Difference between revisions of "Slider"

From JSXGraph Wiki
Jump to navigationJump to search
Line 1: Line 1:
 
Sliders enable a convenient way to experiment with mathematical constructions.
 
Sliders enable a convenient way to experiment with mathematical constructions.
Example:
+
In the example below there is a slider ''s'' which takes values between 1 and 5.
 +
The value of the slider can be accessed via ''s.Value()''.
 +
The ''x''-coordinate and the ''y''-coordinate of the point ''A'' depend on this value
 +
''s.Value()'':
 
<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 17: Line 20:
 
</script>
 
</script>
 
</html>
 
</html>
 +
 +
JavaScript code:
 +
<source lang="html4script">
 +
<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="jxgbox" class="jxgbox" style="width:600px; height:400px;"></div>
 +
</source>
 +
<source lang="javascript">
 +
var b = JXG.JSXGraph.initBoard('jxgbox', {originX: 200, originY: 200, unitX: 60, unitY: 40});       
 +
ax = b.createElement('axis', [[0,0], [1,0]], {});
 +
ay = b.createElement('axis', [[0,0], [0,1]], {});
 +
var s = b.createElement('slider',[[0,-3],[4,-3],[1,1,5]]);
 +
var a = b.createElement('point',[
 +
                      function(){return s.Value();},
 +
                      function(){return 3/s.Value();}
 +
                      ]);
 +
</source>

Revision as of 15:33, 25 January 2009

Sliders enable a convenient way to experiment with mathematical constructions. In the example below there is a slider s which takes values between 1 and 5. The value of the slider can be accessed via s.Value(). The x-coordinate and the y-coordinate of the point A depend on this value s.Value():

JavaScript code:

<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="jxgbox" class="jxgbox" style="width:600px; height:400px;"></div>
var b = JXG.JSXGraph.initBoard('jxgbox', {originX: 200, originY: 200, unitX: 60, unitY: 40});        
ax = b.createElement('axis', [[0,0], [1,0]], {});
ay = b.createElement('axis', [[0,0], [0,1]], {});
var s = b.createElement('slider',[[0,-3],[4,-3],[1,1,5]]);
var a = b.createElement('point',[
                       function(){return s.Value();},
                       function(){return 3/s.Value();}
                       ]);