point%

A point% is used for certain drawing commands. It excapsulates two real numbers, x and y.

• (make-object point%) -> point% object

  Creates a point with 0 x and y values.

  
  

• (make-object point% x y) -> point% object
      x : real number
      y : real number

  Creates a point.

  
  

• get-x
• get-y
• set-x
• set-y