A turtle graphics implementation for R7RS Scheme

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

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