/// <summary> /// Creates a new geometry from well-known text (WKT). /// </summary> /// <param name="wkt"></param> /// <returns></returns> public static Geometry ToGeometry(string wkt) { if (wkt == null) { return(null); } var s = wkt.ToUpperInvariant().Trim(); if (s.StartsWith("POINT")) { return(Point.FromWkt(wkt)); } if (s.StartsWith("MULTIPOINT")) { return(Multipoint.FromWkt(wkt)); } if (s.StartsWith("MULTILINESTRING")) { return(Polyline.FromWkt(wkt)); } if (s.StartsWith("MULTIPOLYGON")) { return(Polygon.FromWkt(wkt)); } throw new ArgumentException("This geometry type is not supported.", nameof(wkt)); }