/// <summary>
/// Checks rectangles for intersection
/// </summary>
/// <param name="rect1">First rectangle</param>
/// <param name="rect2">Second rectangle</param>
/// <param name="result">Area of intersection</param>
public static void Intersect(ref RectangleFloat rect1, ref RectangleFloat rect2, out RectangleFloat result)
{
if (rect1.Contains(rect2))
{
result = new RectangleFloat(rect2);
}
else if (rect2.Contains(rect1))
{
result = new RectangleFloat(rect1);
}
else if (!rect1.Intersects(rect2))
{
result = new RectangleFloat();
}
else
{
result = new RectangleFloat(
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));
}
}
/// <summary>
/// Checks rectangles for intersection
/// </summary>
/// <param name="rect1">First rectangle</param>
/// <param name="rect2">Second rectangle</param>
/// <returns>Area of intersection</returns>
public static RectangleFloat Intersect(RectangleFloat rect1, RectangleFloat rect2)
{
RectangleFloat result;
if (rect1.Contains(rect2))
{
result = new RectangleFloat(rect2);
}
else if (rect2.Contains(rect1))
{
result = new RectangleFloat(rect1);
}
else if (!rect1.Intersects(rect2))
{
result = new RectangleFloat();
}
else
{
result = new RectangleFloat(
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;
}