A turtle graphics implementation for R7RS Scheme

Jason K. MacDuffie 7d0c614566 import json vor 3 Jahren
examples 33f46f2e95 correct threeshapes vor 7 Jahren
server 7d0c614566 import json vor 3 Jahren
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canvas.gauche-tk.scm 6dba309d33 add dummy code for gauche tk to handle multiple canvases vor 4 Jahren
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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.