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<!DOCTYPE html>
<html>
<head>
<title>Sphere–sphere intersection</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="proj">Projection:</label>
<select id="proj" oninput="inputProjectionType();">
<option value="parallel">Parallel</option>
<option value="central">Central</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, -4], [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},
bank: {slider: {visible: true}},
depthOrderPoints: true
}
);
// Radius balance slider
let balance = board.create(
'slider',
[
[-6, 7], [2, 7],
[-1, 0, 1]
], {
name: 'radius balance'
}
);
// Two centers
let center1 = view.create(
'point3d',
[2, 2.5, 2.5],
{
withLabel: false,
size: 5,
strokeWidth: 1,
strokeColor: '#600030',
fillColor: 'white',
gradient: 'radial',
gradientSecondColor: '#a00050',
gradientFX: 0.7,
gradientFY: 0.3,
highlightStrokeColor: '#600030'
}
);
let center2 = view.create(
'point3d',
[3, 2.5, 2.5],
{
withLabel: false,
size: 5,
strokeWidth: 1,
strokeColor: '#600030',
fillColor: 'white',
gradient: 'radial',
gradientSecondColor: '#a00050',
gradientFX: 0.7,
gradientFY: 0.3,
highlightStrokeColor: '#600030'
}
);
// Two spheres
let sphere1 = view.create(
'sphere3d',
[center1, () => Math.pow(2, 0.5*balance.Value())],
{
strokeColor: '#0000ff',
strokeOpacity: 0.5,
fillColor: 'white',
gradient: 'radial',
gradientSecondColor: '#0000ff',
gradientFX: 0.7,
gradientFY: 0.3,
fillOpacity: 0.2
}
);
let sphere2 = view.create(
'sphere3d',
[center2, () => Math.pow(2, -0.5*balance.Value())],
{
strokeColor: '#00ff80',
strokeOpacity: 0.5,
fillColor: 'white',
gradient: 'radial',
gradientSecondColor: '#00ff80',
gradientFX: 0.7,
gradientFY: 0.3,
fillOpacity: 0.2
}
);
// Intersection circle
let ixnCircle = view.create(
'intersectioncircle3d',
[sphere1, sphere2],
{
strokeColor: 'black',
strokeOpacity: 0.5
}
);
proj = document.querySelector('#proj');
function inputProjectionType() {
view.setAttribute({'projection': proj.value});
}
inputProjectionType();
</script>
</body>
</html>
|
