have you tried using gdal_merge.py to stitch them together
initially and then submit the final image to osgdem to
create the terrain database? if the discontinuities exist
in the final image, there may be some discrepancies in the
original data.
--- On Wed, 8/6/08, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC <[EMAIL
PROTECTED]> wrote:
> From: Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC <[EMAIL PROTECTED]>
> Subject: [osg-users] osgdem and UTM terrain tiles...
> To: [email protected]
> Date: Wednesday, August 6, 2008, 6:31 PM
> Using the GDAL tools, I've built a mosaic of terrain
> tiles that I'm
> stitching together using osgdem to create a terrain
> database. Each terrain
> tile uses a UTM mapping that is reprojected from a lat/long
> mapping.
> Unfortunately when I do the reprojection for each tile, the
> terrain tile
> gets slightly shifted so that when I stitch them all
> together using osgdem,
> I have discontinuities at each tile boundary in the
> finished terrain
> database.
>
>
>
> My question is, is there a way to avoid this nasty artifact
> using either
> GDAL or osgdem? Perhaps I need to resort to another tool to
> massage the data
> before handing it over to osgdem?
>
>
>
> Thanks for any input in advance.
>
> -Shayne
>
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