geotiff state plane coordinate systems

[warmerdam]

Frank,

I’m noticing issues with reading state plane geotiff tags written through gdal in osgeo4w. Basically a gdalinfo report on the attached file from the osgeo4w shell does not completely parse the projection information and I get this projection information:

Coordinate System is:

PROJCS["unnamed",
    GEOGCS["NAD27",
        DATUM["North_American_Datum_1927",
            SPHEROID["Clarke 1866",6378206.4,294.9786982139006,
                AUTHORITY["EPSG","7008"]],
            AUTHORITY["EPSG","6267"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433],
        AUTHORITY["EPSG","4267"]],
    UNIT["US survey foot",0.3048006096012192,
        AUTHORITY["EPSG","9003"]],
    AUTHORITY["EPSG","26755"]]

Also in trying to project through gdalwarp file I get an error:

ERROR 1: No PROJ.4 translation for destination SRS, coordinate
transformation initialization has failed.

However, everything works fine in FWTools 2.1.0. In trying to figure out what might be the issue, I discovered that setting the GEOTIFF_CSV environment variable to point to the location of the epsg csv files seems to fix the issue:

set GEOTIFF_CSV=Z:\OSGEO4W_POPS\apps\gdal-dev\share\gdal

So after setting GEOTIFF_CSV, I get this projection string from gdalinfo and gdalwarp works fine:

...

Should this be part of the standard environmental variables that should be set in OSGEO4W? Can you shed some light on this please? Also I haven’t noticed this issue with other projections.

Thanks.

Vikalpa

[warmerdam]

Vikalpa,

I have confirmed your analysis, and I have uploaded a new libgeotiff package (1.2.5-2) which includes the \etc\ini\libgeotiff.bat file to set this environment variable.

Thanks!