Limacon: Difference between revisions

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(New page: With JSXGraph elements can be traced to visualize construced loci. <html> <link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" /> <script typ...)
 
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<html>
<html>
<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>
<input type="button" value="Clear trace" onClick="clearTrace()" />
<input type="button" value="Clear trace" onClick="clearTrace()" />
<div id="jxgbox" class="jxgbox" style="width:500px; height:430px;"></div>
</html>
<script language="JavaScript">
<jsxgraph box="jxgbox" width="500" height="430">
        var board = JXG.JSXGraph.initBoard('jxgbox', {originX: 50, originY: 400, unitX: 25, unitY: 25});
var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox: [-2, 16, 18, -2]});
        var xax = board.createElement('axis', [[0,0],[1,0]]);
        var yax = board.createElement('axis', [[0,0],[0,1]]);


        var p3 = board.createElement('point', [8, 4], {style:1,name:"P_{3}",fixed:true});
var p3 = board.create('point', [8, 4], {face:'x',size:3,name:"P_{3}",fixed:true});
        var p4 = board.createElement('point', [8, 8], {style:2,name:"P_{4}",fixed:true});
var p4 = board.create('point', [8, 8], {size:4,face:'x',name:"P_{4}",fixed:true});
        var c1 = board.createElement('circle', [p4, p3]);
var c1 = board.create('circle', [p4, p3]);


        var p6 = board.createElement('glider', [0, 0, c1], {style:3,name:"P_{6}"});
var p6 = board.create('glider', [0, 0, c1], {face:'o',size:1,name:"P_{6}"});
        var g = board.createElement('line', [p3, p6]);
var g = board.create('line', [p3, p6]);


        var c2 = board.createElement('circle', [p6, 3]);
var c2 = board.create('circle', [p6, 3]);


        var p14_1 = board.createElement('point', [board.intersectionFunc(c2,g,0)], {style:8,name:"M",trace:true});
var p14_1 = board.create('intersection', [c2,g,0], {size:3,face:'[]',name:"M",trace:true});
        var p14_2 = board.createElement('point', [board.intersectionFunc(c2,g,1)], {style:8,name:"N",trace:true});
var p14_2 = board.create('intersection', [c2,g,1], {size:3,face:'[]',name:"N",trace:true});


        function clearTrace() {
function clearTrace() {
                p14_1.clearTrace();
    p14_1.clearTrace();
                p14_2.clearTrace();
    p14_2.clearTrace();
        }
}
</script>
clearTrace();
</html>
</jsxgraph>


==References==
==References==
Line 38: Line 33:


<source lang="javascript">
<source lang="javascript">
        var board = JXG.JSXGraph.initBoard('jxgbox', {originX: 50, originY: 400, unitX: 25, unitY: 25});
var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox: [-2, 16, 18, -2]});
        var xax = board.createElement('axis', [[0,0],[1,0]]);
        var yax = board.createElement('axis', [[0,0],[0,1]]);


        var p3 = board.createElement('point', [8, 4], {style:1,name:"P_{3}",fixed:true});
var p3 = board.create('point', [8, 4], {face:'x',size:3,name:"P_{3}",fixed:true});
        var p4 = board.createElement('point', [8, 8], {style:2,name:"P_{4}",fixed:true});
var p4 = board.create('point', [8, 8], {size:4,face:'x',name:"P_{4}",fixed:true});
        var c1 = board.createElement('circle', [p4, p3]);
var c1 = board.create('circle', [p4, p3]);


        var p6 = board.createElement('glider', [0, 0, c1], {style:3,name:"P_{6}"});
var p6 = board.create('glider', [0, 0, c1], {face:'o',size:1,name:"P_{6}"});
        var g = board.createElement('line', [p3, p6]);
var g = board.create('line', [p3, p6]);


        var c2 = board.createElement('circle', [p6, 3]);
var c2 = board.create('circle', [p6, 3]);


        var p14_1 = board.createElement('point', [board.intersectionFunc(c2,g,0)], {style:8,name:"M",trace:true});
var p14_1 = board.create('intersection', [c2,g,0], {size:3,face:'[]',name:"M",trace:true});
        var p14_2 = board.createElement('point', [board.intersectionFunc(c2,g,1)], {style:8,name:"N",trace:true});
var p14_2 = board.create('intersection', [c2,g,1], {size:3,face:'[]',name:"N",trace:true});


        function clearTrace() {
function clearTrace() {
                p14_1.clearTrace();
    p14_1.clearTrace();
                p14_2.clearTrace();
    p14_2.clearTrace();
        }
}
</source>
</source>


[[Category:Examples]]
[[Category:Examples]]
[[Category:Curves]]

Latest revision as of 13:04, 3 March 2021

With JSXGraph elements can be traced to visualize construced loci.

References

The underlying JavaScript code

var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox: [-2, 16, 18, -2]});

var p3 = board.create('point', [8, 4], {face:'x',size:3,name:"P_{3}",fixed:true});
var p4 = board.create('point', [8, 8], {size:4,face:'x',name:"P_{4}",fixed:true});
var c1 = board.create('circle', [p4, p3]);

var p6 = board.create('glider', [0, 0, c1], {face:'o',size:1,name:"P_{6}"});
var g = board.create('line', [p3, p6]);

var c2 = board.create('circle', [p6, 3]);

var p14_1 = board.create('intersection', [c2,g,0], {size:3,face:'[]',name:"M",trace:true});
var p14_2 = board.create('intersection', [c2,g,1], {size:3,face:'[]',name:"N",trace:true});

function clearTrace() {
    p14_1.clearTrace();
    p14_2.clearTrace();
}
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