[OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Michael P. Gerlek
Consider the following hypothetical problem: Assume we have a good elevation data set for a large region of the earth -- say, an entire mountain range. Now let's say we have a photograph taken from the ground, the horizon of which shows the profile of a couple of the mountains in that range.

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Stephen Woodbridge
On 3/28/2011 4:48 PM, Michael P. Gerlek wrote: Consider the following hypothetical problem: Assume we have a good elevation data set for a large region of the earth -- say, an entire mountain range. Now let's say we have a photograph taken from the ground, the horizon of which shows the

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread andrea antonello
Hi, I can't remember the project exactly, but I think I saw do something similar those guys here: http://tev.fbk.eu/marmota/ http://tev.fbk.eu/marmota/eagleeye/ They usually are keen to open source, but I am not sure if that is the case here. In case you would have to contact them. Andrea On

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Tyler Mitchell
It's definitely in the field of augmented reality research - I had been looking for the same answer a few years ago and was pointed to a (closed access) research paper - never did get beyond that restriction :/ I'm very interested in any results you get to. Tyler On 2011-03-28, at 1:48 PM,

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Stephen Woodbridge
Ok, after thinking about this a little and doing some more googling about. It is hard to find the right terms for this question. Anyway this is one approach that I thought of. Given that you had a constrained area - what ever that might be. You might generate horizon profiles of the area based

[OSGeo-Discuss] OSGeo-Live 4.5, the Open Source Geospatial DVD, released

2011-03-28 Thread Cameron Shorter
Version 4.5 of the OSGeo Live GIS software collection has been released, along with a 25 minute video describing the 42 contributing GeoSpatial Open Source applications. OSGeo-Live is a self-contained bootable DVD, USB flash drive and Virtual Machine based upon Ubuntu Linux that is

[OSGeo-Discuss] Correct List for Newcomers

2011-03-28 Thread Bob Kerstetter
Hello, Is this the correct list for asking newbie questions? For example, I am using the decklogs from a 1940s US Navy cruiser to trace its journey's from 1942 through 1945. I know how to enter coordinates, draw lines and load maps, but where do I obtain a specific map? I need one covering the

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Dave Patton
On 2011/03/28 1:48 PM, Michael P. Gerlek wrote: Consider the following hypothetical problem: Assume we have a good elevation data set for a large region of the earth -- say, an entire mountain range. Now let's say we have a photograph taken from the ground, the horizon of which shows the

Re: [OSGeo-Discuss] Correct List for Newcomers

2011-03-28 Thread Alex Mandel
On 03/28/2011 05:43 PM, Bob Kerstetter wrote: Hello, Is this the correct list for asking newbie questions? For example, I am using the decklogs from a 1940s US Navy cruiser to trace its journey's from 1942 through 1945. I know how to enter coordinates, draw lines and load maps, but

Re: [OSGeo-Discuss] Finding position based on horizon profile?

2011-03-28 Thread Peter Batty
Dave, there's a (non open source) augmented reality application for the iPhone and Android that shows you what peaks you are looking at through your phone camera. http://peakar.salzburgresearch.at/ They say that all the data they use comes from OpenStreetMap (see the FAQ). Not sure if this is

[OSGeo-Discuss] Best software for making TMS tiles

2011-03-28 Thread Peter
I havent been able to figure out how to turn a QGIS map into tiles. The reason i want to do this is because our hardware isnt capable fo running a wms (low ram, hdd), but with a bit of hodge and podge we can host the TMS tiles using S3. The only options ive been able to find so far are: qgis,