Hi,<br><br>When trying to run the following:<br>gdalwarp -s_srs EPSG:4269 -t_srs EPSG:4326 -rc -of HFA sourcefile destfile<br>I get the following error:<br>Error 1: Unable to compute a transformation between pixel/line and georeferenced coordinates for sourcefile. There is no affine transformation and no GCP's.
<br><br>When running gdalinfo no coordinate system is listed but I was told it is NAD83, also I was also given a .sdw file in addition to the .sid file<br><br>gdalinfo below:<br><br>Driver: MrSID/Multi-resolution Seamless Image Database (MrSID)
<br>Size is 52736, 85504<br>Coordinate System is `'<br>Origin = (11827711.500000000000000,7066112.000000000000000)<br>Pixel Size = (1.000000000000000,-1.000000000000000)<br>Metadata:<br> IMAGE__WIDTH=52736<br> IMAGE__HEIGHT=85504
<br> IMAGE__COLOR_SCHEME=0<br> IMAGE__DATA_TYPE=0<br> IMAGE__XY_ORIGIN=0.000000,85503.000000<br> IMAGE__X_RESOLUTION=1.000000<br> IMAGE__Y_RESOLUTION=1.000000<br>Corner Coordinates:<br>Upper Left (11827711.500, 7066112.000
) <br>Lower Left (11827711.500, 6980608.000) <br>Upper Right (11880447.500, 7066112.000) <br>Lower Right (11880447.500, 6980608.000) <br>Center (11854079.500, 7023360.000) <br>Band 1 Block=1024x128 Type=Byte, ColorInterp=Red
<br> Overviews: 26368x42752, 13184x21376, 6592x10688, 3296x5344, 1648x2672, 824x1336, 412x668, 206x334<br>Band 2 Block=1024x128 Type=Byte, ColorInterp=Green<br> Overviews: 26368x42752, 13184x21376, 6592x10688, 3296x5344, 1648x2672, 824x1336, 412x668, 206x334
<br>Band 3 Block=1024x128 Type=Byte, ColorInterp=Blue<br> Overviews: 26368x42752, 13184x21376, 6592x10688, 3296x5344, 1648x2672, 824x1336, 412x668, 206x334<br><br clear="all">Thanks,<br>-- <br>John J. Mitchell