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

Sebastian Messerschmidt sebastian.messerschmidt at gmx.de
Tue Jun 9 03:59:24 PDT 2015


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
>
>
>
>
>
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