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<H1><A NAME="SECTION001120000000000000000">
3.2 </A><A NAME="tex2html158"
HREF="http://www.soest.hawaii.edu/gmt"><B>GMT</B></A> quick reference
</H1>
<A NAME="1081"></A>
<A NAME="sec:purpose"></A>Instead of an alphabetical listing, this section contains a summary
sorted by program purpose. Also included is a quick summary of the
standard command line options and a breakdown of the <B>-J</B> option
for each of the 25 map projections available in <A NAME="tex2html222"
HREF="http://www.soest.hawaii.edu/gmt"><B>GMT</B></A>.
<BR>
<P>
<DIV ALIGN="CENTER">
</DIV>
<P>
<DIV ALIGN="CENTER"><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=2>FILTERING OF 1-D AND 2-D DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html160"
HREF="../blockmean.html"><I><B>blockmean</B></I></A><A NAME="2338"></A></TD>
<TD ALIGN="LEFT">L<IMG
WIDTH="11" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img12.gif"
ALT="$_2$"> estimate (<IMG
WIDTH="36" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img16.gif"
ALT="$x, y, z$">) data filters/decimators</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html161"
HREF="../blockmedian.html"><I><B>blockmedian</B></I></A><A NAME="2347"></A></TD>
<TD ALIGN="LEFT">L<IMG
WIDTH="11" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img13.gif"
ALT="$_1$"> estimate (<IMG
WIDTH="36" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img16.gif"
ALT="$x, y, z$">) data filters/decimators</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html162"
HREF="../blockmode.html"><I><B>blockmode</B></I></A><A NAME="2356"></A></TD>
<TD ALIGN="LEFT">Mode estimate (<IMG
WIDTH="36" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img16.gif"
ALT="$x, y, z$">) data filters/decimators</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html163"
HREF="../filter1d.html"><I><B>filter1d</B></I></A><A NAME="2365"></A></TD>
<TD ALIGN="LEFT">Filter 1-D data (time series)</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html164"
HREF="../grdfilter.html"><I><B>grdfilter</B></I></A><A NAME="2374"></A></TD>
<TD ALIGN="LEFT">Filter 2-D data in space domain</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>PLOTTING OF 1-D and 2-D DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html165"
HREF="../grdcontour.html"><I><B>grdcontour</B></I></A><A NAME="2383"></A></TD>
<TD ALIGN="LEFT">Contouring of 2-D gridded data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html166"
HREF="../grdimage.html"><I><B>grdimage</B></I></A><A NAME="2392"></A></TD>
<TD ALIGN="LEFT">Produce images from 2-D gridded data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html167"
HREF="../grdvector.html"><I><B>grdvector</B></I></A><A NAME="2401"></A></TD>
<TD ALIGN="LEFT">Plot vector fields from 2-D gridded data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html168"
HREF="../grdview.html"><I><B>grdview</B></I></A><A NAME="2410"></A></TD>
<TD ALIGN="LEFT">3-D perspective imaging of 2-D gridded data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html169"
HREF="../psbasemap.html"><I><B>psbasemap</B></I></A><A NAME="2419"></A></TD>
<TD ALIGN="LEFT">Create a basemap frame</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html170"
HREF="../psclip.html"><I><B>psclip</B></I></A><A NAME="2428"></A></TD>
<TD ALIGN="LEFT">Use polygon files as clipping paths</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html171"
HREF="../pscoast.html"><I><B>pscoast</B></I></A><A NAME="2437"></A></TD>
<TD ALIGN="LEFT">Plot coastlines, filled continents, rivers, and political borders</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html172"
HREF="../pscontour.html"><I><B>pscontour</B></I></A><A NAME="2446"></A></TD>
<TD ALIGN="LEFT">Direct contouring or imaging of <I>xyz</I> data by triangulation</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html173"
HREF="../pshistogram.html"><I><B>pshistogram</B></I></A><A NAME="2455"></A></TD>
<TD ALIGN="LEFT">Plot a histogram</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html174"
HREF="../psimage.html"><I><B>psimage</B></I></A><A NAME="2464"></A></TD>
<TD ALIGN="LEFT">Plot Sun rasterfiles on a map</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html175"
HREF="../psmask.html"><I><B>psmask</B></I></A><A NAME="2473"></A></TD>
<TD ALIGN="LEFT">Create overlay to mask specified regions of a map</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html176"
HREF="../psrose.html"><I><B>psrose</B></I></A><A NAME="2482"></A></TD>
<TD ALIGN="LEFT">Plot sector or rose diagrams</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html177"
