[Mapserver-users] Math

[Ryan, Adam]

Also, remember that image y values start at the top, where coordinate system
y values are  typically lower on the bottom, so your client side calculation
will need to take that into consideration. 

Adam

-----Original Message-----
From: Eric Katherman [mailto:vaiod at berloy.com] 
Sent: Wednesday, June 02, 2004 2:42 PM
To: mapserver-users at lists.gis.umn.edu
Subject: [Mapserver-users] Math


Okay... This is confusing me.. how does mapserver know where to "move" to
when 
a user clicks the map.  It is returning mapa_x and mapa_y points of say
x:345 
and y:233.  How are the extents calculated from this? Also how does scale 
play into the extents?

Thanks,
Eric
_______________________________________________
Mapserver-users mailing list
Mapserver-users at lists.gis.umn.edu
http://lists.gis.umn.edu/mailman/listinfo/mapserver-users