C # operation Styline Two-time development to achieve line drawing function

C # operation Styline model left click on the model to get the coordinates, complete the line drawing operation.

1: Mouse Click Model Event

list<iposition66> pos = new list<iposition66> ();        private bool sgworld_onlbuttonclicked (int Flags, int X, int Y)        {                       var sgworld = new SGWorld66 ();            var postioninfo = Sgworld. Window.pixeltoworld (X, Y);            IPosition66 ss = Postioninfo. Position;            Ss. X = Postioninfo. position.x;            Ss. Y = Postioninfo. POSITION.Y;            Pos. ADD (ss);             return false;        }

2: Operation Draw Line

  string tmsg = String.Empty;            Ilinearring cring = null;            Igeometry cpolygongeometry = null;            ITerrainPolyline66 cpolyo = null; Create Instance//messagebox.show (String.Format ("X:{0}\r\ny:{1}", Posl[i]. PosX, Posl[i].            PosX));            var sgworld = new SGWorld66 ();            list<iposition66> POSL = pos;            int sin = 0; Sin = Posl.            count*3;            double[] Cverticesarray = new Double[sin]; Gets the coordinate value for (int i = 0; i < POSL. Count; i++) {cverticesarray[i*3] = Posl[i].                X CVERTICESARRAY[I*3+1] = Posl[i].                Y Cverticesarray[i * 3 + 2] = Posl[i].            Altitude; } {cring = Sgworld.                Creator.GeometryCreator.CreateLinearRingGeometry (Cverticesarray); Cpolygongeometry = Sgworld.            Creator.GeometryCreator.CreateLinearRingGeometry (cring); } {UINT Nlinecolor = 0xff00ff00;                Color style Altitudetypecode Altitudetype = Altitudetypecode.atc_on_terrain; D2. Create Polygon Cpolyo = Sgworld. Creator.createpolyline (Cpolygongeometry, Nlinecolor, Altitudetype, String.                Empty, "Polygon"); Note the coordinate sgworld. Window.pixeltoworld (Sgworld. Window.Rect.Left, Sgworld.            Window.Rect.Top, Worldpointtype.wpt_terrain); }