GE plugin topology information

[dorisz olajos]

My web application starts with a Google Earth Plugin displaying a
national park in Budapest. I want to create a button that when user
presses it, the topology of the scene
(I mean the terrain information with the heights of the ground etc )
will be saved in an XML file. Any ideas how? Your help is very much
appreciated.

[fraser (Earth API Guru)]

Hi,

Whilst it is technically possible to extract terrain and image data
from the plug-in the terms of service disallow it.
See section 10.6 http://code.google.com/apis/maps/terms.html
Also, it should be noted that the terrain data itself is copyrighted
material.

Ideally you should look at commercial or freely available
alternatives.
Here are a number of free options.

NASA's Global Digital Elevation 30mx30m resolution data (from
stereoscopic thermal imagery):
http://www.nasa.gov/topics/earth/features/20090629.html

WebGIS 30mx30m resolution data:
http://www.webgis.com/terr_world.html

USGS Seamless Server 10mx10m resolution data (International Data):
http://seamless.usgs.gov/index.php

Hope that helps.

F.