Re: grdcut: Error cutting over +/-180° longitude

Kristof Koch <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]>
Dear Paul,

I'd say so:

$ grdinfo ETOPO1_Ice_g_gmt4.grdETOPO1_Ice_g_gmt4.grd: Title: ETOPO1_Ice_g_gmt4.grd
ETOPO1_Ice_g_gmt4.grd: Command:
ETOPO1_Ice_g_gmt4.grd: Remark:
ETOPO1_Ice_g_gmt4.grd: Gridline node registration used [Geographic grid]
ETOPO1_Ice_g_gmt4.grd: Grid file format: ni = GMT netCDF format (32-bit integer), COARDS, CF-1.5
ETOPO1_Ice_g_gmt4.grd: x_min: -180 x_max: 180 x_inc: 0.0166666666667 name: Longitude [degrees_east] nx: 21601
ETOPO1_Ice_g_gmt4.grd: y_min: -90 y_max: 90 y_inc: 0.0166666666667 name: Latitude [degrees_north] ny: 10801
ETOPO1_Ice_g_gmt4.grd: z_min: -10898 z_max: 8271 name: z
ETOPO1_Ice_g_gmt4.grd: scale_factor: 1 add_offset: 0
ETOPO1_Ice_g_gmt4.grd: format: classic

The Version of GMT I'm using is 5.1.1_r12890 [64-bit] on Ubuntu 12.04.4 LTS (GNU/Linux 2.6.32-042stab084.17 x86_64)

Am 23.03.2014 um 19:52 schrieb Paul Wessel <[email protected]>:

> Does grdinfo say your etopo1 grid is geographic?  If not you will have to add -fg.
> 
> Sent from my iPad
> 
>> On Mar 23, 2014, at 12:31 AM, Kristof Koch <[email protected]> wrote:
>> 
>> Dear List,
>> 
>> I'm trying to cut the ETOPO1 grid. My script works as desired as long as -R doesn't span over +/-180° longitude, however I get the following error trying to cut over +/-180° longitude:
>> 
>> grdcut: Error: grid x range <= 0.0
>> grdcut (GMT_grdcut): Unacceptable PLOT_DEGREE_FORMAT template. A not allowed [/tmp/apollodor-8GOUnDRc/tmp_elevation_data_raw.grd]
>> 
>> the relevant snippet of code:
>> 
>>       TERRAIN_BOUNDARIES=75/17/-124/79
>> 
>>   grdcut \
>>       ETOPO1_Ice_g_gmt4.grd \
>>       -G"${WORK_DIR}"/tmp_elevation_data_raw.grd \
>>       -R"${TERRAIN_BOUNDARIES}"r
>> 
>> After studying the grdcut manpage, I'm not quite sure how to make it work. Any hints are welcome.
>> 
>> All the best,
>> Kristof Koch
>> 
>> --
>> My PGP Public Key: http://kristofkoch.de/pgp/
>> 
>> 
>> To unsubscribe, send the message "signoff gmt-help" to [email protected]
> 
> To unsubscribe, send the message "signoff gmt-help" to [email protected]


--
My PGP Public Key: http://kristofkoch.de/pgp/


To unsubscribe, send the message "signoff gmt-help" to [email protected]
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