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

[M.Mahakur]

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
>
>
>


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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.
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