Image::Rectangle

Rectangle represents an axis-aligned rectangular region.

Rectangles define regions in images using two points:

• min: Top-left corner (inclusive)
• max: Bottom-right corner (exclusive)

The half-open interval [min, max) means a pixel at (x, y) is inside the rectangle if min.x <= x < max.x and min.y <= y < max.y.

Rectangles are value types (structs) and support:

• Translation: rect + point, rect - point
• Inset/outset: rect.inset(n)
• Set operations: intersect, union
• Queries: empty?, overlaps?, in?

Empty rectangles (where min >= max) are valid and represent zero area. Many operations preserve or return empty rectangles as appropriate.

Memory layout: 16 bytes (2 Point values)

Example:

# Create 100x100 rectangle at origin
rect = Image.rect(0, 0, 100, 100)
rect.width  # 100
rect.height # 100

# Move rectangle
moved = rect + Image::Point.new(50, 50)

# Shrink by 10 pixels on all sides
inset = rect.inset(10) # rect(10, 10, 90, 90)

# Find overlap between two rectangles
r1 = Image.rect(0, 0, 100, 100)
r2 = Image.rect(50, 50, 150, 150)
overlap = r1.intersect(r2) # rect(50, 50, 100, 100)