plot a marker on map by lat and lon coordinates

[Jennifer Faber]

Hi Bernd,

There is an option in GrADS to convert world coordinates into x y
coordinates.
Typ q in GrADS and you will find all the q options: one of them is q w2xy.
Just type q w2yx 44 12. It should give you the x Y coodrinates you can then
implement in draw marker.

Good luck!

Jennifer Faber

----- Original Message -----
From: "Bernd Becker" <bernd.becker at METOFFICE.GOV.UK>
To: <GRADSUSR at LIST.CINECA.IT>
Sent: Tuesday, August 18, 2009 10:59 AM
Subject: plot a marker on map by lat and lon coordinates


> Hello,
>
> how can I quickly plot a marker
> on  map, positioned by latitude and longitude?
>
> I get confused by the different plot coordinate systems and the
> conversions between them.
>
> lat=44
> lon=12
>
> d temp
> draw mark 3 lat lon 2
>
> --
> Bernd Becker   The Monthly Outlook
> Met Office  FitzRoy Road  Exeter   Devon EX1 3PB  United Kingdom
> Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050
> E-mail:bernd.becker at metoffice.com  -  http://www.metoffice.com
>