| gadl - Runs the PDL Shell starting the GrADS Interface |
gadl - Runs the PDL Shell (perldl) starting the GrADS Interface
gadl [ -b -c -dap -dods -hdf -nc -nc4 -o grads_opts -v level ]
Runs the Perl Data Language (PDL) shell (perldl), automatically
loading the module Gerl.pm, and starting GrADS according to the
command line options described below. This is a customization of
perldl for running GrADS. As such it has all the capabilities of an
interactive PDL shell, providing a powerful and convenient environment
for advanced geophysical data analysis and visualization.
Consult the Gerl documentation at http://opengrads.org/doc/perl/Gerl/ for a description of the command line filter registered by Gerl. This filter defines many convenient shorthands for commonly used GrADS commands and automatically escapes arguments for a look-and-fell similar to the classic GrADS command line.
Starts the gradsc executable, assumed to be on your path
Starts the gradsnc executable, assumed to be on your path
Starts the gradsnc4 executable, assumed to be on your path
Starts the gradshdf executable, assumed to be on your path
Starts the gradsdods executable, assumed to be on your path
Starts the gradsdap executable, assumed to be on your path
Specifies to full pathname for the GrADS executable
Starts GrADS in batch mode
By default, any GrADS output to stdout/stderr is echoed to the
screen; specify -noecho to suppress this output.
Starts GrADS in landscape mode (default)
Passes the specified command line options directly to GrADS. Example:
% gadl -o '-g 800x600 -c "run myscript.gs"'
Starts GrADS in portrait mode
Transfer file for data exchanmge between PDL/GrADS; use a RAMDISK if you can.
Controls the verbose level of error codes returned by GrADS. Each
command issued to GrADS result in an error code rc. Non-zero values
0f rc indicate that an error has occurred while rc=0 means that
the command was executed successfully. When -v 1 is specified, only
non-zero values of rc are echoed to stdout. When -v 2,
both zero and non-zero values of rc are echoed; the default is
not to echo any return code to screen. The -v option is primarily
intended for developers.
On some systems it hangs when the name of an invalid GrADS executable is provided.
Any attempt to read from stdin from within GrADS
will fail, possibly hang, including the pull function in gs scripts and
the request for CR after an animation sequence is displayed.
http://opengrads.org/doc/perl/Grads/Grads.html - Grads.pm, an OO interface to GrADS
http://opengrads.org/doc/perl/Gerl/Gerl.html - Gerl.pm, a procedural interface to GrADS
http://pdl.perl.org - the Perl Data Language (PDL) official website.
http://pdl.sourceforge.net/PDLdocs/perldl.html - documentation for the PDL shell.
http://grads.iges.org/grads - the official GrADS website.
http://opengrads.org - the OpenGrADS website hosting a number of GrADS extensions.
http://opengrads.org/test_data - sample datasets for running tutorials and testing GrADS.
Arlindo da Silva <dasilva@alum.mit.edu>
Copyright (c) 2007 Arlindo da Silva. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
| gadl - Runs the PDL Shell starting the GrADS Interface |