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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>1.4 Displaying the image and managing the screen</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="1.4 Displaying the image and managing the screen"><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=tex2html1277 HREF="node67.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1283 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1285 HREF="node69.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1287 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node68.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node68.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node68.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1286 HREF="node69.html">1.5 Input management</A><B>Up: </B> <A NAME=tex2html1284 HREF="node64.html">1 General introduction</A><B> Prev: </B> <A NAME=tex2html1278 HREF="node67.html">1.3 Visualization of objects</A><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION05140000000000000000>1.4 Displaying the image and managing the screen</A></H1><P><P><P>To begin with, it is necessary to specify the screen on which we wish to produce the image. Then, havingdefined a visualization mode and described the object, its graphical representation will appear on the screen.<P>To complete the lay-out, the user can define the portion of the visualization surface on which he/she wishes to produce the plot. The user can also define several visualization windows in which he/she will be able to plotindependent objects.<P>To ensure independence between terminals, the image is produced conceptuallyon a type of <i> virtual screen</i> before being displayed. Consequently, using FORTRAN 3D, it is possible to write directly onto this surface to ensure that the lay-out of the imageis desirable. Certain applications can only use this part of FORTRAN 3D.<P>Lastly, to facilitate the programming and improve the program's efficiency, FORTRAN 3D incorporates the possibility of dividing the screen into segments. The programmer can thus regroup certainparts of the image in the form of segments that he/she can either display or switch off, highlight or delete. This possibility is only effective if an appropriate graphics terminal is used.<P><P><P><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html1277 HREF="node67.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1283 HREF="node64.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1285 HREF="node69.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1287 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node68.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node68.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node68.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1286 HREF="node69.html">1.5 Input management</A><B>Up: </B> <A NAME=tex2html1284 HREF="node64.html">1 General introduction</A><B> Prev: </B> <A NAME=tex2html1278 HREF="node67.html">1.3 Visualization of objects</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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