public static sIntersectPos GetLinesIntersectBetween(sXY_int A1, sXY_int A2, sXY_int B1, sXY_int B2)
{
sIntersectPos pos2;
if (((A1.X == A2.X) & (A1.Y == A2.Y)) | ((B1.X == B2.X) & (B1.Y == B2.Y)))
{
pos2.Exists = false;
return pos2;
}
double num9 = B1.Y - A1.Y;
double num8 = B1.X - A1.X;
double num = A2.X - A1.X;
double num2 = A2.Y - A1.Y;
double num4 = B2.X - B1.X;
double num5 = B2.Y - B1.Y;
double num7 = (num * num5) - (num2 * num4);
if (num7 == 0.0)
{
pos2.Exists = false;
return pos2;
}
double num3 = ((num8 * num5) - (num9 * num4)) / num7;
double num6 = ((num8 * num2) - (num9 * num)) / num7;
if ((((num3 <= 0.0) | (num3 >= 1.0)) | (num6 <= 0.0)) | (num6 >= 1.0))
{
pos2.Exists = false;
return pos2;
}
pos2.Pos.X = A1.X + ((int) Math.Round((double) (num3 * num)));
pos2.Pos.Y = A1.Y + ((int) Math.Round((double) (num3 * num2)));
pos2.Exists = true;
return pos2;
}
public static void ReorderXY(sXY_int A, sXY_int B, ref sXY_int Lesser, ref sXY_int Greater)
{
if (A.X <= B.X)
{
Lesser.X = A.X;
Greater.X = B.X;
}
else
{
Lesser.X = B.X;
Greater.X = A.X;
}
if (A.Y <= B.Y)
{
Lesser.Y = A.Y;
Greater.Y = B.Y;
}
else
{
Lesser.Y = B.Y;
Greater.Y = A.Y;
}
}
public static sXY_int PointGetClosestPosOnLine(sXY_int LinePointA, sXY_int LinePointB, sXY_int Point)
{
sXY_int _int2;
double num4 = Point.X - LinePointA.X;
double num5 = Point.Y - LinePointA.Y;
double num = LinePointB.X - LinePointA.X;
double num2 = LinePointB.Y - LinePointA.Y;
double num3 = (num * num) + (num2 * num2);
if (num3 == 0.0)
{
return LinePointA;
}
double num6 = ((num4 * num) + (num5 * num2)) / num3;
if (num6 <= 0.0)
{
return LinePointA;
}
if (num6 >= 1.0)
{
return LinePointB;
}
_int2.X = LinePointA.X + ((int) Math.Round((double) (num * num6)));
_int2.Y = LinePointA.Y + ((int) Math.Round((double) (num2 * num6)));
return _int2;
}
