/// <summary> /// Create a line graphic. /// </summary> /// <param name="fieldOfJoy"></param> /// <param name="a"></param> /// <param name="b"></param> /// <param name="lineSymbol"></param> private static void CreateLine(GraphicsLayer fieldOfJoy, MapPoint a, MapPoint b, CIMLineSymbol lineSymbol) { fieldOfJoy.AddElement(new CIMLineGraphic() { Symbol = lineSymbol.MakeSymbolReference(), Line = PolylineBuilder.CreatePolyline(new List <MapPoint>() { a, b }, fieldOfJoy.GetSpatialReference()) }); }