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about.html
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<!doctype html>
<html>
<head>
<title>About Turtle Graphics</title>
<link rel="stylesheet" href="turtleweb.css" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Poppins|Roboto" rel="stylesheet">
</head>
<body>
<header>
<h1>JavaScript Turtle Graphics</h1>
<div class="navigation">
<ul>
<li><a href="overview.html" title="Overview of Turtle Graphics">Intro</a></li>
<li><a href="guide.html" title="User Guide for Turtle Graphics Integrated Development Environment">Guide</a></li>
<li><a href="turtle.html" title="Integrated Development Environment for Turtle Graphics">IDE</a></li>
<li><a href="javascript.html" title="Tutorial for Simple JavaScript">JavaScript</a></li>
<li><a href="tutorial.html" title="Tutorial for Basic Turtle Graphics">Tutorial</a></li>
<li><a href="animation.html" title="Tutorial for Animation with Turtle Graphics">Animation</a></li>
<li><a href="examples.html" title="Examples of Things Created with Turtle Graphics">Examples</a></li>
<li><a href="reference.html" title="Language Reference">Reference</a></li>
<li><a href="nerd.html" title="Nerd Links">Nerd</a></li>
<li><a class="active" href="about.html" title="About Turtle Graphics">About</a></li>
</div>
</header>
<article>
<h2>About Turtle Graphics</h2>
<h3>History</h3>
<p>
Turtle graphics were originally developed as part of the Logo language
developed
in 1967 at Bolt, Beranek and Newman (BBN), a Cambridge,
Massachusetts research firm, by Wally Feurzeig and Seymour Papert.
There have been several attempts to commercialize
turtle graphics for small children including the Terrapin Turtle and Apple
Logo Graphics using an Apple ][ computer. Most implementations
of Turtle Graphics did not include a full implementation of the Logo language.
</p>
<h3>History of This Page</h3>
<p>
This project was forked from
<a href="https://github.com/bjpop/js-turtle">https://github.com/bjpop/js-turtle</a>.
This project had the basic turtle graphic functions, the
<strong>animate</strong> function, the immediate execution
of the <strong>command</strong> line, and the editable
<strong>definitions</strong> area. This was the substantial portion
of this project, and overall had brilliant ideas.
</p>
<p>
Kirk Carlson added some turtle functions and added enhancements to make
the project more of a code developent platform. It is hoped that this
project can help young programmers move from code.org and Scratch projects
to JavaScript projects.
</p>
<h3>Source Code Repository</h3>
<p>
The source code is at:
<a href="https://github.com/kirkcarlson/js-turtle">https://github.com/kirkcarlson/js-turtle</a>.
</p>
<h3>Contact</h3>
<p>
Comments or questions may be directed to:
<a href="mailto:[email protected]?subject=Comments about Turtle Graphics">[email protected]</a>.
</p>
<p>Some icons made by <a href="https://www.flaticon.com/authors/epiccoders"
title="EpicCoders">EpicCoders</a> from <a href="https://www.flaticon.com/"
title="Flaticon">www.flaticon.com</a> is licensed by
<a href="http://creativecommons.org/licenses/by/3.0/"title="Creative Commons BY 3.0" target="_blank">CC 3.0 BY</a>
</p>
<p>
Code for the file and graphic file save is from Eli Gray, see the source
at <a href="https://github.com/eligrey/FileSaver.js">
https://github.com/eligrey/FileSaver.js
</a>
</p>
<p>
Code for the HTML entity encoding/decoding is from Mathias Bynens,
see the source at
<a href="https://github.com/mathiasbynens/he">
https://github.com/mathiasbynens/he
</a>
</p>
</article>
</body>
</html>