Difference between revisions of "Turtle Graphics"

Revision as of 16:55, 19 December 2008

@@ Line 4: / Line 4: @@
 <script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script>
 <form><textarea id="input" rows=7 cols=35 wrap="off" style="width:600px">
+function side(size, level) {
+    if (level==0) {
+        t.fd(size);
+        return;
+    }
+    side(size/3, level-1);
+    t.lt(60);
+    side(size/3, level-1);
+    t.rt(120);
+    side(size/3, level-1);
+    t.lt(60);
+    side(size/3, level-1);
+}
+function snowflake(size, level) {
+    (3).times(function() {
+        side(size, level);
+        t.rt(120);
+    });
+}
+brd.suspendUpdate();
+t.clean();
+t.lt(30);
+t.setPos(0,-100);
+snowflake(250, 4);
+brd.unsuspendUpdate();
 </textarea><br />
 <input type="button" value="run" onClick="run()">