<br />
Hi Subhadeep,<br />
One example of w2xy (world coordinate to xy coordinate):<br />
<br />
In case you want to draw some line and some point at a particular lat/lon of your figure, you need to know the XY coordinate for that grid point as grads doesn't take the direct lat/lon value. So by defining w2xy, your lat/lon will convert to XY coordinate, which you can use in GrADS plot.<br />
Similarly you can follow for others.<br />
<br />
Satyaban<br />
<br />
On Fri, 21 May 2010 12:57:10 +0530 wrote<br />
>Dear users,<br />
<br />
In grads, we have many conversions like xy2w, xy2gr, w2xy, w2gr, gr2w, gr2xy, ll2xy, pp2xy.<br />
<br />
What is the difference between these different co-ordinate systems like, world coordinates, grid coordinates, XY coordinates, LON/LAt coordinates and page coordinates ? <br />
<br />
<br />
Can anyone having idea about these explain me?<br />
<br />
thanks and regards,<br />
<br />
Subhadeep<br />
IITM, Pune, India.<br />
<br />
_______________________________________________<br />
<br />
gradsusr mailing list<br />
<br />
gradsusr@gradsusr.org<br />
<br />
http://gradsusr.org/mailman/listinfo/gradsusr<br />
<br />
<br><br>########################################################<br />
Dr. Satyaban Bishoyi Ratna<br />
CDAC, Pune, India<br />
<br />
########################################################<br><Table border=0 Width=644 Height=57 cellspacing=0 cellpadding=0 style="font-family:Verdana;font-size:11px;line-height:15px;"><TR><td><A HREF="http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?" target="_blank"><IMG SRC="http://sigads.rediff.com/RealMedia/ads/adstream_nx.ads/www.rediffmail.com/signatureline.htm@Middle"></A></td></TR></Table>