public static float CalculateDistanceTo(this IRectangularF a, IRectangularF b)
{
var left = b.Right() < a.Left;
var right = a.Right() < b.Left;
var bottom = b.Bottom() < a.Top;
var top = a.Bottom() < b.Top;
if (top && left)
{
return(CalculateDistanceTo(a.Left, a.Bottom(), b.Right(), b.Top));
}
else if (left && bottom)
{
return(CalculateDistanceTo(a.Left, a.Top, b.Right(), b.Bottom()));
}
else if (bottom && right)
{
return(CalculateDistanceTo(a.Right(), a.Top, b.Left, b.Bottom()));
}
else if (right && top)
{
return(CalculateDistanceTo(a.Right(), a.Bottom(), b.Left, b.Top));
}
else if (left)
{
return(a.Left - b.Right());
}
else if (right)
{
return(b.Left - a.Right());
}
else if (bottom)
{
return(a.Top - b.Bottom());
}
else if (top)
{
return(b.Top - a.Bottom());
}
else
{
return(0);
}
}
public static float NumberOfPixelsThatOverlap(this IRectangularF rectangle, IRectangularF other)
{
var rectangleRight = rectangle.Right();
var otherRight = other.Right();
var rectangleBottom = rectangle.Bottom();
var otherBottom = other.Bottom();
var ret =
Math.Max(0, Math.Min(rectangleRight, otherRight) - Math.Max(rectangle.Left, other.Left)) *
Math.Max(0, Math.Min(rectangleBottom, otherBottom) - Math.Max(rectangle.Top, other.Top));
ret = (float)Math.Round(ret, 4);
return(ret);
}
public static ILocationF BottomRight(this IRectangularF rectangular) => LocationF.Create(rectangular.Right(), rectangular.Bottom());
public static ILocationF BottomLeft(this IRectangularF rectangular) => LocationF.Create(rectangular.Left, rectangular.Bottom());