Can we add marker in google Map using XY co ordinates

[Anirudha]

Hi
I am using Google map in my application.
I am adding marker on Google map by using LAT/LONG of the point as
shown below

var marker = new google.maps.Marker({ position: new
google.maps.LatLng(LatValue,LongValue), map: map, title: MyTitle,
icon:MyIcon });

But it is found that in my case instead of LAT/LONG values , XY co
ordinates are available.
So can we plot marker using XY co ordinates something like this

var marker = new google.maps.Marker({ position: new
google.maps.LatLng(X Co ordinate,Y Co ordinate), map: map, title:
MyTitle, icon:MyIcon });

Is there any formula/method of converting XY co ordinate to LAT/
LONG?

Thanks & Regards,
Anirudha Deshpande

[geoco...@gmail.com]

There are lots of them. You need to know the coordinate system that x
and y are in (are they pixels?) and their units.

Usually on a _map_ (particularly one like google maps which uses a
mercator projection), latitude and longitude make the most sense.

-- Larry

[Martin™]

You can read about coordinates here:

http://code.google.com/apis/maps/documentation/javascript/maptypes.html#CustomMapTypes

And post #5 in this thread explains a bit about the options to convert
between different coordinate systems:

https://groups.google.com/group/google-maps-js-api-v3/browse_frm/thread/dfcc8b0900dd5132/cff528c470f74a12?hl=en&lnk=gst&q=martin+world+coordinates#cff528c470f74a12

Martin.