Brad,

Thanks for the feedback. Any further enlightenment you can provide would
be most helpful.

I don't know what source data Torben is using but I'm using raw DTED
data (i.e. n41.dt1) geocell tiles. When I build from my source using
just osgdem, things build fine. It's when I use vpbmaster that I run
into problems...on the exact same data source. If it were problems
associated with the data, I would think that I would see problems
building with osgdem.

On the output bounds, is there a need to specify these manually if the
source data has this information in it already? If I do gdalinfo on each
of my terrain files, it reports lat/lon corner coordinates as present...

Again, thanks for your help. I can try what you suggest below to see if
it makes any difference. Let us know if you find anything further...

-Shayne

-----Original Message-----
From: osg-users-boun...@lists.openscenegraph.org
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of
Christiansen, Brad
Sent: Thursday, January 12, 2012 1:05 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] [vpb] Large VPB Database build fails without

Hi,

Just to let you know, I regulary build DEM only data sets and havent run
into this problem, so it might be something to do with your particular
data. Having said that, I always manually specify the output bounds so
maybe that is why I havent had an issue.


An examaple command I run is:
vpbmaster.exe --run-path "D:\BuildArea\CanberraDTED2" --geocentric -ge
-180 -90 360 180 --add --layer 0 --tile-terrain-size 32
--tile-image-size 256 --layer-inheritance no -l 99 -d
"..\CanberraDTED2_Data" -o "data/CanberraDTED2.ive"

The bit specifying the bounds is -ge -180 -90 360 180.

I will try a test using your commands when I back at the office and let
you know if I can reproduce the problem.

Cheers,
Brad


-----Original Message-----
From: osg-users-boun...@lists.openscenegraph.org
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of
Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC
Sent: Thursday, 12 January 2012 6:20 AM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] [vpb] Large VPB Database build fails without

I agree with Torben here. 

There is no usage of texture or images anywhere in this problem. Only
elevation data is being fed to vpbmaster when the hiccup occurs. What's
strange is that running a single osgdem on the problem as a whole builds
the database just fine. It's when osgdem runs in a subset role via
vpbmaster that things blow up.

If I issue the command

vpbmaster --TERRAIN --geocentric -d /my/dted/path -o elev.ive

or

osgdem --run-path /my/dted/path -s build_master.source --subtile 2 0 4
(the task that fails)

it blows up. On the other hand if I do

osgdem --TERRAIN --geocentric -d /my/dted/path -o elev.ive

It builds just fine and I can use osgviewer to look at the resultant
terrain.

-Shayne

-----Original Message-----
From: osg-users-boun...@lists.openscenegraph.org
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Torben
Dannhauer
Sent: Wednesday, January 11, 2012 6:01 AM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] [vpb] Large VPB Database build fails without

Hi Robert,

this issues seems to be independent from reprojection aspects:
it occurs as soon as a database setup contains DEM data wich is not
covered with texture data.
All data is reprojected in the corrected way. 
Regarding the latter I am sure because I used exactly the same data
later on for my database - I was simply not able to exclude texture data
from my DB to avoid this issue..

Thank you!

Cheers,
Torben

------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=44756#44756





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