internal static NetTopologySuite.Geometries.GeometryFactory GeometryFactory = NetTopologySuite.NtsGeometryServices.Instance.CreateGeometryFactory(4269); //Todo, label public void Test() { MultiLineString mls = GeometryFactory.CreateMultiLineString(); LineString ls = GeometryFactory.CreateLineString(); var numGeom = ls.NumGeometries; Polygon p = null; Geometry union = mls.Union(ls.Normalized()); }