private void inkCanvas_MouseDown(object sender, MouseButtonEventArgs e)
{
try
{
if (points.Count < 3)
{
points.Add(new System.Drawing.PointF((float)e.GetPosition(e.Device.Target).X, (float)e.GetPosition(e.Device.Target).Y));
}
else
{
points.Clear();
inkCanvas.Strokes.Clear();
}
if (points.Count == 3)
{
Console.WriteLine("All points have been set. Calc..");
Console.WriteLine(points);
KvaziParams _params = KvaziTools.GetParams(points);
DrawLines(points, _params);
}
}
catch (Exception ee)
{
Console.WriteLine("{0} inkCanvas_MouseDown.", ee);
}
}
public static KvaziParams GetParams(PointF A, PointF B, PointF C)
{
Console.WriteLine("{0}, {1}, {2}", A, B, C);
var D = new PointF((A.X + B.X) / 2f, (A.Y + B.Y) / 2f);
var E = new PointF((C.X + B.X) / 2f, (C.Y + B.Y) / 2f);
float[,] matrix = new float[, ]
{
{ B.X - A.X, B.Y - A.Y }, { C.X - B.X, C.Y - B.Y }
};
float[] vector = new float[]
{
D.X *(B.X - A.X) + D.Y * (B.Y - A.Y),
E.Y *(C.Y - B.Y) + E.X * (C.X - B.X)
};
float[] result = solve(matrix, vector);
float x0 = result[0]; //система уравнений
float y0 = result[1];
var O = new PointF(x0, y0);
Console.WriteLine("Center coords are: " + String.Join(";", result));
Console.WriteLine("Radius A B C: {0} ; {1} ; {2} ", GetLengthLine(A, O), GetLengthLine(B, O), GetLengthLine(C, O));
KvaziParams kvaziParams = new KvaziParams(O, GetLengthLine(A, O), GetLengthLine(B, O), GetLengthLine(C, O));
kvaziParams.D = D;
kvaziParams.E = E;
return(kvaziParams);
}
private void DrawLines(List <PointF> points, KvaziParams _params)
{
try
{
System.Windows.Point A = new System.Windows.Point(points[0].X, points[0].Y);
System.Windows.Point B = new System.Windows.Point(points[1].X, points[1].Y);
System.Windows.Point C = new System.Windows.Point(points[2].X, points[2].Y);
DrawLine(A, B, true);
DrawLine(B, C, true);
System.Windows.Point centerAB = new System.Windows.Point(_params.D.X, _params.D.Y);
System.Windows.Point centerBC = new System.Windows.Point(_params.E.X, _params.E.Y);
System.Windows.Point center = new System.Windows.Point(_params.CircleCentr.X, _params.CircleCentr.Y);
DrawLine(centerAB, center, true);
DrawLine(centerBC, center, true);
DrawLine(A, center, true);
DrawLine(B, center, true);
DrawLine(C, center, true);
}
catch (Exception ee)
{
Console.WriteLine("{0} DrawLine", ee);
}
}