A turtle graphics implementation for R7RS Scheme

Jason K. MacDuffie be11882a20 add face to simple 1 year ago
examples 33f46f2e95 correct threeshapes 6 years ago
server 0ee0f422f2 remove newline 3 years ago
.gitignore 49c39a8d2f write a quick library for kawa turtle 6 years ago
LICENSE ee9eb19ace I never set the license apparently! This is GPLv3+ 8 years ago
README.md 65a0cb16a3 update readme 3 years ago
canvas.gauche-tk.scm 6dba309d33 add dummy code for gauche tk to handle multiple canvases 3 years ago
canvas.gauche-web.scm 33dae72746 define procedure called wait a moment 3 years ago
canvas.guile-web.scm 2cd8d0af6e add guile-web client 3 years ago
canvas.kawa-web.scm 33dae72746 define procedure called wait a moment 3 years ago
canvas.sld 6b918a45fb make guile primary 3 years ago
physics.sld 86df361c51 move physics up 3 years ago
screenshot.png 8a9eb5c631 Add a screenshot 8 years ago
simple.sld be11882a20 add face to simple 1 year ago
syntax.sld b2a3919002 Add a max-recur syntax 1 year ago
turtle3.body.scm 59ebb1564d add correct implementation of face! 1 year ago
turtle3.sld 59ebb1564d add correct implementation of face! 1 year ago
vector.sld b6839776ff add implementation of cross product of 3d vectors 1 year ago
web-client.scm c72c6972fb remove any default commands 3 years ago

README.md

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.

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.