Robert, The files were originally PNG files that I converted per the instructions on the wiki to the .tif format. Whether or not that makes them GeoTiffs I don't know. How can I convert the files to GeoTiffs?
-Shayne -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, May 30, 2008 2:14 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgDEM usage... Hi Shayne, The wiki instructions was written in the very early days of the development of osgdem, and is awaiting a rewrite. Today I wouldn't recommend using --xx definition of the coordinate system, you are better off using geospatial imagery/dems. Are you files GeoTiff's? If so then dispense with the --xx command lines and just use: osgdem -t n39_texture.tif -d n39_height_.tif -l 4 -o myterrain/myterrain.ive The coordinates will sourced entirely from the .tif files, there will also be no need to tangle with the -v vertical scaling command line parameter. The VPB version of osgdem also will created nested directories for you hence the myterrain/ directory above. Also temporarily archive support has been removed. Robert. On Thu, May 29, 2008 at 11:46 PM, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC <[EMAIL PROTECTED]> wrote: > All, > > > > I've made an attempt in generating a database using my own height field and > texture per the instructions located at > http://www.openscenegraph.org/projects/osg/wiki/Support/UserGuides/osgdem. > > > > So far, I have not had any luck in getting the height field to display > correctly. The texture is present just fine but the terrain is either > completely flat or is uncorrelated with the texture. This is the command I'm > issuing to generate the terrain. > > > > osgdem --xx 90 --yy 90 -t n39_texture.tif --xx 90 --yy 90 -d n39_height_.tif > -l 4 -v 0.1 -o myterrain.ive -a myterrain.osga > > The height field tif file comes from a 1 degree by 1 degree of DTED that is > 3 arc second level 1, hence the reason for my spacing of 90 meters. If I > increase the -v option scaling factor from 0.1 to 50, the terrain height > shows up but it is totally uncorrelated with the texture. > > > > If anyone has any input on what I'm doing wrong or missing, it would be most > appreciated if you could point it out. > > > > -Shayne > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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