XAML-Map-Control/MapProjections/Shared/Wgs84StereographicProjection.cs

using System.Globalization;

namespace MapControl.Projections
{
    public class Wgs84StereographicProjection : ProjNetMapProjection
    {
        public Wgs84StereographicProjection()
        {
            CenterChanged();
        }

        protected override void CenterChanged()
        {
            var wktFormat =
                "PROJCS[\"WGS 84 / World Mercator\"," +
                WktConstants.GeogCsWgs84 + "," +
                "PROJECTION[\"Oblique_Stereographic\"]," +
                "PARAMETER[\"latitude_of_origin\",{0:0.########}]," +
                "PARAMETER[\"central_meridian\",{1:0.########}]," +
                "UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]]," +
                "AXIS[\"Easting\",EAST]," +
                "AXIS[\"Northing\",NORTH]" +
                "AUTHORITY[\"AUTO2\",\"97002\"]]";

            CoordinateSystemWkt = string.Format(
                CultureInfo.InvariantCulture, wktFormat, Center.Latitude, Center.Longitude);
        }
    }
}