3-10/node61.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM	ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1612 HREF="node62.html">3.4.3 Calling of module GEL3D1</A><B>Up: </B> <A NAME=tex2html1610 HREF="node59.html">3.4 Method for a hexahedral topology</A><B> Prev: </B> <A NAME=tex2html1604 HREF="node60.html">3.4.1 Quick description of the method</A><B><A HREF="node28.html"	>Index</A></B><B><A HREF="node2.html"	>Contents</A></B><HR SIZE=3 WIDTH="75&#37;"><H2><A NAME=SECTION00642000000000000000>3.4.2 Description of the input data</A></H2><P>This mesh generator requires all the information defining the 3 point distributions as input data.<P>The efficiency of the method results from the numerous possibilities offered to define the vertex coordinates.A vertex being known via its three indices i, j, k, it suffices to input the following data, in  accordance tothe case under consideration (see lower down):<P><UL><LI> Elements with constant step in one, two or three  directions: the step(s) correspond(s) to thespacing of the points in this/these direction(s);<LI> Elements with variable step in one or several directions:  the corresponding steps in the form of a table;<LI> Arbitrary elements:  the point positions in the form of an array or functions;<LI> Mixed elements: an adequate combination of steps, arrays or useful functions.</UL><P>The face, edge and point references  of the mesh created are defined from their position (indicesi, j, k), in the same way as the sub-domain numbers of the elements created (see further down).<P><HR SIZE=3 WIDTH="75&#37;"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM	ALT="Modulef"><A NAME=tex2html1603 HREF="node60.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif"	ALT="previous"></A><A NAME=tex2html1609 HREF="node59.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif"	ALT="up"></A><A NAME=tex2html1611 HREF="node62.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif"	ALT="next"></A><A NAME=tex2html1613 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif"	ALT="contents"></A><A NAME=tex2html1614 HREF="node28.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/index_motif.gif"	ALT="index"></A><A HREF="../Guide3-18/node61.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM	ALT="[BIG]"></A><A HREF="../Guide3-14/node61.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM	ALT="[Normal]"></A><A HREF="../Guide3-10/node61.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM	ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1612 HREF="node62.html">3.4.3 Calling of module GEL3D1</A><B>Up: </B> <A NAME=tex2html1610 HREF="node59.html">3.4 Method for a hexahedral topology</A><B> Prev: </B> <A NAME=tex2html1604 HREF="node60.html">3.4.1 Quick description of the method</A><B><A HREF="node28.html"	>Index</A></B><B><A HREF="node2.html"	>Contents</A></B><BR> <HR><P><ADDRESS></ADDRESS></BODY></HTML>
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