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GMT-doc-4.5.6-1.fc13.noarch.rpm

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<H2><A NAME="SECTION00915000000000000000">
1.1.5 Overview of </A><A NAME="tex2html303"
  HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> 4.5.1 [Sept-20, 2009]
</H2>

<P>
This is almost entirely a bug-fix release where we address several 64-bit incompatibilities and
rebuild the netcdf GSHHS library to include some attributes from GSHHS that were needed
by new options in <A NAME="tex2html304"
  HREF="../man/pscoast.html"><I><B>pscoast</B></I></A><A NAME="3437"></A> and other programs.  Note that the GSHHS polygons have not changed (still
at version 2.0), but we had to update the derived netcdf repackaging used by <A NAME="tex2html305"
  HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> to 2.0.1.
However, some enhancements were added as well, most significantly support for the polyconic
projection (<B>-JPoly</B>), experimental support for grid and image imports via GDAL
(requires -enable-gdal during configure and properly installed GDAL libraries and include files),
and allowing <B>-JX</B><I>width/height</I> to recompute a <I>height</I> given as zero based on the
<I>width</I> (or vice versa) and the aspect ratio of the region.

<P>
Here is the list of bug corrections:
<DL>
<DT><STRONG><A NAME="tex2html306"
  HREF="../man/configure.ac.html"><I><B>configure.ac</B></I></A><A NAME="3447"></A></STRONG></DT>
<DD>:	Now use -enable-flock to enable file locking, instead of
		-disable-flock to disable if.
		Use -enable-64 to force 64-bit compilation, use -disable-64
		to force 32-bit compilation; otherwise use default.
		Switch -DGMT_QSORT is now on only for OS X prior to Snow Leopard as the latter has
		a correctly working 64-bit <TT>qsort</TT> function.
	
</DD>
<DT><STRONG><A NAME="tex2html307"
  HREF="../man/gmt_customio.c.html"><I><B>gmt_customio.c</B></I></A><A NAME="3453"></A></STRONG></DT>
<DD>:	Made surfer grid header i/o 64-bit compliant.
	
</DD>
<DT><STRONG><A NAME="tex2html308"
  HREF="../man/gmt_map.c.html"><I><B>gmt_map.c</B></I></A><A NAME="3458"></A></STRONG></DT>
<DD>:	Changed <TT>GMT_truncate</TT> from being a pointer function (PFL)
		to a regular function that simply calls <TT>GMT_truncate_x</TT>
		or <TT>GMT_truncate_tm</TT> depending on whether projection is TM.
		This to avoid problems with calling <TT>GMT_truncate</TT> with
		constant argument -1 in 64-bit machines and thus producing wrapped <A NAME="tex2html309"
  HREF="../man/pscoast.html"><I><B>pscoast</B></I></A><A NAME="3467"></A> maps.
	
</DD>
<DT><STRONG><A NAME="tex2html310"
  HREF="../man/gmt_shore.c.html"><I><B>gmt_shore.c</B></I></A><A NAME="3472"></A></STRONG></DT>
<DD>:	The <B>-A+r</B><IMG
 WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
 SRC="img12.png"
 ALT="$\vert$"><B>+l</B> option was premature as more info in the GSHHS
	netcdf files were needed to properly skip features. Now working with the revision GSHHS 2.0.1.
	
</DD>
<DT><STRONG><A NAME="tex2html311"
  HREF="../man/gmt_support.c.html"><I><B>gmt_support.c</B></I></A><A NAME="3478"></A></STRONG></DT>
<DD>: The routine that checks if a points is inside or outside a
		polar cap had trouble when a point's longitude exactly
		equalled one of the polygon points since round-off could 
		cause our test to fail.
		Fixed bug in <I>x_inc</I> variable as function of latitude.
		<TT>GMT_log_array</TT> recoded to avoid 64-bit error (last value was not included).
	
</DD>
<DT><STRONG><A NAME="tex2html312"
  HREF="../man/grdcontour.c.html"><I><B>grdcontour.c</B></I></A><A NAME="3484"></A></STRONG></DT>
<DD>: The <B>-L</B> option was not used in limiting contours.
	
</DD>
<DT><STRONG><A NAME="tex2html313"
  HREF="../man/minmax.c.html"><I><B>minmax.c</B></I></A><A NAME="3490"></A></STRONG></DT>
<DD>: The <B>-EH</B> option did not work.
	