HREF="../psscale.html"><I><B>psscale</B></I></A><A NAME="2491"></A></TD>
<TD ALIGN="LEFT">Plot grayscale or colorscale</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html178"
HREF="../pstext.html"><I><B>pstext</B></I></A><A NAME="2500"></A></TD>
<TD ALIGN="LEFT">Plot textstrings</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html179"
HREF="../pswiggle.html"><I><B>pswiggle</B></I></A><A NAME="2509"></A></TD>
<TD ALIGN="LEFT">Draw anomalies along track</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html180"
HREF="../psxy.html"><I><B>psxy</B></I></A><A NAME="2518"></A></TD>
<TD ALIGN="LEFT">Plot symbols, polygons, and lines in 2-D</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html181"
HREF="../psxyz.html"><I><B>psxyz</B></I></A><A NAME="2527"></A></TD>
<TD ALIGN="LEFT">Plot symbols, polygons, and lines in 3-D</TD>
</TR>
</TABLE>
</DIV>
<P>
<DIV ALIGN="CENTER"><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=2>GRIDDING OF (X,Y,Z) TABLE DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html182"
HREF="../nearneighbor.html"><I><B>nearneighbor</B></I></A><A NAME="2536"></A></TD>
<TD ALIGN="LEFT">Nearest-neighbor gridding scheme</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html183"
HREF="../surface.html"><I><B>surface</B></I></A><A NAME="2545"></A></TD>
<TD ALIGN="LEFT">Continuous curvature gridding algorithm</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html184"
HREF="../triangulate.html"><I><B>triangulate</B></I></A><A NAME="2554"></A></TD>
<TD ALIGN="LEFT">Perform optimal Delauney triangulation on <I>xyz</I> data</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>SAMPLING OF 1-D AND 2-D DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html185"
HREF="../grdsample.html"><I><B>grdsample</B></I></A><A NAME="2563"></A></TD>
<TD ALIGN="LEFT">Resample a 2-D gridded data onto new grid</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html186"
HREF="../grdtrack.html"><I><B>grdtrack</B></I></A><A NAME="2572"></A></TD>
<TD ALIGN="LEFT">Sampling of 2-D data along 1-D track</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html187"
HREF="../sample1d.html"><I><B>sample1d</B></I></A><A NAME="2581"></A></TD>
<TD ALIGN="LEFT">Resampling of 1-D data</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>PROJECTION AND MAP-TRANSFORMATION</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html188"
HREF="../grdproject.html"><I><B>grdproject</B></I></A><A NAME="2590"></A></TD>
<TD ALIGN="LEFT">Transform gridded data to a new coordinate system</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html189"
HREF="../mapproject.html"><I><B>mapproject</B></I></A><A NAME="2599"></A></TD>
<TD ALIGN="LEFT">Transform table data to a new coordinate system</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html190"
HREF="../project.html"><I><B>project</B></I></A><A NAME="2608"></A></TD>
<TD ALIGN="LEFT">Project data onto lines or great circles</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>INFORMATION</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html191"
HREF="../gmtdefaults.html"><I><B>gmtdefaults</B></I></A><A NAME="2617"></A></TD>
<TD ALIGN="LEFT">List the current default settings</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html192"
HREF="../gmtset.html"><I><B>gmtset</B></I></A><A NAME="2626"></A></TD>
<TD ALIGN="LEFT">Command-line editing of parameters in the .gmtdefaults file</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html193"
HREF="../grdinfo.html"><I><B>grdinfo</B></I></A><A NAME="2635"></A></TD>
<TD ALIGN="LEFT">Get information about the content of gridded files</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html194"
HREF="../minmax.html"><I><B>minmax</B></I></A><A NAME="2644"></A></TD>
<TD ALIGN="LEFT">Report extreme values in table data files</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>MISCELLANEOUS</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html195"
HREF="../gmtmath.html"><I><B>gmtmath</B></I></A><A NAME="2653"></A></TD>
<TD ALIGN="LEFT">Reverse Polish Notation (RPN) calculator for table data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html196"
HREF="../makecpt.html"><I><B>makecpt</B></I></A><A NAME="2662"></A></TD>
<TD ALIGN="LEFT">Create GMT color palette tables</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html197"
HREF="../spectrum1d.html"><I><B>spectrum1d</B></I></A><A NAME="2671"></A></TD>
<TD ALIGN="LEFT">Compute spectral estimates from time-series</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html198"
HREF="../triangulate.html"><I><B>triangulate</B></I></A><A NAME="2680"></A></TD>
