GrADS output to textfile?

[Stephen R McMillan]

Teddy,
The fwrite command produces binary, not text output.  To produce ascii 
text output of what you're currently displaying, use 'set gxout print'. 
You control the output with 'set prnopts....'  Display your data, then 
write to file using the write command.  Here's a simple example (assuming 
file is open and appropriately dimensioned):

'set gxout print'
'set prnopts %0.1f 10 1'
'd air-273.16'
dummy=write('c:/temp/output.txt',result)

Your output might look something like this:
Printing Grid -- 77 Values -- Undef = 32766
11.1 10.7 8.4 9.0 12.9 15.4 16.3 17.1 17.5 17.5 
17.6 8.3 8.6 7.0 6.3 8.2 10.3 11.7 12.4 13.0 
13.8 13.9 7.0 7.8 6.8 4.2 3.1 4.7 7.0 7.9
-2.2 0.1 2.4 3.2 3.5 0.8 0.2 -2.3 -4.3 -4.7

You could also output one grid value at a time without using 'set gxout 
print' and 'set prnopts.' The opengrads cookbook listing you referenced 
goes into more detail on the above and alternate methods. Additional 
references:
set gxout print:  http://grads.iges.org/grads/gadoc/gradcomdsetgxout.html
set prnopts:  http://grads.iges.org/grads/gadoc/gradcomdsetprnopts.html
write command:  http://grads.iges.org/grads/gadoc/script.html#intrinsic

Stephen McMillan





Teddy Allen <teddyallen at YAHOO.COM> 
Sent by: GRADSUSR at LIST.CINECA.IT
01/06/2009 05:36 PM
Please respond to
teddyallen at yahoo.com


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GRADSUSR at LIST.CINECA.IT
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Subject
GrADS output to textfile?






Dear GrADS users,
I have seen traces of information leading to the creation of .txt files 
from GrADS output generated from NetCDF files. Unfortunately, I am having 
a bit of trouble trying to accomplish this. One method says to:
 
'set gxout fwrite'
'set fwrite file.txt'
'd [variable]'
'disable fwrite'
 
While another points to a script from the cookbook: 
http://cookbooks.opengrads.org/index.php?title=Recipe-002:_Saving_GrADS_variable_data_to_a_text_file
 
 
I also try :
set gxout fwrite
d [variable]
disable fwrite
 
GrADS  then sends an output to my hard-drive, but it is not in an ascii 
.txt format.
Does anybody have a simple method to produce text output files from GrADS? 
I am not having any success in the above options. I am using GrADS 2.0 on 
a windows XP system. 
 
Thank you very much.
Sincerely,
teddy 


 
web: http://personal.ecu.edu/tla0923/HOME.html
"To move quickly, go alone. To move far, go together."
African 
Proverb                                                                                                        
*
 




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