[osg-tds] osgTDS with coordinatesystemnode and large geocentric Databases

[Torben Dannhauer]

Hello,

 

I discovered osgTDS for terrain modification and have some trouble to get it
working.

 

I got the source, compiled it and integrated the files into my OSG
installation.

osgTDS with the example data works great and has an impressive output.

 

Unfortunalety osgTDS seems not to work with my geocentric database (WGS84)
which I build with VirtualPlanetBuilder.

During the application startup a message is displayed, that the model is not
or not completely over Terrain:  "Terrain Deformation Software:  ERROR in
Target Database Base definition:  at least one target is not completely over
terrain."

 

I have read the Documentation but there are still some beginner questions:

1.       The osgTDS loader seems to load all targets mentioned in the .tds
file by himself. Is it possible to relocate this models in my scenery to
their right place and the terrain will always be corrected the right way?

2.       How is the loading logic build? Which model/target is parent/child
of which other node, and at the end of the loading process, which node is
passed back to the application as "loaded model" ?

3.       Is there any maximum or minimum distance up to which the terrain
will be corrected to "touch" the target?

4.       Is it possible to use osgTDS for loading highdetail terrainmodels
into larger low-detail, and osgTDS will adapt the low-level model that there
is no z-fighting or things like that? Or is it better to use osgEarth for
that purpose?

5.       Is it possible to use osgTDS in combination with osgEarth? Both
projects seem to use a loader-plugin over osgDB.

 

Thanks for your help,

 

Torben

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://andesengineering.com/pipermail/osg-tds/attachments/20090522/71e5e91d/attachment.htm