Some Simple Programs from
Graphics Programming in Icon

	Sierpinski's Triangle Starting with a blank window, Sierpinski's triangle gradually is filled in, pixel by pixel. The process continues indefinitely, but since the window has a finite number of pixels, the image eventually stops changing. Source code.
	A Spiral Randomization can produce striking variations in appearance. Source code.
	Fractal Stars It may seem surprising that these two figures were drawn by the same procedure with only different parameters. Source code.
	Random Paint Splatters This display was produced by a fifteen-line program, not counting comments. Source code.
	Random Rectangles Recursive division and random coloration produced this decorative image. Source code.
	Animated Sunset Running the program produces a sun in motion, here shown by gray circles. Source code. Animated image.
	Bouncing Balls Although the static image is not very interesting, this simple animation exerts an odd fascination when it runs. Source code. Animated image.
	Mixed Fonts Try modifying the code to vary the type size as well as the font and style. Source code. Data file.
	Drawing in a Window A program like this provides an easy way to develop your skill at moving the mouse precisely. Try writing your signature. Source code.