[OpenLayers-Users] Converting the output of getLonLatFromViewPortPx to spherical coordinates

[Andreas Hocevar]

J. Brian Adams wrote:
> I have been trying to mimic the Click Event Example in which a single  
> mouse click triggers an alert box showing the location of the click in  
> spherical coordinates (degrees North and Ease.) In my code when I  
> click on a location the alert box shows the coordinates not as degrees  
> (ie. 40 N -76.2 E) but instead as location (4865946 N, -8482597 E)
>
> Since I need to access the data in spherical coordinates, how might I  
> transform the result from what I assume is the epsg4326 projection  
> coordinates to degrees?
>   

Just configure EPSG:4326 as displayProjection of your map, so it looks
like this:

var map = new OpenLayers.Map("map", {
    displayProjection: new OpenLayers.Projection("EPSG:4326")
});

Regards,
Andreas.



-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.