============================================================================ Geometry Types

Point represents a 2D coordinate on the integer grid.

Points specify positions in images and rectangles. The coordinate system follows standard image conventions: X increases to the right, Y increases downward (origin at top-left).

Points are value types (structs) and support arithmetic operations for easy coordinate manipulation. They're used throughout the image API for positioning, offsets, and size calculations.

Arithmetic operations:

• Addition/subtraction: Translate coordinates
• Multiplication/division: Scale coordinates
• in?(rect): Test if point is inside rectangle

Memory layout: 8 bytes (2 Int32 values)

Example:

origin = Image::Point.new(0, 0)
offset = Image::Point.new(10, 20)
position = origin + offset # Point.new(10, 20)

rect = Image.rect(0, 0, 100, 100)
position.in?(rect) # true