Difference between revisions of "Random points"

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Line 45: Line 45:
 
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 15:35, 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();