[gradsusr] 64-bit erroneous values grads-2.0.1

[Jennifer Adams]

Oops! I posted a reply to the wrong thread. This is where this response belongs…

I got this: 

Scanning description file:  test.ctl
Data file S10216956_201111201830 is open as file 1
LON set to -100 -25.24 
LAT set to -56 12.52 
LEV set to 1 1 
Time values set: 2010:3:21:17 2010:3:21:17 
E set to 1 1 
ga-> d cls
Contouring: 5000 to 65000 interval 5000 

The display is very noisy but the range of values appears to be correct. I will assume the patch to gaio.c for 2-byte data is working correctly for your data. If you can build GrADS from source and you want to try to implement the patch in a local build, let me know. Otherwise, you'll have to wait for our next release.
--Jennifer



On Apr 18, 2012, at 11:21 AM, David Adams wrote:

> Hi Jennifer,
> here is an example binary  file with the appropriate ctl.
> 
> thanks,
> Dave
> 
> On Wed, Apr 18, 2012 at 6:46 AM, Jennifer Adams <jma at cola.iges.org> wrote:
> I have recently patched the code for reading 2-byte shorts. Could you send me the binary file that goes with your .ctl so I can make sure it is working with the patch? 
> --Jennfier
> 
> 
> On Apr 17, 2012, at 1:44 PM, David Adams wrote:
> 
>> Dear Gradsusers,
>> I am migrating to a 64-bit Linux desktop with Fedora 16.  I have installed 
>> grads-2.0.1-bin-CentOS5.6-x86_64.tar 
>> 
>> My GOES 12 Channel 4 (binary) data are giving me strange values.I have tried with byteswapped and without and the values are incorrrect.The pattern of the incorrect values (brightness temperature) are correct which I  assume means that the binary values are simply not being read right.These binary data works fine with the same ctl on my 32-bit  Fedora Core 10 box and the following version of grads
>> 
>> grads v2.0.a8 
>> DSET ^S10216956_201110020515 
>> OPTIONS yrev byteswapped
>> UNDEF  0
>> TITLE  Temp. Brilho para America do Sul
>> XDEF 1870 LINEAR  -100.00  0.04
>> TDEF 1714 LINEAR  -56.00  0.04
>> ZDEF   01 LEVELS 1 1 
>> TDEF    1 LINEAR 17:00Z21mar2010 30mn
>> VARS 1 cls    0 -1,40,2,1 'Temp.
>> ENDVARS
>> For byteswapped, 
>> a particular value  is 112
>> for not byteswapped the same value is 65458
>> The correct value is 28850  (i.e., 288.5K)
>> Any ideas,
>> thanks,
>> Dave
>> _______________________________________________
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>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
> 
> 
> 
> 
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> 
> <S10216956_201111201830.gz><test.ctl>_______________________________________________
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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