Difference between revisions of "Koch curve"
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<script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/prototype.js"></script> | <script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/prototype.js"></script> | ||
<script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script> | <script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script> | ||
| − | |||
<form><textarea id="inputtext" rows=3 cols=35 wrap="off" style="width:600px;"> | <form><textarea id="inputtext" rows=3 cols=35 wrap="off" style="width:600px;"> | ||
function koch(x,level) { | function koch(x,level) { | ||
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<script language="JavaScript"> | <script language="JavaScript"> | ||
var brd = JXG.JSXGraph.initBoard('box', {originX: 300, originY: 300, unitX: 1, unitY: 1}); | var brd = JXG.JSXGraph.initBoard('box', {originX: 300, originY: 300, unitX: 1, unitY: 1}); | ||
| − | var t = | + | var t = brd.createElement('turtle'); |
function run() { | function run() { | ||
brd.suspendUpdate(); | brd.suspendUpdate(); | ||
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===References=== | ===References=== | ||
| − | + | * [http://www.mathcurve.com/fractals/koch/koch.shtml http://www.mathcurve.com/fractals/koch/koch.shtml] | |
| − | * [http:// | ||
===Source code=== | ===Source code=== | ||
Revision as of 16:09, 21 January 2009
References
Source code
function koch(x,level) {
if (level<1) {
t.fd(x);
} else {
koch(x/3,level-1);
t.lt(60);
koch(x/3,level-1);
t.rt(120);
koch(x/3,level-1);
t.lt(60);
koch(x/3,level-1);
}
}
t.cs();
t.hideTurtle();
t.setPos(-250,0);
t.rt(90);
koch(400,7);