</DD>
<DT><STRONG><A NAME="tex2html314"
  HREF="../man/psmask.c.html"><I><B>psmask.c</B></I></A><A NAME="3496"></A></STRONG></DT>
<DD>: With <B>-D</B>, the internal <I>di, dj</I> constants were set way too large.
	
</DD>
<DT><STRONG><A NAME="tex2html315"
  HREF="../man/pswiggle.c.html"><I><B>pswiggle.c</B></I></A><A NAME="3502"></A></STRONG></DT>
<DD>: With <B>-Jx</B><I>scale</I><B>d</B>, distances were not scaled correctly
		so <B>-D</B> failed.
	
</DD>
<DT><STRONG><A NAME="tex2html316"
  HREF="../man/mgd77/mgd77magref.c.html"><I><B>mgd77/mgd77magref.c</B></I></A><A NAME="3509"></A></STRONG></DT>
<DD>: Got wrong time as time initialization had changed but
		not implemented in this program.
	
</DD>
<DT><STRONG><A NAME="tex2html317"
  HREF="../man/mgd77/mgd77sniffer.c.html"><I><B>mgd77/mgd77sniffer.c</B></I></A><A NAME="3514"></A></STRONG></DT>
<DD>: Bug in <B>-I</B> option; needed to set bitpattern for bad faa.
	
</DD>
<DT><STRONG><A NAME="tex2html318"
  HREF="../man/misc/gmt2kml.c.html"><I><B>misc/gmt2kml.c</B></I></A><A NAME="3520"></A></STRONG></DT>
<DD>: Option <B>-T</B> did not handle spaces in titles and folder names.
		Under Windows, the output got scrambled due to DLL hell.
	
</DD>
<DT><STRONG><A NAME="tex2html319"
  HREF="../man/spotter/backtracker.c.html"><I><B>spotter/backtracker.c</B></I></A><A NAME="3526"></A></STRONG></DT>
<DD>: Failed in 64-bit mode due to variable mismatches.
	
</DD>
<DT><STRONG><A NAME="tex2html320"
  HREF="../man/x2sys/x2sys_get.c.html"><I><B>x2sys/x2sys_get.c</B></I></A><A NAME="3531"></A></STRONG></DT>
<DD>: The <B>-L</B> option failed if list contained file extensions.
	
</DD>
<DT><STRONG><A NAME="tex2html321"
  HREF="../man/x2sys/x2sys_solve.c.html"><I><B>x2sys/x2sys_solve.c</B></I></A><A NAME="3537"></A></STRONG></DT>
<DD>: Did not allocate array for storing weights.
</DD>
</DL>

<P>
Here is a list of the recent enhancement to various programs:

<P>

<OL>
<LI><A NAME="tex2html322"
  HREF="../man/gmt_customio.c.html"><I><B>gmt_customio.c</B></I></A><A NAME="3542"></A> now has optional GDAL read-only interface as format 22 (code gd).
</LI>
<LI><A NAME="tex2html323"
  HREF="../man/gmtset.c.html"><I><B>gmtset.c</B></I></A><A NAME="3547"></A> has new default <B>TRANSPARENCY</B> = <I>stroke/fill</I> that can
	change the PDF transparency for stroked and filled items [Note: Only supported by Adobe Distiller].
</LI>
<LI><A NAME="tex2html324"
  HREF="../man/pslib.c.html"><I><B>pslib.c</B></I></A><A NAME="3552"></A> has added option to reduce all color to gray scale via <B>PS_COLOR</B> = gray.
</LI>
<LI><A NAME="tex2html325"
  HREF="../man/grdimage.c.html"><I><B>grdimage.c</B></I></A><A NAME="3557"></A> has optional support that allow single-band image import via GDAL.
</LI>
<LI><A NAME="tex2html326"
  HREF="../man/misc/nc2xy.c.html"><I><B>misc/nc2xy.c</B></I></A><A NAME="3562"></A> now has <B>-bo</B> option.
</LI>
<LI><A NAME="tex2html327"
  HREF="../man/mgd77/mgd77magref.c.html"><I><B>mgd77/mgd77magref.c</B></I></A><A NAME="3568"></A> can combine IGRF and CM4 computations.
</LI>
</OL>

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2011-02-27
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