[Gdal-dev] DEM projection conversion

[Jean-Denis Giguere]

Hi list,

I have USGS-DEM data and I would like to convert them in rasters in 
Lambert projection. I want to use these rasters with MapServer. I have 
tried to convert them in several format (pcidsk, hfa and bt) with 
gdalwarp, but the output rasters are always envelopped and I have bad 
result when I use gdaltindex after.

This is a sample execution of gdalwarp, maybye I don't use correct 
options...
$ gdalwarp -of BT \
-s_srs '+proj=latlong +datum=NAD83' \
-t_srs '+init=epsg:42304' \
some_dem_file some_dem_file.bt

Any idea to solve this problem will be greatly appreciated.

Thank you,

Jean-Denis