[Freegis-list] Newbie Question

[Nico de Haen]

This calculator gives only the geoid height, not the height of the 
surface above sea level.
(For Mount Helen,  46°11'49.01"N, 122°10'35.45"W it shows 4.15 m...)

Any other ideas?



--- Original Nachricht ---
Absender: Mateusz Łoskot
Datum: 16.02.2006 18:57
> Nico de Haen <mail <at> ndh-websolutions.de> writes:
>> 
>> I wonder if it is possible to get the altitude of a certain geographic 
>> point (for which I have the Latitude and Longitude) via a web service 
>> or another API from some Server in the internet.
>> 
>> I'm programming in PHP and would appreciate if someone could provide 
>> an example.
>> 
> 
> I only know this Geoid Calculator:
> 
> http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/intpt.htm
> 
> It should be easy to fill this form from PHP ;-)
> 
> Cheers
>