Hi,
One approach would be to download Google Earth client and view the
terrain model from your camera position. Google has many of the well known
peaks as its "Places of Interest" layer. If those are not adequate the GNS
names dataset is available for international data and has an OGC WMS WFS
service which could be used to overlay GE,
http://earth-info.nga.mil/gns/html/index.html The WFS output would need to
have a kml conversion step.
A relatively simple mashup could use the Google Earth API and
connect to a proxy servlet that queries GNS WFS for summit name features.
The resulting GML is then converted and exported as kml. Google Earth can
then point at this servlet to obtain a summit layer. The key is knowing (or
finding) the camera location and view angle. These can be programmatically
set using the Google Earth API. Another reason to have GPS tagging on photo
attributes.
http://code.google.com/apis/earth/documentation/reference/index.html
http://code.google.com/apis/earth/documentation/reference/interface_kml_look
_at.html this would be useful for setting up the camera position v iew
rkgeorge
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Abhijit Menon-Sen
Sent: Tuesday, December 30, 2008 2:12 AM
To: [email protected]
Subject: [Geowanking] identifying peaks
Hi.
Suppose I have a photograph of some mountain peaks, and I know where the
photograph was taken from, and I want to identify the peaks. Given SRTM
data and scanned topo maps of the region, how difficult would it be to
project what the skyline would look like from where the photographer
was, to aid in identification?
Any ideas about how to do this (preferably with free software) or
pointers to things to look at would be greatly appreciated.
-- ams
P.S. For a little inspiration, here are a couple of photographs of peaks
in the Himalayas. :-)
http://toroid.org/misc/peaks-1.jpeg
http://toroid.org/misc/peaks-2.jpeg
(I know most of the peaks in the second picture, but I'm interested in
the general problem more than identifying these specific peaks.)
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