Random points: Difference between revisions

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new random coordinates.
new random coordinates.
<html>
<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/prototype.js"></script>
<script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script>
<div id="box2" class="jxgbox" style="width:400px; height:400px;" onmouseover="board2.update()"></div>
<div id="box2" class="jxgbox" style="width:400px; height:400px;" onmouseover="board2.update()"></div>
<script language="JavaScript">
<script language="JavaScript">
Line 60: Line 57:
</script>
</script>
</html>
</html>
<source lang="html4strict">
<div id="box2" class="jxgbox" style="width:400px; height:400px;" onmouseover="board2.update()"></div>
</source>


<source lang="javascript">
<source lang="javascript">
board2 = JXG.JSXGraph.initBoard('box2', {originX: 10, originY:390 , unitX:380 , unitY: 380});
board2.suspendUpdate();
for (var i=0;i<50;i++) {
  var p2 = board2.createElement('point',
          [function(){return Math.random();},function(){ return Math.random()}],
          {style:5,name:' '});
}
board2.unsuspendUpdate();
</source>
</source>


[[Category:Examples]]
[[Category:Examples]]

Revision as of 14:35, 7 December 2008

Draw 50 random points

        board = JXG.JSXGraph.initBoard('box', {originX: 10, originY:390 , unitX:380 , unitY: 380});
                
        function reload() {
            JXG.JSXGraph.freeBoard(board);        
            board = JXG.JSXGraph.initBoard('box', {originX: 10, originY: 390, unitX: 380, unitY: 380});            

            board.suspendUpdate();
            for (var i=0;i<50;i++) {
                var p = board.createElement('point',
                       [Math.random(),Math.random()],{style:5,name:' '});
            }
            board.unsuspendUpdate();
        }
        reload();

Draw 50 random points

These 50 points are updated on the onmouseover event and get new random coordinates.

<div id="box2" class="jxgbox" style="width:400px; height:400px;" onmouseover="board2.update()"></div>
 board2 = JXG.JSXGraph.initBoard('box2', {originX: 10, originY:390 , unitX:380 , unitY: 380});
 board2.suspendUpdate();
 for (var i=0;i<50;i++) {
   var p2 = board2.createElement('point',
           [function(){return Math.random();},function(){ return Math.random()}],
           {style:5,name:' '});
 }
 board2.unsuspendUpdate();