Hi there, did you ask on the forum about that? There's currently a good discussion going on about how to do it. There's also a few hints on what can go wrong. http://www.flightgear.org/forums/viewtopic.php?f=5&t=3230 (Yes I know that this thread is about Windows but a lot of the things that went wrong are concerning paths. So _do_ please take a look at it.)
But from what you've written, I've got the sneaking suspicion that you are using a weird version of terragear. At least I don't know about a tool called demchop - I only know one called hgtchop. Putting that aside, thre's more: Note that genapts also needs the elevation data. Also look out for any error message the tools spit out along the lines of "cant find file <somescenrytile>.<whatever extension>". They should point you towards what's going wrong exactly. Maybe you've missed a few tiles, you need or they are in the wrong place. (One of the tools looks for the tiles in a set of hard-coded folders.) Cheers, Josef cullam Bruce-Lockhart schrieb: > I've been mucking around trying to build my own scenery for the last > couple weeks, with a VAST amount of help from Geoff McLane. I've got > it all working, and have been able to generate my own scenery. > > However, the elevation is coming out all messed up. Geoff has some > photos of how it has come out available on his site: > http://geoffair.net/tmp/cullam-01.htm > Almost all the land data is appearing completely flat, at -9999m. > There are a few pieces of land that appear at sea level. All airports > are at sea level. > > I'm working on the scenery for the island of Newfoundland. I'm using > the DEM data available from > http://geobase.ca/geobase/en/data/cded/index.html\, which has a > resolution of about 30m. According to the Terragear tools, this data > is in the correct ASCII format, and is good to go for demchop. > > After running demchop on about 380 of these files, the folder > containing the chopped elevation data is 131.1 MB. > > I then run genapts on my apt.dat file which was modified to include > airports that aren't in the official apt.dat, and to correct their > layouts. Again, there don't appear to be any problems. > > For my shapefile, I'm simply using the standard North American vmap0. > This appears to have been prepared without incident. > > And then I run fgfs-construct. After the construction is done, my > total folder size for everything just generated is 7.1 MB. This has > GOT to be where the elevation data is disappearing, but I have no idea > why. Obviously, there are massive ammounts of specifics that I could > get into, but then this question would be huge and complex. So all I'm > asking here is, does anybody have any idea where I should start > looking to figure out where this went wrong? > > > ------------------------------------------------------------------------ > Be smarter than spam. See how smart SpamGuard is at giving junk email > the boot with the *All-new Yahoo! Mail * > <http://ca.promos.yahoo.com/newmail/overview2/> > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > > ------------------------------------------------------------------------ > > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
