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<H3><A NAME="SECTION001332300000000000000"></A>
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<BR>
5.3.2.3 General Stereographic Map
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<P>
In terms of usage this projection is identical to the Lambert
azimuthal equal-area projection. Thus, one can make both
rectangular and hemispheric maps. Our example shows Australia
using a projection pole at 130E/30<IMG
WIDTH="11" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img61.gif"
ALT="$^{o}$">S. The command used was
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#!/bin/sh
# $Id: GMT_stereographic_general.sh,v 1.1 2001/03/21 04:10:21 pwessel Exp $
#
gmtset DEGREE_FORMAT 1 OBLIQUE_ANOTATION 0
pscoast -R100/-40/160/-10r -JS130/-30/4i -B30g10/15g15 -Dl -A500 -G0 -P \
> GMT_stereographic_general.ps
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<DIV ALIGN="CENTER"><A NAME="fig:GMT_stereographic_general"></A><A NAME="7165"></A>
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<CAPTION ALIGN="BOTTOM"><STRONG>Figure 5.14:</STRONG>
General
stereographic conformal projection with rectangular borders.</CAPTION>
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WIDTH="551" HEIGHT="359" BORDER="0"
SRC="img76.gif"
ALT="\begin{figure}\centering\epsfig{figure=eps/GMT_stereographic_general.eps}\end{figure}"></TD></TR>
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By choosing 0<IMG
WIDTH="11" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img61.gif"
ALT="$^{o}$">/0<IMG
WIDTH="11" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img61.gif"
ALT="$^{o}$">as the pole, we obtain the conformal
stereonet presented next to its equal-area cousin in the Section <A HREF="node48.html#sec:lamb">5.3.1</A> on
the Lambert azimuthal equal-area projection (Figure <A HREF="node48.html#fig:GMT_stereonets">5.11</A>).
<P>
<A NAME="7141"></A>
<A NAME="7158"></A>
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<ADDRESS>
Paul Wessel
2001-04-18
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