[osg-users] [vpb] Correct way to get texture data from USGS or any other source?

[Christian Schulte]

Hello!

I totally agree with Sebastian. These data is surely geo-referenced, as 
I myself often used in the past data from USGS. Locking at the metadata 
you provided I would say that you are in an EPSG:2238 Lambert Conformal 
Conic projection, which is the main projection system for north Florida. 
You may try to specify to GDAL the source projection using this EPSG code.

Regards,

Christian

Le 09/06/2015 12:59, Sebastian Messerschmidt a écrit :
> Am 09.06.2015 um 11:35 schrieb Elias Tarasov:
>> Hello!
>> I try to build map using vpb in ECEF.
>> According to manuals i've read it needs to start:
>> vpbmaster --geocentric -t texture_file -o output_file
>> So, clearly i need georeferenced texture file.
>> On that page:
>> http://www.osgvisual.org/projects/osgvisual/wiki/OsgTerrainData
>> there is a bunch of links to get data. Since --geocentric option 
>> allows not to use elevation data, then only textures are needed.
> Who told you this? Of course you can use elevation data in geocentric 
> mode ...
> Simply use -t for imagery and -d for digitial elevation data
>
>> And here is a problem: i can't get georeferenced textures from USGS.
> They are referenced, but in a non-supported coordinate frame. I never 
> had problems of this kind yet.
> But there are definitively geo-referenced data-sets on USGS, as I'm 
> using them myself.
> Use LandSAT imagery, which is WGS84 projected, so there should no 
> problems here.
> If you need some sample data I can share a small set on googledrive etc.
>
>
>> All files i choose from different sets there are without 
>> georeferenced information.
>>
>> gdalinfo output:
> ...
> Yes it seems there is no valid projection. But still the data is 
> referenced.
>>
>>
>>
>> What am i doing wrong?
> Without having your data, this is hard to tell
>> Thanks a lot and best regards!
>>
>> Elias
>>
>> ------------------
>> Read this topic online here:
>> http://forum.openscenegraph.org/viewtopic.php?p=63998#63998
>>
>>
>>
>>
>>
>> _______________________________________________
>> osg-users mailing list
>> osg-users at lists.openscenegraph.org
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org 
>>
>
> _______________________________________________
> osg-users mailing list
> osg-users at lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>


-- 
SCHULTE Christian
Ingénieur Recherche
Responsable du Laboratoire de Simulation
ONERA - DCSD/PSEV
Département Commande des Systèmes et Dynamique du Vol
ONERA - Centre de Salon de Provence
BA 701
13661 SALON AIR Cedex - France
Tel :04.90.17.01.45