Highlight curve via slider: Difference between revisions
From JSXGraph Wiki
A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) No edit summary |
||
| Line 2: | Line 2: | ||
<jsxgraph height="500" width="600" board="board" box="jxgbox"> | <jsxgraph height="500" width="600" board="board" box="jxgbox"> | ||
board = JXG.JSXGraph.initBoard('jxgbox', {originX: 250, originY: 250, unitX: 25, unitY: 25}); | board = JXG.JSXGraph.initBoard('jxgbox', {originX: 250, originY: 250, unitX: 25, unitY: 25}); | ||
var s = board.createElement('slider', [[1,8],[5,8],[0,0,1]] | var s = board.createElement('slider', [[1,8],[5,8],[0,0,1]]); | ||
var g = board.createElement('functiongraph', [function(x){ return x*x;}], | var g = board.createElement('functiongraph', [function(x){ return x*x;}], | ||
Revision as of 12:17, 2 June 2009
Depending on the value of the slider s, one of the curves is highlighted.
The underlying JavaScript code
var s = board.createElement('slider', [[1,8],[5,8],[0,0,1]]);
var g = board.createElement('functiongraph', [function(x){ return x*x;}],
{
strokeColor:function(){ return (s.Value()<0.5)?'red':'blue';},
strokeWidth:function(){ return (s.Value()<0.5)?4:1;},
});
var f = board.createElement('functiongraph', [function(x){ return x+1;}],
{
strokeColor:function(){ return (s.Value()>=0.5)?'red':'blue';},
strokeWidth:function(){ return (s.Value()>=0.5)?4:1;},
});
