Euler line source code: Difference between revisions
From JSXGraph Wiki
A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) |
||
(One intermediate revision by the same user not shown) | |||
Line 69: | Line 69: | ||
</head> | </head> | ||
<body> | <body> | ||
<div id="box_euler_line" class='jxgbox' style='width:600px; height:600px;'></div> | <div id="box_euler_line" class='jxgbox' style='width:600px; height:600px;'></div> | ||
<script type='text/javascript'> | <script type='text/javascript'> | ||
Line 134: | Line 133: | ||
===JessieCode code=== | ===JessieCode code=== | ||
The | The same example with JessieCode: | ||
<source lang="html4strict"> | <source lang="html4strict"> | ||
<html> | <html> | ||
Line 145: | Line 144: | ||
</head> | </head> | ||
<body> | <body> | ||
<script type='text/jessiecode'> | <script type='text/jessiecode'> | ||
</source> | </source> | ||
Line 199: | Line 197: | ||
strokeColor:'#901B77' | strokeColor:'#901B77' | ||
>>; | >>; | ||
</source> | </source> | ||
<source lang="html4strict"> | <source lang="html4strict"> |
Revision as of 08:28, 9 July 2013
Here is the source code cited in the paper Interactive Geometry for the web and mobile devices by Matthias Ehmann, Michael Gerhäuser, Carsten Miller, Heiko Vogel, Alfred Wassermann (2012).
The final construction looks like this
JSXGraph code
<html>
<head>
<title>Euler line with JSXGraph</title>
<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/latest/jsxgraphcore.js"></script>
</head>
<body>
<div id="box_euler_line" class='jxgbox' style='width:600px; height:600px;'></div>
<script type='text/javascript'>
var board = JXG.JSXGraph.initBoard('jxgbox', {
boundingbox: [-1.5, 2, 1.5, -1], keepaspectratio:true
});
// Triangle ABC
var A = board.create('point', [1, 0]),
B = board.create('point', [-1, 0]),
C = board.create('point', [0.2, 1.5]),
pol = board.create('polygon',[A,B,C], {
fillColor: '#FFFF00',
borders: {
strokeWidth: 2,
strokeColor: '#009256'
}
});
// Perpendiculars and orthocenter i1
var pABC = board.create('perpendicular', [pol.borders[0], C]),
pBCA = board.create('perpendicular', [pol.borders[1], A]),
pCAB = board.create('perpendicular', [pol.borders[2], B]),
i1 = board.create('intersection', [pABC, pCAB, 0]);
// Midpoints of segments
var mAB = board.create('midpoint', [A, B]),
mBC = board.create('midpoint', [B, C]),
mCA = board.create('midpoint', [C, A]);
// Line bisectors and and centroid i2
var ma = board.create('segment', [mBC, A]),
mb = board.create('segment', [mCA, B]),
mc = board.create('segment', [mAB, C]),
i2 = board.create('intersection', [ma, mc, 0]);
// Circum circle and circum center
var c = board.create('circumcircle', [A, B, C], {
strokeColor: '#000000',
dash: 3,
strokeWidth: 1,
center: {
name: 'i_3',
withlabel:true,
visible: true
}
});
// Euler line
var euler = board.create('line', [i1, i2], {
dash:1,
strokeWidth: 2,
strokeColor:'#901B77'
});
</script>
</body>
</html>
JessieCode code
The same example with JessieCode:
<html>
<head>
<title>Euler line with JSXGraph</title>
<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/latest/jsxgraphcore.js"></script>
</head>
<body>
<script type='text/jessiecode'>
$board.setView([-1.5, 2, 1.5, -1]);
// Triangle ABC
A = point(1, 0);
B = point(-1, 0);
C = point(0.2, 1.5);
pol = polygon(A,B,C) <<
fillColor: '#FFFF00',
borders: <<
strokeWidth: 2,
strokeColor: '#009256'
>>
>>;
// Perpendiculars and orthocenter i1
pABC = perpendicular(pol.borders[0], C);
pBCA = perpendicular(pol.borders[1], A);
pCAB = perpendicular(pol.borders[2], B);
i1 = intersection(pABC, pCAB, 0);
// Midpoints of segments
mAB = midpoint(A, B);
mBC = midpoint(B, C);
mCA = midpoint(C, A);
// Line bisectors and centroid i2
ma = segment(mBC, A);
mb = segment(mCA, B);
mc = segment(mAB, C);
i2 = intersection(ma, mc, 0);
// Circum circle and circum center
c = circumcircle(A, B, C) <<
strokeColor: '#000000',
dash: 3,
strokeWidth: 1,
center: <<
name: 'i_3',
withlabel:true,
visible: true
>>
>>;
// Euler line
euler = line(i1, i2) <<
dash:1,
strokeWidth: 2,
strokeColor:'#901B77'
>>;
</script>
</body>
</html>