[Gdal-dev] ECW coordinate system definitions (and other proprietary definition methods)

Brent Fraser bfraser at geoanalytic.com
Thu Aug 26 12:53:10 EDT 2004


Frank,

   While doing some work trying to create the coordinate system definitions for MapInfo's TAB file (yuck!), I noticed that some interpretation of ERMapper's ECW coordinate systems has been done about a year ago.  Due to the current path searching setup for GDAL, it will only work if the translation file (ecw_cs.dat) is in "/usr/local/share/gdal" or the current working directory.

   I made a small change to my local copy of cpl_findfile.cpp to include the place where the PROJ data files are kept (defined by the PROJ_LIB environment variable); at line 74:

        CPLPushFinderLocation( "." );
        CPLPushFinderLocation( CPLGetConfigOption("PROJ_LIB","/proj/nad") );

  But perhaps it should also include the directory of the executable (or a "data" subdir)?  Your thoughts?

Thanks!
Brent Fraser
GeoAnalytic Inc.
Tel:(403) 213-2700
bfraser at geoanalytic.com
www.geoanalytic.com
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