N-gones - Slow version: Difference between revisions

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Line 4: Line 4:
<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=8 cols=35 wrap="off" style="width:600px;">
<form><textarea id="inputtext" rows=8 cols=35 wrap="off" style="width:600px;">
speed=50;
speed=25;
t.cs().hideTurtle().setProperty({strokeWidth:4,strokeOpacity:0.6,fillOpacity:0.3});
t.cs().hideTurtle().setProperty({strokeWidth:4,strokeOpacity:0.6,fillOpacity:0.3});
ngon(7,80);
ngon(7,60);
</textarea><br />
</textarea><br />
<input type="button" value="run" onClick="runturtle()">
<input type="button" value="run" onClick="runturtle()">
Line 49: Line 49:
}
}
</jsxgraph>
</jsxgraph>
<source lang="xml">
<jsxgraph width="600" height="600">-->
var brd = JXG.JSXGraph.initBoard('jxgbox', {originX:300, originY:300, unitX:1, unitY:1});
var t = brd.createElement('turtle',[],{fillColor:'yellow'});
var speed;
function innerloop(i,j,ne,sz) {
  if (i>0) {
    if (j==ne) { t.rt(360/ne); }
    t.rt(360/ne);
    t.fd(sz);
    j--;
    if (j<=0) {
      j=ne;
      i--;
    }
    var st = 'innerloop('+(i)+','+(j)+','+ne+','+sz+')';
    setTimeout(st,speed);
  }
}
function ngon(ne,sz) {
  innerloop(ne,ne,ne,sz);
}
function runturtle() {
  //brd.suspendUpdate();
  var code = $('inputtext').value;
  if (code=='') { return; }
  eval(code);
  //brd.unsuspendUpdate();
}
function clearturtle() {
  t.cs();
}
</jsxgraph>
</source>


[[Category:Examples]]
[[Category:Examples]]
[[Category:Turtle Graphics]]
[[Category:Turtle Graphics]]

Revision as of 16:10, 25 February 2009


<jsxgraph width="600" height="600">-->
var brd = JXG.JSXGraph.initBoard('jxgbox', {originX:300, originY:300, unitX:1, unitY:1});
var t = brd.createElement('turtle',[],{fillColor:'yellow'});
var speed;

function innerloop(i,j,ne,sz) {
   if (i>0) {
     if (j==ne) { t.rt(360/ne); }
     t.rt(360/ne);
     t.fd(sz);
     j--;
     if (j<=0) {
       j=ne;
       i--;
     }
     var st = 'innerloop('+(i)+','+(j)+','+ne+','+sz+')';
     setTimeout(st,speed);
   }
}

function ngon(ne,sz) {
  innerloop(ne,ne,ne,sz);
}

function runturtle() {
  //brd.suspendUpdate();

  var code = $('inputtext').value;
  if (code=='') { return; }
  eval(code);
  //brd.unsuspendUpdate();
}
function clearturtle() {
  t.cs();
}
</jsxgraph>