Infinity: Difference between revisions
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== Just enjoy this construction... == | == Just enjoy this construction... == | ||
<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" /> | ||
<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> | ||
<div id="jxgbox" class="jxgbox" style="width:800px; height:700px;"></div> | <div id="jxgbox" class="jxgbox" style="width:800px; height:700px;"></div> | ||
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<source lang="xml"> | <source lang="xml"> | ||
<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" /> | ||
<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> | ||
<div id="jxgbox" class="jxgbox" style="width:800px; height:700px;"></div> | <div id="jxgbox" class="jxgbox" style="width:800px; height:700px;"></div> |
Revision as of 14:22, 29 October 2009
Just enjoy this construction...
<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/jsxgraphcore.js"></script>
<div id="jxgbox" class="jxgbox" style="width:800px; height:700px;"></div>
<script language="JavaScript">
var board = JXG.JSXGraph.initBoard('jxgbox', {originX: 300, originY: 300, unitX: 50, unitY: 50});
board.suspendUpdate();
var S = board.createElement('slider', [[-5,-6],[5,-6],[0,0.95,1]], {name:'S'});
var hue = board.createElement('slider', [[-5,-7],[5,-7],[0,8,36]], {name:'color'});
var points = new Array();
points[0] = board.createElement('point',[5, 5], {name:' '});
points[1] = board.createElement('point',[-5, 5], {name:' '});
points[2] = board.createElement('point',[-5, -5], {name:' '});
points[3] = board.createElement('point',[5, -5], {name:' '});
function quadrangle(pt, n) {
var col;
var arr = new Array();
for(var i = 0; i < 4; i++) {
arr[i] = board.createElement('point',
[function(t) {
return function () {var x = pt[t].X();
var x1 = pt[(t+1)%4].X();
var s = S.Value();
return x+(x1-x)*s;
}}(i),
function(t) {
return function () {var y = pt[t].Y();
var y1 = pt[(t+1)%4].Y();
var s = S.Value();
return y+(y1-y)*s;
}}(i)
],
{style:3, name:"",withLabel:false,visible:false});
}
col = function(){return JXG.hsv2rgb(hue.Value()*n,0.7,0.9);};
board.createElement('polygon',pt, {fillColor:col});
if(n>0)
quadrangle(arr, --n);
}
quadrangle(points,30);
board.unsuspendUpdate();
</script>