A turtle graphics implementation for R7RS Scheme

Jason K. MacDuffie 7d0c614566 import json 3 jaren geleden
examples 33f46f2e95 correct threeshapes 7 jaren geleden
server 7d0c614566 import json 3 jaren geleden
.gitignore 49c39a8d2f write a quick library for kawa turtle 7 jaren geleden
LICENSE ee9eb19ace I never set the license apparently! This is GPLv3+ 9 jaren geleden
README.md 65a0cb16a3 update readme 4 jaren geleden
canvas.gauche-tk.scm 6dba309d33 add dummy code for gauche tk to handle multiple canvases 4 jaren geleden
canvas.gauche-web.scm 33dae72746 define procedure called wait a moment 4 jaren geleden
canvas.guile-web.scm 2cd8d0af6e add guile-web client 3 jaren geleden
canvas.kawa-web.scm 33dae72746 define procedure called wait a moment 4 jaren geleden
canvas.sld 6b918a45fb make guile primary 3 jaren geleden
physics.sld 86df361c51 move physics up 4 jaren geleden
screenshot.png 8a9eb5c631 Add a screenshot 9 jaren geleden
simple.sld c72c6972fb remove any default commands 4 jaren geleden
syntax.sld 8f118c7e61 Rename *.scm to *.sld 9 jaren geleden
turtle3.body.scm ca2055731c add xcor ycor zcor to turtle3 4 jaren geleden
turtle3.sld ca2055731c add xcor ycor zcor to turtle3 4 jaren geleden
vector.sld e26be86b76 separate vector distance and difference 4 jaren geleden
web-client.scm c72c6972fb remove any default commands 4 jaren geleden

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.