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<html>
<head>
<title>Ferret V5.41 Release Notes</title>
</head>
<body>
<h1>
Ferret Version 5.41 Release notes</h1>
<ul>
<li>
<a href="#new_features">New Features and Enhancements in Version
5.41</a><br><br></li>
<li>
<a href="#changes">Changes to options in Version 5.41</a><br><br></li>
<li>
<a href="#bug_fixes">Bug fixes in Version 5.41</a><br><br></li>
<li>
<a href="#known_bugs">Known bugs in Version 5.41</a><br><br></li>
</ul>
<blockquote>
<blockquote> </blockquote>
<h2>
<a NAME="new_features"></a>New Features and Enhancements in Version
5.41</h2>
<ul>
<li>
<b>New attribute for calendar type in NetCDF descriptor
files. </b> In the $BACKGROUND_RECORD use
D_CALTYPE = 'NOLEAP' for example, to specify a
non-standard calendar type for your data.<br><br></li>
<li>
<b>New internal string handling functions: </b>STRLEN, UPCASE, DNCASE,
STRINDEX, STRRINDEX, SUBSTRING, STRCAT and STRFLOAT.<br><br></li>
<li>
<b>New option for continuous color keys</b> FILL/KEY=CONTINUOUS, and
SHADE/KEY=CONTINUOUS
plot a color key without the lines between the different levels.<br><br></li>
<li>
<b>New option VECTOR/NOKEY</b><br><br></li>
<li>
<b>New option CANCEL AXIS/ALL</b> cancels user-defined axes, and
restores coordinate storage for irregularly-spaced axes. Also,
"yes? CANCEL AXIS axisname" cancels an axis and restores the coordinate
storage used when an irregular axes was defined.<br><br></li>
<li>
<b>Symbols YAXIS_MIN and YAXIS_MAX always defined after a plot is drawn.</b>
Previously these were only defined when /VLIM option was specified on
the plotting command. Now they are also defined when auto-scaling is used.
<br><br></li>
</ul>
<h2><a NAME="changes"></a>Changed option in Version 5.41</h2>
<ul><li>
<b>PLOT/SYMBOL=DOT has been temporarily removed.</b> We need to
resolve some issues regarding metafiles and postscript. This option
will be restored in future versions.
<br><br></li></ul>
<h2>
<a NAME="bug_fixes"></a>Bug fixes in Version 5.41</h2>
<ul>
<li><b>Installation: Error messages about <i>libXm.so.2: cannot open shared
object file</i></b> Motif libraries are no longer required, as
they are linked statically in with the Ferret executable.<br><br></li>
<li>
<b>"**ERROR: illegal data type (float,string,...) for operation:"</b>
This error message occurred for some graphical operations on expressions
involving IF--THEN. Fixed.<br><br></li>
<li>
<b>Bug in strides at the IO level</b> which resulted in improper
wrapping of data (highly visible corruption). Fixed.<br><br></li>
<li>
<b>Ferret hangs when attempting to access invalid DODS URLS</b> Fixed.<br><br></li>
<li>
<b>SET DATA filename</b> finds files with the extension .nc as
well as .cdf<br><br></li>
<li>
<b>GIF creation now works with TrueColor visuals</b> as well as
PseudoColor visuals<br><br></li>
<li>
<b>Nested REPEATs involving parentheses </b>were parsed incorrectly.
Fixed.<br><br></li>
<li>
<b>Bugs/backwards compatibility issues with PPL commands.</b> Previous
behavior is restored. PPL commands make settings that persist
throughout the Ferret session. Qualifiers to plot commands have their
effect only on that command:
<UL>
<li><b>PPL AXLABP</b> settings persist.<br><br></li>
<li><b>PPL AXSET</b> persists; PLOT/AXES= or SHADE/NOAXES apply only to
that one command.<br><br></li>
<li><b>PPL LINE</b> settings persist, setting dash characteristics;
PLOT/DASH settings are only for that plot command<br><br></li>
</UL>
<li>
<b>PLOT/VS/DASH[=]</b> allows dashed lines on PLOT/VS
plots.<br><br></li>
<li>
<b>SAMPLEXY function</b> did not check for missing data in the (x,y)
values to sample.<br><br></li>
<li>
<b>Horizontal log plots </b>had wrong pattern of tic marks on the axis.<br><br></li>
<li>
<b>POLYGONS with missing vertices</b> in overlay plots were not treated
correctly.<br><br></li>
<li>
<b>POLYGON plots now load all the PPLUS memory </b>needed for the plot
once per polygon call.<br><br></li>
<li>
<b>Overlays on POLYGON plots </b>now work.<br><br></li>
<li>
<b>POLYGON plots over a depth axis </b>work correctly (previously needed
a workaround where the vertices on the depth axis had to be multiplied
by -1).<br><br></li>
<li>
<b>Axis label formatting</b> for small negative numbers has been
corrected.<br><br></li>
<li>
<b>Regridding with @AVE</b> between unlike grids gave wrong results in
some cases. This is corrected.<br><br></li>
<li>
<b>Overlays having No Valid Data</b> now put this information in the key,
rather than across the middle of the plot.<br><br></li>
</ul>
<h2>
<a NAME="known_bugs"></a>Known bugs Version 5.41</h2>
<ul>
<li><b>Scaling of Curvilinear Vectors:</b> Vector arrows in curvilinear
coordinates are not scaled. We have a fix for this which will be in the
next release.<br><br></li>
<li><b>Support for GIF creation using 24 bit color (TrueColor) visuals</b>
does not work under Solaris. <br><br></li>
</ul>
<p><br>
<hr align="Left"><tt>17-Sep-2002</tt>
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</body>
</html>
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