<!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>4.1 GMT units</TITLE> <META NAME="description" CONTENT="4.1 GMT units"> <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="node33.html"> <LINK REL="previous" HREF="node31.html"> <LINK REL="up" HREF="node31.html"> <LINK REL="next" HREF="node33.html"> </HEAD> <BODY bgcolor="#ffffff"> <!--Navigation Panel--> <A NAME="tex2html2987" HREF="node33.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html2981" HREF="node31.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html2975" HREF="node31.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html2983" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html2985" HREF="node256.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html2988" HREF="node33.html">4.2 GMT defaults</A> <B> Up:</B> <A NAME="tex2html2982" HREF="node31.html">4. General features</A> <B> Previous:</B> <A NAME="tex2html2976" HREF="node31.html">4. General features</A> <B> <A NAME="tex2html2984" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html2986" HREF="node256.html">Index</A></B> <BR> <BR> <!--End of Navigation Panel--> <H1><A NAME="SECTION001210000000000000000"> 4.1 </A><A NAME="tex2html1063" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> units </H1> <A NAME="17261"></A> <A NAME="17262"></A> <A NAME="17263"></A> <P> <A NAME="tex2html1067" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> programs can accept dimensional quantities in <B>c</B>m, <B>i</B>nch, <B>m</B>eter, or <B>p</B>oint (1/72 of an inch)<A NAME="tex2html1065" HREF="footnode.html#foot17268"><SUP>4.1</SUP></A>. There are two ways to ensure that <A NAME="tex2html1068" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> understands which unit you intend to use. <P> <OL> <LI>Append the desired unit to the dimension you supply. This way is explicit and clearly communicates what you intend, e.g., <B>-X</B>4<B>c</B> means the length being passed to the <B>-X</B> switch is 4 cm. <P> </LI> <LI>Set the parameter <B>MEASURE_UNIT</B> to the desired unit. Then, all dimensions without explicit unit will be interpreted accordingly. <P> </LI> </OL> <P> The latter method is less secure as other users may have a different unit set and your script may not work as intended. We therefore recommend you always supply the desired unit explicitly. <A NAME="17275"></A> <A NAME="17276"></A> <A NAME="17277"></A> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html2987" HREF="node33.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html2981" HREF="node31.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html2975" HREF="node31.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html2983" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html2985" HREF="node256.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html2988" HREF="node33.html">4.2 GMT defaults</A> <B> Up:</B> <A NAME="tex2html2982" HREF="node31.html">4. General features</A> <B> Previous:</B> <A NAME="tex2html2976" HREF="node31.html">4. General features</A> <B> <A NAME="tex2html2984" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html2986" HREF="node256.html">Index</A></B> <!--End of Navigation Panel--> <ADDRESS> Paul Wessel 2010-07-14 </ADDRESS> </BODY> </HTML>