//"PROJCS["WGS_1984_UTM_Zone_50S",
//GEOGCS["GCS_WGS_1984",
//DATUM["D_WGS_1984",
//SPHEROID["WGS_1984",6378137,298.257223563]],
//PRIMEM["Greenwich",0],
//UNIT["Degree",0.017453292519943295]],
//PROJECTION["Transverse_Mercator"],
//PARAMETER["latitude_of_origin",0],
//PARAMETER["central_meridian",117],
//PARAMETER["scale_factor",0.9996],
//PARAMETER["false_easting",500000],
//PARAMETER["false_northing",10000000],UNIT["Meter",1]]";
private GeoAPI.CoordinateSystems.IProjectedCoordinateSystem CreateUtmProjection(int utmZone)
{
GeoAPI.CoordinateSystems.ICoordinateSystemFactory cFac = new SharpMap.CoordinateSystems.CoordinateSystemFactory();
//Create geographic coordinate system based on the WGS84 datum
GeoAPI.CoordinateSystems.IEllipsoid ellipsoid = cFac.CreateFlattenedSphere("WGS_1984",
6378137, 298.257223563, SharpMap.CoordinateSystems.LinearUnit.Metre);
GeoAPI.CoordinateSystems.IHorizontalDatum datum = cFac.CreateHorizontalDatum("D_WGS_1984",
GeoAPI.CoordinateSystems.DatumType.HD_Geocentric, ellipsoid, null);
GeoAPI.CoordinateSystems.IGeographicCoordinateSystem gcsWGS84 = cFac.CreateGeographicCoordinateSystem("GCS_WGS_1984",
SharpMap.CoordinateSystems.AngularUnit.Degrees, datum, SharpMap.CoordinateSystems.PrimeMeridian.Greenwich,
new GeoAPI.CoordinateSystems.AxisInfo("Lon", GeoAPI.CoordinateSystems.AxisOrientationEnum.East),
new GeoAPI.CoordinateSystems.AxisInfo("Lat", GeoAPI.CoordinateSystems.AxisOrientationEnum.North));
//Create UTM projection
List <GeoAPI.CoordinateSystems.ProjectionParameter> parameters =
new List <GeoAPI.CoordinateSystems.ProjectionParameter>();
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("latitude_of_origin", 0));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("central_meridian", -183 + 6 * utmZone));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("scale_factor", 0.9996));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_easting", 500000));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_northing", 10000000));
GeoAPI.CoordinateSystems.IProjection projection = cFac.CreateProjection("Transverse Mercator", "Transverse Mercator", parameters);
return(cFac.CreateProjectedCoordinateSystem("WGS84 UTM Zone " + utmZone.ToString() + "S",
gcsWGS84, projection, SharpMap.CoordinateSystems.LinearUnit.Metre,
new GeoAPI.CoordinateSystems.AxisInfo("East", GeoAPI.CoordinateSystems.AxisOrientationEnum.East),
new GeoAPI.CoordinateSystems.AxisInfo("North", GeoAPI.CoordinateSystems.AxisOrientationEnum.North)));
}
private void Initialize()
{
GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel precisionModel =
new GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel(GeoAPI.Geometries.PrecisionModels.Floating);
SharpMap.CoordinateSystems.CoordinateSystem wgs84 = SharpMap.CoordinateSystems.GeographicCoordinateSystem.WGS84;
GeoAPI.CoordinateSystems.ICoordinateSystemFactory cFac = new SharpMap.CoordinateSystems.CoordinateSystemFactory();
//Create geographic coordinate system based on the WGS84 datum
GeoAPI.CoordinateSystems.IEllipsoid ellipsoid = cFac.CreateFlattenedSphere("WGS 84",
6378137, 298.257223563, SharpMap.CoordinateSystems.LinearUnit.Metre);
GeoAPI.CoordinateSystems.IHorizontalDatum datum = cFac.CreateHorizontalDatum("WGS_1984",
GeoAPI.CoordinateSystems.DatumType.HD_Geocentric, ellipsoid, null);
GeoAPI.CoordinateSystems.IGeographicCoordinateSystem gcsWGS84 = cFac.CreateGeographicCoordinateSystem("WGS 84",
SharpMap.CoordinateSystems.AngularUnit.Degrees, datum, SharpMap.CoordinateSystems.PrimeMeridian.Greenwich,
new GeoAPI.CoordinateSystems.AxisInfo("Lon", GeoAPI.CoordinateSystems.AxisOrientationEnum.East),
