Difference between revisions of "Random points"

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Line 1: Line 1:
===Draw 100 random points===
+
===Draw 50 random points===
 
<html>
 
<html>
 
<link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" />
 
<link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" />
Line 14: Line 14:
  
 
             board.suspendUpdate();
 
             board.suspendUpdate();
             for (var i=0;i<100;i++) {
+
             for (var i=0;i<50;i++) {
 
                 var p = board.createElement('point',
 
                 var p = board.createElement('point',
 
                       [Math.random(),Math.random()],{style:5,name:' '});
 
                       [Math.random(),Math.random()],{style:5,name:' '});
Line 32: Line 32:
  
 
             board.suspendUpdate();
 
             board.suspendUpdate();
             for (var i=0;i<100;i++) {
+
             for (var i=0;i<50;i++) {
 
                 var p = board.createElement('point',
 
                 var p = board.createElement('point',
 
                       [Math.random(),Math.random()],{style:5,name:' '});
 
                       [Math.random(),Math.random()],{style:5,name:' '});
Line 52: Line 52:
 
  board2 = JXG.JSXGraph.initBoard('box2', {originX: 10, originY:390 , unitX:380 , unitY: 380});
 
  board2 = JXG.JSXGraph.initBoard('box2', {originX: 10, originY:390 , unitX:380 , unitY: 380});
 
  board2.suspendUpdate();
 
  board2.suspendUpdate();
  for (var i=0;i<100;i++) {
+
  for (var i=0;i<50;i++) {
 
   var p = board2.createElement('point',
 
   var p = board2.createElement('point',
 
           [function(){return Math.random();},function(){ return Math.random()}],
 
           [function(){return Math.random();},function(){ return Math.random()}],

Revision as of 16:30, 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 100 random points

These 100 points are updated on the onmouseover event and get new random coordinates.