private List <Point> GetTrianglePoints() { Int32 sideA = (Int32)SideALength.Value; Int32 sideB = (Int32)SideBLength.Value; Int32 sideC = (Int32)SideCLength.Value; Double interval = (Double)Interval.Value; DrawingDirection drawingDirection = GetDrawingDirection(); if (!Triangle.IsExist(sideA, sideB, sideC)) { MessageBox.Show( text: @"A triangle with such sides does not exist.", caption: @"Error" ); return(null); } var triangleCoordinateCalculator = new TriangleCoordinateCalculator(); var triangle = triangleCoordinateCalculator.Calculate(sideA, sideB, sideC, PictureBox.Width, PictureBox.Height); var pointsBuilder = new PointsBuilder(); var points = pointsBuilder.Build(triangle.ToPolygon(), interval, drawingDirection); return(points); }
private void DrawButton_Click(Object sender, EventArgs e) { Int32 sideA = (Int32)SideALength.Value; Int32 sideB = (Int32)SideBLength.Value; Int32 sideC = (Int32)SideCLength.Value; Double interval = (Double)Interval.Value; DrawingDirection drawingDirection = GetDrawingDirection(); if (!Triangle.IsExist(sideA, sideB, sideC)) { MessageBox.Show( text: @"A triangle with such sides does not exist.", caption: @"Error" ); return; } var triangleCoordinateCalculator = new TriangleCoordinateCalculator(); var triangle = triangleCoordinateCalculator.Calculate(sideA, sideB, sideC, PictureBox.Width, PictureBox.Height); var pointsBuilder = new PointsBuilder(); var points = pointsBuilder.Build(triangle.ToPolygon(), interval, drawingDirection); using (var graphic = PictureBox.CreateGraphics()) { graphic.Clear(Color.White); Pen pen = new Pen(Color.Blue, 1.0f); graphic.DrawLines( pen, points.Select(p => new PointF((float)p.X, (float)p.Y)).ToArray() ); } }