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<html>
<head>
<title>JSXGraph example</title>
<link rel="stylesheet" type="text/css" href="../distrib/jsxgraph.css" />
<script type="text/javascript" src="../distrib/jsxgraphcore.js"></script>
</head>
<body>
<h2>Angle</h2>
<div id="jxgbox" class="jxgbox" style="width:600px; height:450px;"></div>
<script type="text/javascript">
/* <![CDATA[ */
var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox: [-6,6,4,-3], keepaspectratio:true, axis:false, grid:false});
var p1 = board.create('point', [0, 0], {face:'+',name:"A"});
var p2 = board.create('point', [3, 4], {face:'o',name:"B"});
var p3 = board.create('point', [-1, 4], {face:'o',name:"C"});
var beta = board.create('angle', [p2,p1,p3], {radius:3});
var setAngle = function(el, val) {
var p, q, t;
p = el.anglepoint;
q = el.radiuspoint;
if (p.draggable()) {
t = board.create('transform', [val, el.center], {type:'rotate'});
p.addTransform(q, t);
p.isDraggable = false;
p.parents = [q, t.id];
}
}
beta.setAngle(90*Math.PI/180.0);
beta.free();
beta.setAngle(60*Math.PI/180.0);
board.update();
/* ]]> */
</script>
</body>
</html>
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