[gdal-dev] SRS_UL_US_FOOT etc in C#?

[Mark Cheyne]

Hello - I am using SpatialReference.SetLinearUnits()
(http://www.gdal.org/ogr/classOGRSpatialReference.html#2016fee7b234666c5e94d528661e6729)
which takes a string identifying the unit, and a
double defining its conversion factor to meters.

in the C# wrap, I see the static readonly strings like

OSGeo.OSR.Osr.SRS_UL_US_FOOT and
OSGeo.OSR.Osr.SRS_UL_US_FOOT_CONV which would seem to
be the sort of thing I want as the arguments to
SetLinearUnits().

But interestingly, the values of these constants is
their NAME, not their VALUE as listed in the #DEFINEs
in ogr_srs_api.h
(http://www.gdal.org/ogr/ogr__srs__api_8h-source.html)

For example, I'd expect

OSGeo.OSR.Osr.SRS_UL_US_FOOT = "U.S. Foot" 
but it is
OSGeo.OSR.Osr.SRS_UL_US_FOOT = "SRS_UL_US_FOOT"

huh?

thanks, Mark

Mark Cheyne
(608) 332-2235 (cell)


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