| Re: Writing on X without X device (!) [message #14538] |
Tue, 09 March 1999 00:00 |
Martin Schultz
Messages: 515
Registered: August 1997
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Senior Member |
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Liam Gumley wrote:
>
> [...]
> To create IDL graphics on a Unix box without being logged in, you need
> two things.
>
> The first is a Unix shell script (which is run in batch mode) which
> invokes IDL. It should look like this:
> [...]>
> The second is an IDL script which does the processing. Note that this is
> a *NOT* a procedure or a function; it has no PRO, FUNCTION, or END
> statements. Here's an example:
>
... but you can call your pros and funs as usual (as long as you make
sure to have the !PATH variable set correctly). Here's an example shell
script that I use to iterate model results:
(1) shell script:
#!/bin/csh
# shell script for remote IDL calls
# called as ridl <programname>
# program must be "main", i.e. no pro or function statement
echo shell script for remote IDL calls
# set environment variables
setenv IDL_DIR /usr/local/lib/rsi/idl_5.1
setenv IDL_PATH \+$IDL_DIR/lib:\+$IDL_DIR/examples
setenv IDL_DEVICE null
setenv IDL_STARTUP ~mgs/IDL/idl_startup.pro
alias idl $IDL_DIR/bin/idl
alias idltool $IDL_DIR/bin/idltool
alias idlhelp $IDL_DIR/bin/idlhelp
alias idldemo $IDL_DIR/bin/idldemo
# call IDL with all parameters
cd IDL/chem1d
echo starting IDL ...
idl $*
--
------------------------------------------------------------ -------
Dr. Martin Schultz
Department for Engineering&Applied Sciences, Harvard University
109 Pierce Hall, 29 Oxford St., Cambridge, MA-02138, USA
phone: (617)-496-8318
fax : (617)-495-4551
e-mail: mgs@io.harvard.edu
Internet-homepage: http://www-as.harvard.edu/people/staff/mgs/
------------------------------------------------------------ -------
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| Re: Writing on X without X device (!) [message #14549 is a reply to message #14538] |
Tue, 09 March 1999 00:00  |
Liam Gumley
Messages: 473
Registered: November 1994
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Senior Member |
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Andr� L. Bel�m wrote:
> I'm writing a procedure to process satellite images on a map projection.
> I extract the image information from a jpeg file, and then I make some
> transformations and write the result on GIF.
> But I would like to run all in batch mode because this take time and
> must be run every night.
> The problem is: how to run IDl in batch mode and use all tv, tvlct,
> map_image, and others ??
To create IDL graphics on a Unix box without being logged in, you need
two things.
The first is a Unix shell script (which is run in batch mode) which
invokes IDL. It should look like this:
#---cut here---
#!/bin/ksh
# Move to the directory where the IDL script is located
cd $HOME/avhrr
# Run IDL setup script (add IDL_PATH modifications if needed)
. /usr/local/rsi/idl_5/bin/idl_setup.ksh
# Run IDL processing script
idl script.pro
#---cut here---
The second is an IDL script which does the processing. Note that this is
a *NOT* a procedure or a function; it has no PRO, FUNCTION, or END
statements. Here's an example:
;---cut here---
;- Example of an IDL script that runs in the background on Unix
;- Set up Z buffer in 2D mode
set_plot, 'Z'
device, z_buffer=0, set_colors=256, $
set_resolution=[512,512], set_character_size=[6,9]
;- Create graphic
ncolors = !d.table_size
loadct, 39
erase, ncolors/4
map_set, /ortho, /cont, /noerase
map_continents, /fill, color = ncolors/2
map_grid, /label
;- Save graphic to GIF
tvlct, r, g, b, /get
write_gif, 'test.gif', tvrd(), r, g, b
;- Exit IDL
exit
;---cut here---
Note that instead of using an ordinary graphics window (which requires
you to be logged in), the IDL Z buffer is used for displaying graphics.
---
Liam E. Gumley
Space Science and Engineering Center, UW-Madison
http://cimss.ssec.wisc.edu/~gumley
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| Re: Writing on X without X device (!) [message #14551 is a reply to message #14538] |
Tue, 09 March 1999 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Andr� L. Bel�m (abelem@awi-bremerhaven.de) writes:
> I'm writing a procedure to process satellite images on a map projection.
> I extract the image information from a jpeg file, and then I make some
> transformations and write the result on GIF.
>
> But I would like to run all in batch mode because this take time and
> must be run every night.
> The problem is: how to run IDl in batch mode and use all tv, tvlct,
> map_image, and others ??
Z-Buffer. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
[Note: This follow-up was e-mailed to the cited author.]
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