Hi Terry,
On Tue, Apr 20, 2010 at 12:20 AM, Terry Welsh <[email protected]> wrote:
> 1. Units. My database defaults to being built in degrees.
VPB defaults to the coordinate system of your source data unless you
specify a different coordinate system. Using --geocentric will
provide a ECEF coordinate system in metres (typically used for whole
earth databases), or you use --cs "coordinate system string", from
osgdem --help you get:
--cs <coordinates system string> Set the coordinates system of source
imagery, DEM or destination database.
The string may be any of the usual
GDAL/OGR forms, complete WKT, PROJ.4,
EPS.
> 5. I'd like to be able to specify a minimum number of levels to build
> for the whole database, and then build more levels where there is
> high-res imagery. So far I can't find any way to do this. Without
> this I'd be building a huge number of tiles that don't have
> high-enough-res elevation or image data to justify their existence.
Use --levels prior to a set of data on the command line to specify the
range at which this source will provide data for, again from osgdem
--help:
--levels <begin_level> <end_level> Specify the range of lavels that the
next source Texture or DEM will
contribute to.
Robert.
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