Hi Nick, On 29 November 2016 at 18:20, Trajce Nikolov NICK <trajce.nikolov.n...@gmail.com> wrote: > I need the idea this time :-) .... This hurts my head for few days already > :-) > > As the subject says, I have VPB database, geocentric. And this is quad tree > with many LODs and it is PagedLOD based. How to isolate specific LOD and > display only that LOD? Quite challenging, uhm ...
There isn't any specific support for this in the OSG so you'll need to implement it yourself. Essentially you'll need to traverse down the database loading subgraphs until you get to the level of interest then do your operations on that. The closest example code to doing this would probably be the intersection utilities in osgSim such as osgSim::LineOfSight - these intersection utilities have a helper class that does the loading as the intersection utility drills down into the dataset. The other approach you could take would be to use the naming of the tiles on disk as a cue to what subgraphs contain the PagedLOD you are looking for. Robert. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
