Sergey, As far as I know, there are no functions like that in GDAL. Perhaps those functions could be added to the API. I'd recommend posting the question to gis.stackexchange.com and try to get an answer there. I have some rather complicated code I use to determine if I'm in state plane coordinates using a combination of GDAL and the WKT parameters, but I wouldn't really post that code to this mailing list. There may be an easier way to determine if you're in state plane coordinates. Maybe post the link to your question on gis.stackexchange and I can try to answer it.
Chris -----Original Message----- From: gdal-dev [mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Sergey Suloev Sent: Friday, February 07, 2020 9:11 AM To: Alan Snow Cc: gdal-dev@lists.osgeo.org Subject: Re: [gdal-dev] Question about GDAL API: way to find out if CS isSPCS hi, Alan, On 2/7/20 5:36 PM, Alan Snow wrote: > If you use python, the pyproj CRS class can help. > >>> from pyproj import CRS > >>> crs = CRS("EPSG:26945") > >>> crs > <Projected CRS: EPSG:26945> > Name: NAD83 / California zone 5 > Axis Info [cartesian]: > - X[east]: Easting (metre) > - Y[north]: Northing (metre) > Area of Use: > - name: USA - California - SPCS83 - 5 > - bounds: (-121.42, 32.76, -114.12, 35.81) > Coordinate Operation: > - name: SPCS83 California zone 5 (meters) > - method: Lambert Conic Conformal (2SP) > Datum: North American Datum 1983 > - Ellipsoid: GRS 1980 > - Prime Meridian: Greenwich > > >>> crs.name <http://crs.name> > 'NAD83 / California zone 5' > >>> crs.coordinate_operation.name <http://crs.coordinate_operation.name> > 'SPCS83 California zone 5 (meters)' > > On Fri, Feb 7, 2020 at 8:08 AM Sergey Suloev <sergey.sul...@gmail.com > <mailto:sergey.sul...@gmail.com>> wrote: > > Hello, > > in my project I am using GDAL to manage coordinate systems. > I am looking for a function/class that can tell me if a specific > coordinate system is a State Plane Coordinate System and give a zone > number. > > Thank you very much > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org <mailto:gdal-dev@lists.osgeo.org> > https://lists.osgeo.org/mailman/listinfo/gdal-dev > > > > -- > Alan Snow thanks for the answer. I am using C/C++ and I was expecting to find a function/method like "GetSPCSZone", "IzSPCS" or similar. Do you mean that I have to parse a coordinate system name in order to find required information ? Sergey _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
