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()
);
}
}