public static Rectanglef Intersect(Rectanglef rect1, Rectanglef rect2)
{
Rectanglef result;
if (rect1.Contains(rect2))
result = new Rectanglef(rect2);
else if (rect2.Contains(rect1))
result = new Rectanglef(rect1);
else if (!rect1.Intersects(rect2))
result = new Rectanglef();
else
{
result = new Rectanglef(
Math.Max(rect1.X, rect2.X),
Math.Max(rect1.Y, rect2.Y),
Math.Min(rect1.Right, rect2.Right) - Math.Max(rect1.Left, rect2.Left),
Math.Min(rect1.Bottom, rect2.Bottom) - Math.Max(rect1.Top, rect2.Top));
}
return result;
}
public static void Intersect(ref Rectanglef rect1, ref Rectanglef rect2, out Rectanglef result)
{
if (rect1.Contains(rect2))
result = new Rectanglef(rect2);
else if (rect2.Contains(rect1))
result = new Rectanglef(rect1);
else if (!rect1.Intersects(rect2))
result = new Rectanglef();
else
{
result = new Rectanglef(
Math.Max(rect1.X, rect2.X),
Math.Max(rect1.Y, rect2.Y),
Math.Min(rect1.Right, rect2.Right) - Math.Max(rect1.Left, rect2.Left),
Math.Min(rect1.Bottom, rect2.Bottom) - Math.Max(rect1.Top, rect2.Top));
}
}