new GeoAPI.CoordinateSystems.AxisInfo("Lat", GeoAPI.CoordinateSystems.AxisOrientationEnum.North));
List <GeoAPI.CoordinateSystems.ProjectionParameter> parameters =
new List <GeoAPI.CoordinateSystems.ProjectionParameter>();
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("latitude_of_origin", 0));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("central_meridian", 117));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("scale_factor", 0.9996));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_easting", 500000));
parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_northing", 10000000));
GeoAPI.CoordinateSystems.IProjection projection = cFac.CreateProjection("Transverse Mercator", "Transverse Mercator", parameters);
GeoAPI.CoordinateSystems.IProjectedCoordinateSystem utmWGS84 = cFac.CreateProjectedCoordinateSystem("WGS84 UTM Zone 50S",
gcsWGS84, projection, SharpMap.CoordinateSystems.LinearUnit.Metre,
new GeoAPI.CoordinateSystems.AxisInfo("East", GeoAPI.CoordinateSystems.AxisOrientationEnum.East),
new GeoAPI.CoordinateSystems.AxisInfo("North", GeoAPI.CoordinateSystems.AxisOrientationEnum.North));
int SRID_utm50 = Convert.ToInt32(utmWGS84.AuthorityCode); //UTM50 SRID
SharpMap.CoordinateSystems.Transformations.CoordinateTransformationFactory ctFact =
new SharpMap.CoordinateSystems.Transformations.CoordinateTransformationFactory();
_Transform = ctFact.CreateFromCoordinateSystems(utmWGS84, wgs84);
_UTM50Factory = new GisSharpBlog.NetTopologySuite.Geometries.GeometryFactory(precisionModel, SRID_utm50);
}
private SharpMap.CoordinateSystems.IProjectedCoordinateSystem CreateUTMProjection(int utmZone)
{
SharpMap.CoordinateSystems.CoordinateSystemFactory cFac = new SharpMap.CoordinateSystems.CoordinateSystemFactory();
SharpMap.CoordinateSystems.IEllipsoid ellipsoid = cFac.CreateFlattenedSphere("WGS 84", 6378137, 298.257223563, SharpMap.CoordinateSystems.LinearUnit.Metre);
SharpMap.CoordinateSystems.IHorizontalDatum datum = cFac.CreateHorizontalDatum("WGS_1984", SharpMap.CoordinateSystems.DatumType.HD_Geocentric, ellipsoid, null);
SharpMap.CoordinateSystems.IGeographicCoordinateSystem gcs = cFac.CreateGeographicCoordinateSystem("WGS 84", SharpMap.CoordinateSystems.AngularUnit.Degrees, datum, SharpMap.CoordinateSystems.PrimeMeridian.Greenwich,
new SharpMap.CoordinateSystems.AxisInfo("Lon", SharpMap.CoordinateSystems.AxisOrientationEnum.East),
new SharpMap.CoordinateSystems.AxisInfo("Lat", SharpMap.CoordinateSystems.AxisOrientationEnum.North));
//Create UTM projection
List<SharpMap.CoordinateSystems.ProjectionParameter> parameters = new List<SharpMap.CoordinateSystems.ProjectionParameter>(5);
parameters.Add(new SharpMap.CoordinateSystems.ProjectionParameter("latitude_of_origin", 0));
parameters.Add(new SharpMap.CoordinateSystems.ProjectionParameter("central_meridian", -183 + 6 * utmZone));
parameters.Add(new SharpMap.CoordinateSystems.ProjectionParameter("scale_factor", 0.9996));
parameters.Add(new SharpMap.CoordinateSystems.ProjectionParameter("false_easting", 500000));
parameters.Add(new SharpMap.CoordinateSystems.ProjectionParameter("false_northing", 0.0));
SharpMap.CoordinateSystems.IProjection projection = cFac.CreateProjection("Transverse Mercator", "Transverse_Mercator", parameters);
return cFac.CreateProjectedCoordinateSystem( "WGS 84 / UTM zone " + utmZone.ToString() + "N", gcs,
projection, SharpMap.CoordinateSystems.LinearUnit.Metre,
new SharpMap.CoordinateSystems.AxisInfo("East", SharpMap.CoordinateSystems.AxisOrientationEnum.East),
new SharpMap.CoordinateSystems.AxisInfo("North", SharpMap.CoordinateSystems.AxisOrientationEnum.North));
}
