IMapPolygon.AddXY
IMapPolygon

function AddXY(X, Y: Double): Integer;

Type Library
TeeChartx

Description
Use AddXY method to add a boundary co-ordinate to the polygon. The polygon will be drawn in sequential order of the co-ordinates. (ie. from point 1 (X0,Y0) to point 2 (X1,Y1) to point 3 (X2,Y2), ....)