Hi Adrian I had some mail exchange with Jonathan Ferranti/Viewfinderpanorama two years ago and he wrote me that he has no objection to my use of this data for terragear purposes (I planned a small and personal scenery project with this data two years ago and was sending a lot of requests around the world, always asking if this could be used for a GPL project). Generally Viewfinderpanorama needs credits for this of course, but it looks like the data is available for FlightGear/TerraGear projects, indeed.
To say it in words of Jonathan Ferranti: "I hope that you find the data useful and that they will contribute to the quality of your scenery." Later I realised in discussion with Martin Spott that the World Scenery Project is "well known" at Viewfinderpanorama and that I just replicated what was already organized/prepared by Martin. It looks like the World Scenery Project already made use of this data and that parts of the data are also available via mapserver (not sure about, that has Martin Spott to point out probably, we had some exchange about this data because of my recent HGT-work some days/weeks ago, but I’m not sure about the recent status of such directories). Plans are (or should be) to have 1-2 servers where all this data is available as a "data central" with some consistency like Martin Spott always intended to have, and the flightgear mapserver with its infrastructur will be primary, even when I plan to make it available also here on my swiss servers (the fgx server, which has a good or at least sufficent backbone too). The origin reliefs will probably not be available on other servers. The problem here is that it takes ~ 300 GB space at the end, and maybe it’s also fairly experimental. But the tilecache produced with this data will be available, so when someone wants to use that relief service for a map it will show up in near future (hopefully!). Ehrm, this kind of work and data has "Slow Food"-Labeling ;-) -Yves Am 11.12.12 20:29, schrieb Adrian Musceac: > >> >> Hi Christian >> >> Nice to hear that there are some plans (?) with extending gdalchop. As I >> mentioned earlier I’m preparing 5x5 degree tiles of all the SRTM data in >> geotiff format to use with terragear (just in case someone wants to give >> it a try once, I use it for my reliefs and this 5x5 tiles are a side >> effect of processing this data). A 5x5 degree geotiff uncompressed will >> have around 72 MB. >> >> When it’s useful and gdalchop can handle this I can prepare the data >> with LZW compression, which makes it a bit faster, at least for the >> download ;-) Recently the compressed geotiff files will take about 25-30 >> GB for the "HGT-SRTM-World" coverage. >> >> The tiles have 6001 x 6001 pixels in EPSG:4326 projection. For the >> reliefs I needed to reproject the data to other projections (EPSG:3857 >> or i.e. 3112) and I used gdalwarp for this with lanczos interpolation, >> which gives me the best results for reliefs. Iin a graphical sense of >> course, I don’t know if it would be also the case for other purpose with >> lanczos. >> >> -Yves >> > > > Hi Yves, > > Having SRTM data available without the "normal but slightly restrictive" CGIAR > license would be a nice plus. > I do remember from FS2004 that there was a guy who had very detailed data > based on local topo maps and DEM's, his name was Jonathan de Ferranti and the > FS terrain was compiled by Holger Sandmann. > http://www.viewfinderpanoramas.org/dem3.html was the URL. > Can we get ahold of such detailed elevation maps, which far surpass SRTM, > especially for the Alps but other mountainous areas too? And could we use > this? > > Cheers, > Adrian > > ------------------------------------------------------------------------------ > LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial > Remotely access PCs and mobile devices and provide instant support > Improve your efficiency, and focus on delivering more value-add services > Discover what IT Professionals Know. Rescue delivers > http://p.sf.net/sfu/logmein_12329d2d > _______________________________________________ > Flightgear-scenery mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/flightgear-scenery > ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Flightgear-scenery mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-scenery
