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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> Introduction</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value=" Introduction"><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=tex2html1244 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1250 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1252 HREF="node66.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1254 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node65.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node65.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node65.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1253 HREF="node66.html">1.2 Description of objects</A><B>Up: </B> <A NAME=tex2html1251 HREF="node64.html">1 General introduction</A><B> Prev: </B> <A NAME=tex2html1245 HREF="node64.html">1 General introduction</A><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION05110000000000000000> Introduction</A></H1><P>Designed by the graphics team of INRIA, FORTRAN 3D (or F3D), is a suite of subroutines tovisualize objects in a two or three-dimensional spaceusing different graphics terminals (or drivers) as well as relief images on some of them.<P> It also provides the possibility to introduce the data using input featuresgenerally associated with these terminals.<P>Except for the graphics terminal interfaces (see Chapter <A HREF="node92.html#chap_intern">7</A>, Part III), the suite of programs is written instandard FORTRAN 77, which facilitates its implementation on different computers.<P>Furthermore, a modular structure enables the user to use only that part of FORTRAN 3D which is strictly necessary.<P><P><P>The main ideas of FORTRAN 3D are the following:<UL><LI> Dynamic description of objects, i.e. their description results from the execution of the program.<LI> Dynamic choice of the graphics output terminal.<LI> Dynamic choice of the input mode</UL><P>In addition, the visualization of objects (definition of objects, masks, windows, display conditions, ..)and the introduction of data (see the input programs) are done independently fromthe terminal effectively used.Nevertheless, the programmer can obtain information (see interrogation programs) concerning his/her terminal in order to adapt to it better.<P><P><P>The graphics modules described in Part II of this guide all use F3D as basic, low level, graphics software.<P><P><P><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html1244 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1250 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1252 HREF="node66.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1254 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node65.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node65.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node65.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1253 HREF="node66.html">1.2 Description of objects</A><B>Up: </B> <A NAME=tex2html1251 HREF="node64.html">1 General introduction</A><B> Prev: </B> <A NAME=tex2html1245 HREF="node64.html">1 General introduction</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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