Dimitris Phoukas writes:
> Rob,
>
> Related to your research is the following:
>
> Turtle Graphics in Miranda
> by Eniko Bogdan <[EMAIL PROTECTED]>
> The Turtle Graphics program is written in Miranda version 2.009
(Nov.
> 1989), a pure functional language. Turtle Graphics is an
interactive
> program and it prompts for turtle commands. Turtle commands help
to
> produce drawings which are displayed on a visual interface. Turtle
> Graphics consists on moving the turtle on the screen, producing
> geometric designs. A geometric design is a sequence of connected
> lines, whose symmetry and regularity provokes the user investigate
> deeper in geometry and number theory.
In the most recent Yale Haskell release (with X interface), there is
a Haskell implementation of Logo. Logo is a programming language
which supports turtle graphics.
The Logo interpreter is in progs/demo/X11/logo. There are a few other
X Window and graphics related programs under progs/demo/X11:
animation/ Haskell implementation of Kevi Arya's FPCA'88 paper
"A Functional Animation Starter Kit".
The following animations are provided there:
seaside.hs - a seaside scene
planets.hs - planets in orbit
palm.hs - another seaside scene
birds.hs - flying birds
draw/ The example draw program used in the X window
documentation.
gobang/ A game played on a Go board. It has fully interactive
graphic interface and allows a human to play against
the computer.
Two players in turn place pieces on a 19 by 19 board.
The winner is the first who makes five consecutive
pieces along either vertical, horizontal or diagonal
directions.
graphics/ Haskell implementation of Henderson's recursive
geometry.
Regards,
Sheng Liang <[EMAIL PROTECTED]>
