Re: Changing the axis projection

David Pedreira <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]>
Hi Janosch,

Sorry for the delay in answering... The philosophy of the procedure is the same: you need to have the geographic lat/lon coordinates of the lower-left and upper-right corners of your map. You can plot your original map with -Jx and without boundary annotations, and then overlay the geographic information of the axis using psbasemap, -Ju (using the same scale), -R (defined with the lat/long of the two corners) and -B with the desired annotation interval. 

Cheers,
David


-----------------------------------------
David Pedreira
Área de Geodinámica Interna
Departamento de Geología
Universidad de Oviedo
C/ J. Arias de Velasco, s/n
33005 Oviedo
SPAIN

Phone: +34 985 10 31 79
Fax: +34 985 10 31 03






El Jan 28, 2014, a las 4:48 PM, Janosch Hoffmann escribió:

> Hi David,
> 
> I had a look at the link. This script seems to be for adding UTM data to a stereographic projection. I want to add WGS lat/lon instead of UTM. Do you know how to do this?
> 
> Cheers
> 
> Janosch
> 
> From: World-Wide GMT Usage and Help Mailing List <[email protected]> on behalf of David Pedreira <[email protected]>
> Sent: Wednesday, 29 January 2014 1:20 AM
> To: [email protected]
> Subject: Re: [GMT-HELP] Changing the axis projection
>  
> 
> Dear Janosch,
> 
> I think this link contains all the information you need to do what you want:
> http://tabs.gerg.tamu.edu/gmt/GMT_Docs/node151.html
> 
> 
> Cheers,
> David
> 
> 
> -----------------------------------------
> David Pedreira
> Área de Geodinámica Interna
> Departamento de Geología
> Universidad de Oviedo
> C/ J. Arias de Velasco, s/n
> 33005 Oviedo
> SPAIN
> 
> Phone: +34 985 10 31 79
> Fax: +34 985 10 31 03
> 
> 
> 
> 
> 
> 
> El Jan 28, 2014, a las 2:17 PM, Janosch Hoffmann escribió:
> 
>> Hi all,
>> 
>> Hopefully some one can help me. I currently have a map of a section of Antarctica. The data I am plotting is in the Antarctic stereographic projection. I am using the following command to create it:
>> 
>>   x_min=500000
>>   x_max=2350000
>>   y_min=500000
>>   y_max=2000000
>> 
>>   project_size=1:10000000
>>   scale=250000
>> 
>>  psbasemap -Jx$project_size -R$x_min/$x_max/$y_min/$y_max -B$scale -K > $plotfile
>> 
>> My problem is I want to plot this exact region and have the map look exactly the same except I want lat/lon instead of metres on the axis bars. Is there any way of doing this. Do I need to transform the coordinates to lat/lon for this to work?
>> 
>> Here is a link to an output ps file:
>> 
>> https://drive.google.com/file/d/0B9_1YzkpQ28JamJiVGpHRDJ0YUU/edit?usp=sharing
>> 
>> Cheers
>> 
>> Janosch Hoffmann
>> To unsubscribe, send the message "signoff gmt-help" to [email protected]
> 
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