[gradsusr] Help

[gibies george]

Krish,

When we are focusing on Pacific ocean, it is better to vary longitude from 0
to 360, so that we can get 180E at the central  portion of the plot. But, I
think, it is not supported by Robinson projection. I once tried the
following code

'open ../data/sst.ctl'
'set mproj robinson'
'set lat -90 90'
'set lon 0 360'
'set t 1'
'd sst'

For this I recived an error message as follows.

"Map Projection Error:  Invalid coords for Robinson
  Will use linear lat-lon projection"

I expect that this may be the problem facing by Anuradha.


On 4 May 2010 14:32, krishnamohan <krishmet at gmail.com> wrote:

> Hai Anuradha,
>
> I dont know whether spherical map projection is available but you can use
> Robinson projection which is similar for this purpose. The easy method is to
> use map.gs form grads script library
>
> http://grads.iges.org/grads/gadoc/library.html
>
> copy it to grads library or you data folder. then type "map". There you
> have several options in which you select "robinson". Then plot the varible.
> It will be like the attached figure. Also i am attaching a copy of the
> map.gs file
>
> krishnamohan
>
> --
> Krishnamohan.K.S
> Junior Research Fellow
> Department Of Atmospheric Sciences
> Cochin University of Science and Technology
> Cochin,India
>
>
> On Tue, May 4, 2010 at 11:53 AM, <anuradha.modi at iccsir.org> wrote:
>
>> Dear Users,
>> Can anybody suggest how to plot a global data in spherical map projection
>> in grads
>> I attached a example plot ( made in ferret),
>> Same kind of figure can be plotted in grads?
>>
>> I found these options, but I did not find a right option for my
>> requirement ( figure attached)
>>
>> set mproj *proj*
>>
>> Sets current map projection. Options for *proj* are:
>>
>>
>>
>>    latlon      Lat/lon projection with aspect ratio maintained (default)
>>    scaled      Lat/lon aspect ratio is not maintained; plot fills entire
>>    plotting area
>>    nps         North polar stereographic
>>    sps         South polar stereographic
>>    lambert     Lambert conformal conic projection
>>    mollweide   Mollweide projection
>>    orthogr     Orthographic projection
>>    robinson    Robinson projection, requires set lon -180 180, set lat
>>    -90 90
>>    off         No map is drawn; axis labels are not interpreted as
>>    lat/lon
>>
>>
>>
>>
>> Kindly Suggest.........
>> Thanks in Advance
>> Anuradha
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>


-- 
Gibies George,CSIR-RF,
Climate and Global Modelling Division,
Indian Institute of Tropical Meteorology,
Dr. Homi Bhabha Road,
NCL (P. O.), Pashan,
Pune 411008

http://sites.google.com/site/gibiesge/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20100504/0e96fb2a/attachment-0003.html