I'm fairly new to the ProjNet library and GIS in general so please bear with me.
I have a set of coordinates from an EPSG:32038 system and I'm trying to convert to decimal Latitude and Longitude (WGS 1984). The result from ProjNet is about 700 feet south of the supposed location.
Input coordinates:
x = 1979302.949; y = 437337.980;
WKT used to define EPSG: 32038
PROJCS["NAD27 / Texas North Central",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.9786982138982]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["standard_parallel_1",32.13333333333333],PARAMETER["standard_parallel_2",33.96666666666667],PARAMETER["latitude_of_origin",31.66666666666667],PARAMETER["central_meridian",-97.5],PARAMETER["false_easting",2000000],PARAMETER["false_northing",0],UNIT["Foot_US",0.30480060960121924]]
The result from ProjNet are:
latitude 32.866837297179472
longitude -97.56741127050887
I cross checked with NOAA's SPC to GEODETIC online tool and the results converted from DMS to decimal Lat Long are:
latitude 32.86879
longitude -97.567574
The result from NOAA is a lot closer than what I'm getting from ProjNet. The WKT is copied from Spatial Reference website and cross checked with ESPG website. At this point, I'm not sure if the WKT used is incorrect or an issue in ProjNet.