[osg-users] (VPB) osgdem not providing terrain heights with --tile-terrain-size --tile-image-size options

[Robert Osfield]

Hi Scott,

If you want low res elevation data but high res imagery, and you have
high res elevation data and imagery then why not just swop out the
high res elevation data for data at the res you want.  gdal has tools
to changing the res of data, why not try this out.

You can use -l to limit levels, and --tile-terrain-size to do
something similar but explain how all this works is far more work than
doing the above.

Robert.

On Mon, Mar 31, 2008 at 5:22 AM, Hulet, Scott S <scott.s.hulet at lmco.com> wrote:
> Robert,
>
>  If I limit the number of levels, will I not be displaying lower
>  resolution imagery as well?  I would like larger terrain trinagles (and
>  regions) at the finest level, but maintain my highest resolution input
>  imagery.  For instance, it would be acceptable if I had 400m terrain
>  tiles at the finest res level with 512x512 image tiles.  This would
>  equate to .78125 meters/texel resolution.
>
>
>  > The tile dimensions aren't controlled in size, it's purely done in
>  > post dimensions.  If you don't need high res heights then just set the
>  > --tile-terrain-size <size> to something like 16 and then limit the
>  > number of levels provide using -l <numlevels>.
>
>  Scott S. Hulet <mailto:scott.s.hulet at lmco.com>
>
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