A turtle graphics implementation for R7RS Scheme

Jason K. MacDuffie 750793d369 fix a bug in circle		пре 6 месеци
client	8c49cbb436 remove debug code	пре 7 месеци
examples	33f46f2e95 correct threeshapes	пре 7 година
server	3088d08556 make gauche server look closer to kawas	пре 7 месеци
.gitignore	49c39a8d2f write a quick library for kawa turtle	пре 7 година
LICENSE	ee9eb19ace I never set the license apparently! This is GPLv3+	пре 8 година
README.md	65a0cb16a3 update readme	пре 3 година
canvas.gauche-tk.scm	6dba309d33 add dummy code for gauche tk to handle multiple canvases	пре 3 година
canvas.gauche-web.scm	33dae72746 define procedure called wait a moment	пре 3 година
canvas.guile-web.scm	2cd8d0af6e add guile-web client	пре 3 година
canvas.kawa-web.scm	33dae72746 define procedure called wait a moment	пре 3 година
canvas.sld	6b918a45fb make guile primary	пре 3 година
physics.sld	86df361c51 move physics up	пре 3 година
screenshot.png	8a9eb5c631 Add a screenshot	пре 9 година
simple.sld	750793d369 fix a bug in circle	пре 6 месеци
syntax.sld	b2a3919002 Add a max-recur syntax	пре 2 година
turtle3.body.scm	40db935231 fix bug in face!	пре 6 месеци
turtle3.sld	59ebb1564d add correct implementation of face!	пре 1 година
vector.sld	4ac687fba1 add vector-angle	пре 6 месеци
web-client.scm	c72c6972fb remove any default commands	пре 3 година

Turtle R7RS

This library is for turtle graphics implemented in R7RS Scheme. Because there is no portable way to implement graphics, the code was made modular enough to have multiple front-ends. For Gauche, gauche-tk is used. For Kawa, the built-in HTTP server is used to send instructions to a browser front-end.

There is also effort to unify the use of the web front-end for multiple implementations.

YASOS is a dependency to allow extending the turtle.

Screenshot

Here is a picture of the "dragon" curve.

License

You may redistribute or modify this library under the terms of the GNU GPLv3, or any later version. See LICENSE for details.

README.md

Turtle R7RS

Screenshot

License