<TD ALIGN="LEFT">Perform optimal Delauney triangulation on xyz data</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>CONVERT OR EXTRACT SUBSETS OF DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html199"
HREF="../gmtconvert.html"><I><B>gmtconvert</B></I></A><A NAME="2689"></A></TD>
<TD ALIGN="LEFT">Convert table data from one format to another</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html200"
HREF="../gmtselect.html"><I><B>gmtselect</B></I></A><A NAME="2698"></A></TD>
<TD ALIGN="LEFT">Select table data subsets based on multiple spatial criteria</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html201"
HREF="../grd2xyz.html"><I><B>grd2xyz</B></I></A><A NAME="2707"></A></TD>
<TD ALIGN="LEFT">Convert 2-D gridded data to table data</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html202"
HREF="../grdcut.html"><I><B>grdcut</B></I></A><A NAME="2716"></A></TD>
<TD ALIGN="LEFT">Cut a sub-region from a gridded file</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html203"
HREF="../grdpaste.html"><I><B>grdpaste</B></I></A><A NAME="2725"></A></TD>
<TD ALIGN="LEFT">Paste together gridded files along common edge</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html204"
HREF="../grdreformat.html"><I><B>grdreformat</B></I></A><A NAME="2734"></A></TD>
<TD ALIGN="LEFT">Convert from one grid format to another</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html205"
HREF="../splitxyz.html"><I><B>splitxyz</B></I></A><A NAME="2743"></A></TD>
<TD ALIGN="LEFT">Split (<IMG
WIDTH="36" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img16.gif"
ALT="$x, y, z$">) table data into several segments</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html206"
HREF="../xyz2grd.html"><I><B>xyz2grd</B></I></A><A NAME="2752"></A></TD>
<TD ALIGN="LEFT">Convert table data to 2-D gridded file</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>DETERMINE TRENDS IN 1-D AND 2-D DATA</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html207"
HREF="../fitcircle.html"><I><B>fitcircle</B></I></A><A NAME="2761"></A></TD>
<TD ALIGN="LEFT">Finds best-fitting great or small circles</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html208"
HREF="../grdtrend.html"><I><B>grdtrend</B></I></A><A NAME="2770"></A></TD>
<TD ALIGN="LEFT">Fits polynomial trends to gridded files (<IMG
WIDTH="72" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img15.gif"
ALT="$z = f(x,y)$">)</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html209"
HREF="../trend1d.html"><I><B>trend1d</B></I></A><A NAME="2779"></A></TD>
<TD ALIGN="LEFT">Fits polynomial or Fourier trends to <IMG
WIDTH="59" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img14.gif"
ALT="$y = f(x)$"> series</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html210"
HREF="../trend2d.html"><I><B>trend2d</B></I></A><A NAME="2788"></A></TD>
<TD ALIGN="LEFT">Fits polynomial trends to <IMG
WIDTH="72" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img15.gif"
ALT="$z = f(x,y)$"> series</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=2>OTHER OPERATIONS ON 2-D GRIDS</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html211"
HREF="../grd2cpt.html"><I><B>grd2cpt</B></I></A><A NAME="2797"></A></TD>
<TD ALIGN="LEFT">Make color palette table from gridded file</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html212"
HREF="../grdclip.html"><I><B>grdclip</B></I></A><A NAME="2806"></A></TD>
<TD ALIGN="LEFT">Limit the <IMG
WIDTH="10" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img17.gif"
ALT="$z$">-range in gridded data sets</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html213"
HREF="../grdedit.html"><I><B>grdedit</B></I></A><A NAME="2815"></A></TD>
<TD ALIGN="LEFT">Modify grid header information</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html214"
HREF="../grdfft.html"><I><B>grdfft</B></I></A><A NAME="2824"></A></TD>
<TD ALIGN="LEFT">Operate on gridded files in frequency domain</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html215"
HREF="../grdgradient.html"><I><B>grdgradient</B></I></A><A NAME="2833"></A></TD>
<TD ALIGN="LEFT">Compute directional gradients from gridded files</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html216"
HREF="../grdhisteq.html"><I><B>grdhisteq</B></I></A><A NAME="2842"></A></TD>
<TD ALIGN="LEFT">Histogram equalization for gridded files</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html217"
HREF="../grdlandmask.html"><I><B>grdlandmask</B></I></A><A NAME="2851"></A></TD>
<TD ALIGN="LEFT">Creates mask gridded file from coastline database</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html218"
