[Gdal-dev] OGR Error on State Plane transform

[Garvan Keeley]

Thanks Frank,
once the files were placed in the right place, the error went away and the
transform was successful. 

I didn't realize there is an testing suite, where is that located?

Also, in the SetStatePlane function (SetStatePlane(int nZone, int bNAD83 =
TRUE)) is the second argument indicating whether NAD27 or NAD83 are being
used as input coordinates?
If so, is SetWellKnownGeogCS() necessary in this instance?


> Garvan,
> 
> I have reproduced your problem.  The system isn't finding the 
> stateplane.csv file.  Try pointing GEOTIFF_CSV to your 
> gdal/data directory, or copying stateplane.csv (and likely 
> pcs.csv and gcs.csv) to your GEOTIFF_CSV directory.
> 
> I have also improved the error message (the text of the 
> message was out of date), and a bug in the fallback code that 
> uses SetLocalCS() if the state plane zone can't be fully resolved.
> 
> Finally, I have just today made substantial other changes to 
> SetStatePlane(). The C++ method now takes additional 
> (optional) arguments to override the linear units from what 
> the legal (aka EPSG) definition of the zone is.  It is 
> common, for instance, to use NAD83 State Plane zone 
> definitions, but to force the units to feet.  Converting the 
> meter definition to feet is a bit tricky, but this is now all 
> encapsulated in the SetStatePlane() method.
> 
> While this changes the C++ ABI, old code should still compile 
> fine since the extra arguments are defaulted.  I also added 
> OSRSetStatePlaneWithUnits() to the C API for the new args, 
> and left the old call unchanged so there is no C ABI change 
> (just an extension).
> 
> The autotest suite now includes some state plane testing.
> 
> The Erdas Imagine driver now properly supports state plane 
> files where the units are not the same as the expected zone units.
> 
> A big day for state plane!
> 
> Best regards,
> 
> -- 
> ---------------------------------------+----------------------
> ----------
> ---------------------------------------+------
> I set the clouds in motion - turn up   | Frank Warmerdam, 
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial 
> Programmer for Rent
> 
> 
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