[GrADS] How to mark the cities in the contour map?

[Qingfang Dai]

Hi Chuck and Mahakur,

It works. Thanks so much!

Qingfang


On Thu, 17 Jan 2008 13:46:34 -0500, Charles Seman wrote
> Qingfang Dai,
>
> Please try something like this:
>
> 'query w2xy 53.32 -113.58'
> xpos = subwrd(result,3)
> ypos = subwrd(result,6)
> say '    (xpos,ypos) = ('xpos','ypos')'
> 'draw mark 3 'xpos' 'ypos' 2'
>
> I hope this helps,
> Chuck
>
> Qingfang Dai wrote:
> > Hi,
> >
> > I revised my gs file as
> > 'reinit'
> > 'open ../Climatology.ctl'
> > 'set grads off'
> > 'set mproj nps'
> > 'set grid off'
> > 'set frame off'
> > 'set cstyle 1'
> > 'set csmooth off'
> > 'set cmin 0.0'
> > 'set clab forced'
> > 'set t 1 1'
> > 'set mpdset ../province'
> > 'd prep'
> > 'set font 1'
> > 'set string 1 tc 3'
> > 'set strsiz 0.15 0.15'
> > 'query w2xy 53.32 -113.58'
> > 'draw mark 3 x y 2'
> > 'printim ../climatology.gif gif white'
> >
> > But it's still not working.
> >
> > Thanks.
> >
> > Qingfang
> >
> >
> > On Thu, 17 Jan 2008 23:31:14 +0530, M.Mahakur wrote
> >
> >> Hi,
> >>
> >> Convert the lon, lat first to vpage co-ordinate using 'query w2xy lon
> >> lat' and later use the results (x and y) in the 'draw mark mark_type
> >> x y size' to mark your desired point(s).
> >>
> >> Regards,
> >>
> >> Mahakur
> >>
> >> Qingfang Dai wrote:
> >>
> >>
> >>> Hi All,
> >>>
> >>> I want to mark 2 cities in a contour map. The lattitude and longitude
of
> >>> these two cities are (53.32,-113.58 ) and (51.12,-114.02). So I used
the
> >>> command 'draw mark 3 53.32 -113.58 1' and 'draw mark 3 51.12 -114.02
1' in
> >>> the .gs file but I they didn't work. Please tell me how I can mark the
two
> >>> cities in the contour map with closed circle and cities name. Thanks.
> >>>
> >>> Qingfang
> >>>
> >>>
> >>>
> >>>
> >> ----------------------------------------------------------
> >> M. Mahakur
> >> FORECASTING RESEARCH DIVISION
> >> INDIAN INSTITUTE OF TROPICAL METEOROLOGY
> >> (Min. of Earth Sciences, Govt. of India)
> >> DR. HOMI BHABHA ROAD
> >> NCL POST, PASHAN
> >> PUNE - 411 008
> >> INDIA.
> >> -----------------------------------------------------------
> >>
> >
> >
> > --
> > Department of Math and Stat Sciences (http://www.math.ualberta.ca)
> >
>
> --
>
> Please note that Charles.Seman at noaa.gov should be considered my NOAA
> email address, not cjs at gfdl.noaa.gov.
>
> ********************************************************************
>  Charles Seman                                Charles.Seman at noaa.gov
>  U.S. Department of Commerce / NOAA / OAR
>  Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
>  201 Forrestal Road                              fax: (609) 987-5063
>  Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
> ********************************************************************
>
> "The contents of this message are mine personally and do not reflect
> any position of the Government or NOAA."


--
Department of Math and Stat Sciences (http://www.math.ualberta.ca)