HREF="../grdmask.html"><I><B>grdmask</B></I></A><A NAME="2860"></A></TD>
<TD ALIGN="LEFT">Set grid nodes in/outside a clip path to constants</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html219"
HREF="../grdmath.html"><I><B>grdmath</B></I></A><A NAME="2869"></A></TD>
<TD ALIGN="LEFT">Reverse Polish Notation (RPN) calculator for gridded files</TD>
</TR>
<TR><TD ALIGN="LEFT"><A NAME="tex2html220"
HREF="../grdvolume.html"><I><B>grdvolume</B></I></A><A NAME="2878"></A></TD>
<TD ALIGN="LEFT">Calculate volume under a surface within a contour</TD>
</TR>
</TABLE>
</DIV>
<P>
<DIV ALIGN="CENTER">
</DIV>
<P>
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</DIV>
<P>
<DIV ALIGN="CENTER"><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=2>STANDARDIZED COMMAND LINE OPTIONS</TD>
</TR>
<TR><TD ALIGN="LEFT" COLSPAN=2><B>-B</B><I>xinfo</I>[<I>/yinfo</I>[<I>/zinfo</I>]][<I>WESNZwesnz+</I>][<I>:.title:</I>] Tickmarks. Each info is</TD>
</TR>
<TR><TD ALIGN="LEFT" COLSPAN=2>[<B>a</B>]<I>tick</I>[<B>m</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>c</B>][<B>f</B><I>tick</I>[<B>m</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>c</B>]][<B>g</B><I>tick</I>[<B>m</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>c</B>]][<B>l</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>p</B>][:"label":][:,"unit":]</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-H</B><I>[n_headers]</I></TD>
<TD ALIGN="LEFT">ASCII tables have header record[s]</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-J</B> (upper case for width, lower case for scale)</TD>
<TD ALIGN="LEFT">Map projection (see below)</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JA</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">Lambert azimuthal equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JB</B><!-- MATH
$lon_0/lat_0/lat_1/lat_2/width$
-->
<IMG
WIDTH="172" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img23.gif"
ALT="$lon_0/lat_0/lat_1/lat_2/width$"></TD>
<TD ALIGN="LEFT">Albers conic equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JC</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">Cassini cylindrical</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JD</B><!-- MATH
$lon_0/lat_0/lat_1/lat_2/width$
-->
<IMG
WIDTH="172" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img23.gif"
ALT="$lon_0/lat_0/lat_1/lat_2/width$"></TD>
<TD ALIGN="LEFT">Equidistant conic</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JE</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">Azimuthal equidistant</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JF</B><!-- MATH
$lon_0/lat_0/horizon/width$
-->
<IMG
WIDTH="166" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img24.gif"
ALT="$lon_0/lat_0/horizon/width$"></TD>
<TD ALIGN="LEFT">Azimuthal Gnomonic</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JG</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">Azimuthal orthographic</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JH</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Hammer equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JI</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Sinusoidal equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JJ</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Miller cylindrical</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JKf</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Eckert IV equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JKs</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Eckert VI equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JL</B><!-- MATH
$lon_0/lat_0/lat_1/lat_2/width$
-->
<IMG
WIDTH="172" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img23.gif"
ALT="$lon_0/lat_0/lat_1/lat_2/width$"></TD>
<TD ALIGN="LEFT">Lambert conic conformal</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JM</B><IMG
WIDTH="41" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img26.gif"
ALT="$width$"> or <B>-JM</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">Mercator cylindrical</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JN</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Robinson</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JOa</B><!-- MATH
$lon_0/lat_0/az/width$
-->
<IMG
WIDTH="131" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img27.gif"
ALT="$lon_0/lat_0/az/width$"></TD>
<TD ALIGN="LEFT">Oblique Mercator, 1: origin and azimuth</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JOb</B><!-- MATH
$lon_0/lat_0/lon_1/lat_1/width$
-->
<IMG
