A turtle graphics implementation for R7RS Scheme

Jason K. MacDuffie cade3af018 remove face! 10 months ago
examples 33f46f2e95 correct threeshapes 4 years ago
server 0ee0f422f2 remove newline 10 months ago
.gitignore 49c39a8d2f write a quick library for kawa turtle 4 years ago
LICENSE ee9eb19ace I never set the license apparently! This is GPLv3+ 5 years ago
README.md 65a0cb16a3 update readme 11 months ago
canvas.gauche-tk.scm 6dba309d33 add dummy code for gauche tk to handle multiple canvases 10 months ago
canvas.gauche-web.scm 33dae72746 define procedure called wait a moment 11 months ago
canvas.guile-web.scm 2cd8d0af6e add guile-web client 10 months ago
canvas.kawa-web.scm 33dae72746 define procedure called wait a moment 11 months ago
canvas.sld 6b918a45fb make guile primary 10 months ago
physics.sld 86df361c51 move physics up 10 months ago
screenshot.png 8a9eb5c631 Add a screenshot 6 years ago
simple.sld c72c6972fb remove any default commands 10 months ago
syntax.sld 8f118c7e61 Rename *.scm to *.sld 5 years ago
turtle3.body.scm cade3af018 remove face! 10 months ago
turtle3.sld cade3af018 remove face! 10 months ago
vector.sld 0da75d3b1e add conversions between degrees and radians 10 months ago
web-client.scm c72c6972fb remove any default commands 10 months 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.