problem with labels

[Arpita Mandal]

hi
i dont have a ocean mask file. it is the file which is generated by
running a program.in that case how do i plot the contours only over the
land mass,
regards
arpita




     WITH WARM REGARDS

     Dr Arpita Mandal
     Post Doctoral Fellow
     Planetary and Geosciences Division
     Physical Research Laboratory
     Navrangpura, Ahmedabad-380009
     Gujarat, India
     Tel No:07926314260
     Mob No:09427321259
     Email:arpita at prl.ernet.in
           arpita_mandal2000 at yahoo.com

On Thu, 27 Jul 2006, Subodh Kumar Saha wrote:

> Dear Arpita,
>
> One possibility would be to use land-sea mask data. If you have binary
> file of that, replace Ocean point values by a negative number and then
> use it in the "maskout" function.
>
> if 's' is the variable where sea points are negative and land points are
> positive (e.g. -1 for all sea points and + 1 for all land points) then,
>
>  d maskout( precipitation, s)
>
> will show the precipitation over land only, other points will be treated
> like undefined values.
>
> Regards,
> Subodh
>
>
>
> The all negative valus
>
> Arpita Mandal wrote:
>
> >hi
> >i have a binary file of precipitation data for whole world. when i plot in
> >grads for india i give the lat and lon by set lat and set lon.
> >now over india i want only the land mass not the oceans.
> >how do i do those
> >arpita
> >
> >
> >
> >     WITH WARM REGARDS
> >
> >     Dr Arpita Mandal
> >     Post Doctoral Fellow
> >     Planetary and Geosciences Division
> >     Physical Research Laboratory
> >     Navrangpura, Ahmedabad-380009
> >     Gujarat, India
> >     Tel No:07926314260
> >     Mob No:09427321259
> >     Email:arpita at prl.ernet.in
> >           arpita_mandal2000 at yahoo.com
> >
> >
>
>
> --
> ____________________________________________________
>
> Subodh Kumar Saha
> Alfred Wegener Institute for Polar & Marine Research
> Telegrafenberg A43
> D-14473 Potsdam, Germany
>
> ssaha at awi-potsdam.de
> subodhsaha at yahoo.com
> Phone: +49 331 2882116
> Fax:   +49 331 2882178
> ____________________________________________________
>