WIDTH="176" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img28.gif"
ALT="$lon_0/lat_0/lon_1/lat_1/width$"></TD>
<TD ALIGN="LEFT">Oblique Mercator, 2: two points</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JOc</B><!-- MATH
$lon_0/lat_0/lon_p/lat_p/width$
-->
<IMG
WIDTH="178" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img29.gif"
ALT="$lon_0/lat_0/lon_p/lat_p/width$"></TD>
<TD ALIGN="LEFT">Oblique Mercator, 3: origin and pole</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JP</B>[<B>a</B><IMG
WIDTH="41" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img26.gif"
ALT="$width$">[<IMG
WIDTH="51" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img30.gif"
ALT="$/origin$">]</TD>
<TD ALIGN="LEFT">Polar [azimuthal] (<IMG
WIDTH="25" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img2.gif"
ALT="$\theta , r$">) (or cylindrical)</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JQ</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Equidistant cylindrical (Plate Carrée)</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JR</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Winkel Tripel</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JS</B><!-- MATH
$lon_0/lat_0/width$
-->
<IMG
WIDTH="109" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img22.gif"
ALT="$lon_0/lat_0/width$"></TD>
<TD ALIGN="LEFT">General stereographic</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JT</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Transverse Mercator</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JU</B><IMG
WIDTH="78" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img31.gif"
ALT="$zone/width$"></TD>
<TD ALIGN="LEFT">Universal Transverse Mercator (UTM)</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JV</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Van der Grinten</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JW</B><IMG
WIDTH="77" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img25.gif"
ALT="$lon_0/width$"></TD>
<TD ALIGN="LEFT">Mollweide</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JX</B><IMG
WIDTH="41" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img26.gif"
ALT="$width$">[<B>l</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>p</B>][/<IMG
WIDTH="45" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img32.gif"
ALT="$height$">[<B>l</B><IMG
WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img21.gif"
ALT="$\vert$"><B>p</B>]][<B>d</B>]</TD>
<TD ALIGN="LEFT">Linear, log<IMG
WIDTH="17" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img9.gif"
ALT="$_{10}$">, and <IMG
WIDTH="18" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img33.gif"
ALT="$x^a$">-<IMG
WIDTH="18" HEIGHT="35" ALIGN="MIDDLE" BORDER="0"
SRC="img34.gif"
ALT="$y^b$"> (exponential)</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-JY</B><!-- MATH
$lon_0/lat_s/width$
-->
<IMG
WIDTH="107" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img35.gif"
ALT="$lon_0/lat_s/width$"></TD>
<TD ALIGN="LEFT">General cylindrical equal area</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-K</B></TD>
<TD ALIGN="LEFT">Append more PS later</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-O</B></TD>
<TD ALIGN="LEFT">This is an overlay plot</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-P</B></TD>
<TD ALIGN="LEFT">Select Portrait orientation</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-R</B><I>west/east/south/north</I>[<I>/zmin/zmax</I>][<B>r</B>]</TD>
<TD ALIGN="LEFT">Specify Region of interest</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-U</B>[<I>/dx/dy</I>/][<I>label</I>]</TD>
<TD ALIGN="LEFT">Plot time-stamp on plot</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-V</B></TD>
<TD ALIGN="LEFT">Run in verbose mode</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-X</B>[<B>a</B>]<I>off</I></TD>
<TD ALIGN="LEFT">Shift plot origin in <IMG
WIDTH="11" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img1.gif"
ALT="$x$">-direction</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-Y</B>[<B>a</B>]<I>off</I></TD>
<TD ALIGN="LEFT">Shift plot origin in <IMG
WIDTH="11" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img18.gif"
ALT="$y$">-direction</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-c</B><I>copies</I></TD>
<TD ALIGN="LEFT">Set number of plot copies [1]</TD>
</TR>
<TR><TD ALIGN="LEFT"><B>-:</B></TD>
<TD ALIGN="LEFT">Expect <I>y</I>/<I>x</I> input rather than <I>x</I>/<I>y</I></TD>
</TR>
</TABLE>
</DIV>
<P>
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<ADDRESS>
Paul Wessel
2001-04-18
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