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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Non Linear Slider - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="../../themes/icon.css">
<link rel="stylesheet" type="text/css" href="../demo.css">
<script type="text/javascript" src="../../jquery.min.js"></script>
<script type="text/javascript" src="../../jquery.easyui.min.js"></script>
</head>
<body>
<h2>Non Linear Slider</h2>
<p>This example shows how to create a slider with a non-linear scale.</p>
<div style="margin:20px 0 50px 0;"></div>
<div style="padding:2px">
<input class="easyui-slider" style="width:400px" data-options="
showTip:true,
rule: [0,'PI/4','PI/2'],
min:0,
max:300,
tipFormatter:function(value){
return (value/300.0).toFixed(4);
},
converter:{
toPosition:function(value,size){
var opts = $(this).slider('options');
return Math.asin(value/opts.max)/(Math.PI)*2*size;
},
toValue:function(pos,size){
var opts = $(this).slider('options');
return Math.sin(pos/size*Math.PI/2)*opts.max;
}
},
onChange:function(v){
var opts = $(this).slider('options');
var pos = opts.converter.toPosition.call(this, v, opts.width);
var p = $('<div class=point></div>').appendTo('#cc');
p.css('top', v);
p.css(opts.reversed?'right':'left', pos);
}
">
</div>
<div style="margin-bottom:30px"></div>
<div id="cc" class="easyui-panel" style="position:relative;width:404px;height:304px;">
</div>
<style scoped="scoped">
.point{
position:absolute;
width:2px;
height:2px;
font-size:0;
background:red;
}
</style>
</body>
</html>