Unfortunately the licence is not GPL compatible:

Terms of Use. Unless otherwise specified, images and data downloaded from this site may be reproduced for research and private use. Links to sources are preferred to the uploading of reproductions, but if that is not possible due to the need to change the size or format, then either an acknowledgement with a link to the appropriate source page, or my written permission, is demanded. Limited commercial use is OK, but anyone contemplating large scale reproduction should contact me. Specifically, the authorised use of the DEM data on this site for use in meshes uploaded or distributed for use in flight simulators is welcome, but this use of these data by anyone who neither (i) obtains my written permission nor (ii) properly credits me or my site, is not welcome and may be restrained.

For the Web version I got permission from the site owner, but I think we're trying to be pure GPL for desktop Trigger Rally.

- Jasmine

On Thu, Jun 6, 2013 at 9:02 AM, Liviu Andronic <liv-public@myopera.com> wrote:
Dear all,
I'm once again on my goose-chase for real elevation data for use in
Trigger maps. Looking at the online version of Trigger (
https://triggerrally.com/about ), I notice that it uses Elevation data
 from Viewfinder Panoramas ( http://www.viewfinderpanoramas.org/dem3.html ).

Can we use that in desktop Trigger?


Using Opera's revolutionary email client: http://www.opera.com/mail/

How ServiceNow helps IT people transform IT departments:
1. A cloud service to automate IT design, transition and operations
2. Dashboards that offer high-level views of enterprise services
3. A single system of record for all IT processes
trigger-rally-devel mailing list