Teachpacks for How to Design Programs

Rectangles

rectangle.ss

The teachpack rectangle.ss provides all the operations that draw.ss provides and the following one:
  • show : (list-of (list-of symbol)) -> void
    which consumes a rectangle (a list of list of color symbols) and draws a rectangle onto an open canvas.
    • For legal color symbols, see the documentation for the     draw.ss teachpack.