private static ProjectedCoordinateSystem ReadProjectedCoordinateSystem(WktStreamTokenizer tokenizer) { /*PROJCS[ * "OSGB 1936 / British National Grid", * GEOGCS[ * "OSGB 1936", * DATUM[...] * PRIMEM[...] * AXIS["Geodetic latitude","NORTH"] * AXIS["Geodetic longitude","EAST"] * AUTHORITY["EPSG","4277"] * ], * PROJECTION["Transverse Mercator"], * PARAMETER["latitude_of_natural_origin",49], * PARAMETER["longitude_of_natural_origin",-2], * PARAMETER["scale_factor_at_natural_origin",0.999601272], * PARAMETER["false_easting",400000], * PARAMETER["false_northing",-100000], * AXIS["Easting","EAST"], * AXIS["Northing","NORTH"], * AUTHORITY["EPSG","27700"] * ] */ tokenizer.ReadToken("["); string name = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.ReadToken("GEOGCS"); var geographicCS = ReadGeographicCoordinateSystem(tokenizer); tokenizer.ReadToken(","); IProjection projection = null; IUnit unit = null; var axes = new List <AxisInfo>(2); string authority = string.Empty; long authorityCode = -1; var ct = tokenizer.NextToken(); while (ct != TokenType.Eol && ct != TokenType.Eof) { switch (tokenizer.GetStringValue()) { case ",": case "]": break; case "PROJECTION": projection = ReadProjection(tokenizer); ct = tokenizer.GetTokenType(); continue; //break; case "UNIT": unit = ReadLinearUnit(tokenizer); break; case "AXIS": axes.Add(ReadAxis(tokenizer)); tokenizer.NextToken(); break; case "AUTHORITY": tokenizer.ReadAuthority(out authority, out authorityCode); //tokenizer.ReadToken("]"); break; } ct = tokenizer.NextToken(); } //This is default axis values if not specified. if (axes.Count == 0) { axes.Add(new AxisInfo("X", AxisOrientationEnum.East)); axes.Add(new AxisInfo("Y", AxisOrientationEnum.North)); } var projectedCS = new ProjectedCoordinateSystem(geographicCS.HorizontalDatum, geographicCS, unit as LinearUnit, projection, axes, name, authority, authorityCode, string.Empty, string.Empty, string.Empty); return(projectedCS); }