Sierpinski curve: Difference between revisions
From JSXGraph Wiki
A WASSERMANN (talk | contribs) (New page: <html> <link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" /> <script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/pro...) |
A WASSERMANN (talk | contribs) No edit summary |
||
| Line 37: | Line 37: | ||
t.cs(); | t.cs(); | ||
t.ht(); | t.ht(); | ||
level = 3; | |||
t.setPos(0,-300); | t.setPos(0,-300); | ||
sierpinski(150/Math.pow(2, | sierpinski(150/Math.pow(2,level),level); | ||
</textarea><br /> | </textarea><br /> | ||
<input type="button" value="run" onClick="run()"> | <input type="button" value="run" onClick="run()"> | ||
Revision as of 20:08, 22 December 2008
References
The source code
function halfSierpinski(s,l) {
if (l==0) {
t.fd(s);
} else {
halfSierpinski(s,l-1);
t.lt(45);
t.fd(s*Math.sqrt(2));
t.lt(45);
halfSierpinski(s,l-1);
t.rt(90);
t.fd(s);
t.rt(90);
halfSierpinski(s,l-1);
t.lt(45);
t.fd(s*Math.sqrt(2));
t.lt(45);
halfSierpinski(s,l-1);
}
}
function sierpinski(s,l) {
halfSierpinski(s,l);
t.rt(90);
t.fd(s);
t.rt(90);
halfSierpinski(s,l);
t.rt(90);
t.fd(s);
t.rt(90);
}
t.cs();
t.ht();
r = 4;
t.setPos(0,-300);
sierpinski(150/Math.pow(2,r),r);
