1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
<!DOCTYPE html>
<html>
<head>
<title>Trackball</title>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="../distrib/jsxgraph.css" />
<script type="text/javascript" src="../distrib/jsxgraphcore.js"></script>
</head>
<body>
<div>
<label for="ori-ctl">Orientation control:</label>
<select id="ori-ctl" oninput="inputOriCtl();">
<option value="trackball">Virtual trackball</option>
<option value="angles">Tait–Bryan angles</option>
</select>
</div>
<div id="jxgbox" class="jxgbox" style="width:800px; height:800px; float:left"></div>
<script type="text/javascript">
let board = JXG.JSXGraph.initBoard(
'jxgbox',
{
boundingbox: [-8, 8, 8,-8],
axis: false,
showcopyright: false,
shownavigation: false
}
);
let view = board.create(
'view3d',
[[-6, -3], [8, 8],
[[0, 5], [0, 5], [0, 5]]],
{
xPlaneRear: {fillOpacity: 0.2, gradient: null},
yPlaneRear: {fillOpacity: 0.2, gradient: null},
zPlaneRear: {fillOpacity: 0.2, gradient: null},
axis: true,
axesPosition: 'center',
xAxis: {
name: 'x',
strokeColor: 'red',
strokeWidth: 3,
withLabel: true,
label:{position: 'last', autoPosition: true}
},
yAxis: {
name: 'y',
strokeColor: 'green',
strokeWidth: 3,
withLabel: true,
label:{position: 'last', autoPosition: true}
},
zAxis: {
name: 'z',
strokeColor: 'blue',
strokeWidth: 3,
withLabel: true,
label:{position: 'last', autoPosition: true}
},
projection: 'central',
az: {
slider: {min: -0.75*Math.PI, max: 1.25*Math.PI}
},
bank: {
slider: {min: -(4/3)*Math.PI, max: (2/3)*Math.PI, visible: true}
}
}
);
let ori_ctl = document.querySelector('#ori-ctl');
function inputOriCtl() {
view.setAttribute({'trackball': {enabled: ori_ctl.value === 'trackball'}});
}
inputOriCtl();
</script>
</body>
</html>
|
