Sierpinski curve: Difference between revisions
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function clearturtle() { | function clearturtle() { | ||
t.cs(); | t.cs(); | ||
} | } | ||
Revision as of 07:35, 23 June 2009
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();
level = 3;
t.setPos(0,-300);
sierpinski(150/Math.pow(2,level),level);
