How to declare State Plane coordinates?
ben at v...
Sat Jul 28 20:22:47 EDT 2001
I have a Shapefile which is said to use the following projection:
"Washington State Plane Coordinates, North".
I can use Shapelib (or OGR, i suppose) to load the file, but how do a
construct a OGRSpatialReference with the projection? The online
documentation for OGRSpatialReference::SetStatePlane() has only are the
words "State Plane." So, i dug into the CVS source, and found more: "State
plane zone number, in the USGS numbering scheme."
I dug around more in the source but couldn't locate a set of values for this
'USGS numbering scheme'; there is some related-looking tables in the GeoTiff
code, but AFAICT nothing which describes the values to pass to
Ideally, i would like to display a list of strings containing the possible
values to the user, so they can inform my program of which State Plane they
have. Does such a table appear anywhere usable in GDAL/OGR?
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