[GRASSLIST:1656] problem importing GMT grd files - CONT

Zbigniew Perski perski at us.edu.pl
Mon Nov 3 11:57:09 EST 2003


Christian s. Ferreira wrote:

> Hi,
>
>    Well, I'm importing .grd(from GMT) into GRASS with:
>    r.in.bin -sh 4-byte
>
>    Try this way, maybe works in your case. 

I have tried both: r.in.bin -sh 4-byte and r.in.bin -sh - the result is 
always wrong min=nan, max=nan or values in thousands which are not 
comparable with anything.....
When I am trying to make a profile over my data in GRASS (where min and 
max=nan) it seems that there are data  in files (profile showing 
variations between 0 and 1 which seems to be  OK)
Is it any method to even manually set correct min amd max ?????????????

Thanks!

Zbigniew

>
>    Cheers. 
> Zbigniew Perski wrote:
>
>> Hi all,
>>
>> I can not import grd files type 1 (converted with gmtreformat to format
>> 1 GMT) to Grass (5.0.2, running on i686 and i686 compiled from source on
>> those machines with Linux - kernel 2.4.22).
>> I am trying the r.in.bin -fh command and 4-byte
>>
>> The GRD file:
>> grdinfo coherence.bin=1
>> coherence.bin: Title:
>> coherence.bin: Command: xyz2grd coh.xyz -Gcoherence.grd -I1c
>> -R7:42:13/8:41:26/49:35:29/50:12:17 -V
>> coherence.bin: Remark:
>> coherence.bin: Normal node registration used
>> coherence.bin: grdfile format # 1
>> coherence.bin: x_min: 7.70361 x_max: 8.69056 x_inc: 0.000277778 units:
>> user_x_unit nx: 3554
>> coherence.bin: y_min: 49.5914 y_max: 50.2047 y_inc: 0.000277778 units:
>> user_y_unit ny: 2209
>> coherence.bin: z_min: 0.0565573 z_max: 0.991879 units: user_z_unit
>> coherence.bin: scale_factor: 1 add_offset: 0
>>
>> And Grass r.info:
>>
>> +----------------------------------------------------------------------------+
>>  | Layer:    cohrenc                        Date: Mon Nov  3 09:48:08
>> 2003    |
>>  | Mapset:   PERMANENT                      Login of Creator: knoppix
>>        |
>>  | Location: Mainz_latlon
>>        |
>>  | DataBase: /home/knoppix/grass_dbase
>>        |
>>  | Title:     ( cohrenc )
>>        |
>>
>> |----------------------------------------------------------------------------|
>>  |
>>        |
>>  |   Type of Map:  raster              Number of Categories: 255
>>        |
>>  |   Data Type:    FCELL
>>        |
>>  |   Rows:         2209
>>        |
>>  |   Columns:      3554
>>        |
>>  |   Total Cells:  7850786
>>        |
>>  |        Projection: Latitude-Longitude (zone 0)
>>        |
>>  |            N:  50:12:17N    S:  49:35:29N   Res: 0:00:00.999547
>>        |
>>  |            E:   8:41:26E    W:   7:42:13E   Res: 0:00:00.999719
>>        |
>>  |   Range of data:    min =  nan max = nan
>>        |
>>  |
>>        |
>>  |   Data Source:
>>        |
>>  |
>>        |
>>  |
>>        |
>>  |
>>        |
>>  |   Data Description:
>>        |
>>  |    generated by r.in.bin
>>
>>
>>
>> So, why min max are nan ???????????
>> What is wrong or how to make these data usable?
>>
>> Thanks in advance!
>>
>>
>> regards
>>
>> Zbigniew
>>
>>
>>
>> -- 
>> dr Zbigniew Perski
>> Geological Visualization Laboratory
>> Department of Fundamental Geology
>> Faculty of Earth Sciences at UNIVERSITY OF SILESIA
>> Bedzinska 60, 41-200 Sosnowiec
>> POLAND
>> fax: +48 32 2915865
>> phone: +48322918381 e.420
>> http://kgp.wnoz.us.edu.pl/insar
>>
>>
>
>





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