private void AddChart() { Point start = startCoordinate(canvas1); dcs = new drawCoordinateSystem(); dcs.CoordinateCanvas = coordinateCanvas; dcs.Xmin = start.X; dcs.Xmax = coordinateCanvas.Width; dcs.XTick = 20; dcs.Ymin = start.Y; dcs.Ymax = coordinateCanvas.Height; dcs.YTick = 20; dcs.GridlinePattern = drawCoordinateSystem.GridlinePatternEnum.Dot; dcs.AddCoordinateSystem(); }