<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2002-2-1 (1.71) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>4.12 PostScript features</TITLE> <META NAME="description" CONTENT="4.12 PostScript features"> <META NAME="keywords" CONTENT="GMT_Docs"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="GMT_Docs.css"> <LINK REL="next" HREF="node65.html"> <LINK REL="previous" HREF="node63.html"> <LINK REL="up" HREF="node30.html"> <LINK REL="next" HREF="node65.html"> </HEAD> <BODY bgcolor="#ffffff"> <!--Navigation Panel--> <A NAME="tex2html3422" HREF="node65.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html3416" HREF="node30.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html3410" HREF="node63.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html3418" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html3420" HREF="node255.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html3423" HREF="node65.html">4.13 Specifying pen attributes</A> <B> Up:</B> <A NAME="tex2html3417" HREF="node30.html">4. General features</A> <B> Previous:</B> <A NAME="tex2html3411" HREF="node63.html">4.11 Output data formats</A> <B> <A NAME="tex2html3419" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html3421" HREF="node255.html">Index</A></B> <BR> <BR> <!--End of Navigation Panel--> <H1><A NAME="SECTION0012120000000000000000"> 4.12 <I>PostScript</I> features</A> </H1> <A NAME="17486"></A> <I>PostScript</I> is a command language for driving graphics devices such as laser printers. It is ASCII text which you can read and edit as you wish (assuming you have some knowledge of the syntax). We prefer this to binary metafile plot systems since such files cannot easily be modified after they have been created. <A NAME="tex2html1131" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> programs also write many comments to the plot file which make it easier for users to orient themselves should they need to edit the file (e.g., % Start of x-axis). All <A NAME="tex2html1132" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> programs create <I>PostScript</I> code by calling the <B>pslib</B> plot library (The user may call these functions from his/her own C or FORTRAN plot programs. See the manual pages for <B>pslib</B> syntax). Although <A NAME="tex2html1133" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> programs can create very individualized plot code, there will always be cases not covered by these programs. Some knowledge of <I>PostScript</I> will enable the user to add such features directly into the plot file. By default, <A NAME="tex2html1134" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> will produce freeform <I>PostScript</I> output with embedded printer directives. To produce Encapsulated <I>PostScript</I> (EPS) that can be imported into graphics programs such as <I>IslandDraw</I><A NAME="18762"></A>, <I>CorelDraw</I><A NAME="18765"></A>, <I>Illustrator</I><A NAME="18768"></A> or <I>Freehand</I><A NAME="18771"></A> for further embellishment, change the <B>PAPER_MEDIA</B> setting in the <U>.gmtdefaults4</U> file. See Appendix <A HREF="node187.html#app:C">C</A> and the <A NAME="tex2html1135" HREF="../man/gmtdefaults.html"><I><B>gmtdefaults</B></I></A><A NAME="18776"></A> man page for more details. <P> <HR> <!--Navigation Panel--> <A NAME="tex2html3422" HREF="node65.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html3416" HREF="node30.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html3410" HREF="node63.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html3418" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html3420" HREF="node255.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html3423" HREF="node65.html">4.13 Specifying pen attributes</A> <B> Up:</B> <A NAME="tex2html3417" HREF="node30.html">4. General features</A> <B> Previous:</B> <A NAME="tex2html3411" HREF="node63.html">4.11 Output data formats</A> <B> <A NAME="tex2html3419" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html3421" HREF="node255.html">Index</A></B> <!--End of Navigation Panel--> <ADDRESS> Paul Wessel 2010-01-14 </ADDRESS> </BODY> </HTML>
