[gradsusr] Programming a Tab in ASCII file within Grads

[Goodson,Ron [Edm]]

Just as an alternate suggestion... rather than fighting with grads, I'd
be tempted to just write the text output with some character or text
which denotes that it should be a tab .. and then run the output through
"sed" or similar to turn your chosen character/text into a tab.

In general .. if I'm using grads to produce output for other purposes,
it is sometime better to produce a generic file from grads and
post-processing to produce a file tailored to the target applications.
This is most useful if you have a bunch of applications which all want
much the same data in different formats.. which you probably don't have

... just a thought...

ron





-----Original Message-----
From: gradsusr-bounces at gradsusr.org
[mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Mac
Sent: November 7, 2011 11:19 AM
To: GrADs Digest - User Group
Subject: [gradsusr] Programming a Tab in ASCII file within Grads

Good afternoon Folks,

I am generating WRF model output for the centroid of a hydrologic
sub-basin for input to the DHI Mark 11 Hydrologic model as part of a
project.

The DHI have provided a proprietary program to convert precipitation and
evaporation values required as input to the Mark 11 model from am ASCII
file format to their proprietary binary format.

There is a requirement to place tabs in the header recorders of the
input ASCII file.

Here is the code section:


******  Write Header records for precipitation *****

valh = " final"
rc = write(filename1, valh)
valh1 = " Time"%^I%Rainfall"
rc = write(filename1, valh1)
valh2 = " Unit      100004        1002           0"
rc = write(filename1, valh2)

I need three spaces between Time and Rainfall and the DHI executable
expects a tab to provide the 3 spaces.  Similarly it requires a tab for
6 spaces between Unit and 100004,  a tab for 8 spaces between 100004 and
1002 and a tab for 11 spaces between 1002 and 0.

The ASCII table character for tab is hex 09 or control I.  I tried ^I as
given in the ASCII table for tab but the GrADS program gave a syntax
error message .

How does one get this in a script to produce the required tab commands?


Thanks in advance for your help.

Sincerely

Mac MacLeod

--
M.A. (Mac) MacLeod,
President and General Manager,
Scotia Weather Services Inc.,
11 Thornhill Dr., Suite 240,
Dartmouth, N.S. B2B 1P9
Tele: 902-468-3866, Cell: 902-225-5747
e-mail: mmacleod at scotiaweather.com
web: www.scotiaweather.com

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