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labels.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>MathBox - Label Everything</title>
<script
type="text/javascript"
src="https://cdn.jsdelivr.net/npm/three@0.137.0/build/three.min.js"
></script>
<script
type="text/javascript"
src="https://cdn.jsdelivr.net/npm/three@0.137.0/examples/js/controls/OrbitControls.js"
></script>
<!--
- a minified version mathbox.min.js is also available;
- recommend using a specific version (not @latest) in public sites
-->
<script
type="text/javascript"
src="https://cdn.jsdelivr.net/npm/mathbox@latest/build/bundle/mathbox.js"
></script>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/mathbox@latest/build/mathbox.css"
/>
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.css"
/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.js"></script>
<meta name="viewport" content="initial-scale=1, maximum-scale=1" />
</head>
<body>
<div style="display: none">
<select id="button" style="padding: 10 30px; font-size: inherit">
<option value="HTML">HTML</option>
</select>
</div>
<script>
var button = document.querySelector("#button");
var symbols = [
"\\alpha",
"\\theta",
"o",
"\\tau",
"\\beta",
"\\vartheta",
"\\pi",
"\\upsilon",
"\\gamma",
"\\varpi",
"\\phi",
"\\delta",
"\\kappa",
"\\rho",
"\\varphi",
"\\epsilon",
"\\lambda",
"\\varrho",
"\\chi",
"\\varepsilon",
"\\mu",
"\\sigma",
"\\psi",
"\\zeta",
"\\nu",
"\\varsigma",
"\\omega",
"\\eta",
"i",
];
// Define VDOM handler to clone real DOM elements
var clone = MathBox.DOM.createClass({
render: function (el, props, children) {
var button = children.cloneNode(true);
return button;
},
});
// Define VDOM handler to format 'latex' into an HTML span
var latex = MathBox.DOM.createClass({
render: function (el) {
this.props.innerHTML = katex.renderToString(this.children);
return el("span", this.props);
},
});
mathbox = MathBox.mathBox({
plugins: ["core", "controls", "cursor"],
controls: {
klass: THREE.OrbitControls,
},
loop: {
start: window == window.top,
},
camera: {
near: 0.01,
far: 1000,
},
});
three = mathbox.three;
three.camera.position.set(-1, 1, 2.5);
three.camera.lookAt(new THREE.Vector3());
three.renderer.setClearColor(new THREE.Color(0xffffff), 1.0);
var view = mathbox
.set({
scale: null,
})
.polar({
range: [
[-2, 2],
[-1, 1],
[-1, 1],
],
scale: [2, 1, 1],
bend: 0.25,
});
view
.interval({
width: 48,
expr: function (emit, x, i, t) {
y = Math.sin(x + t / 4) * 0.5 + 0.75;
emit(x, y);
},
channels: 2,
})
.line({
color: 0x30c0ff,
width: 16,
})
.resample({
width: 8,
})
.point({
color: 0x30c0ff,
size: 60,
})
.html({
width: 8,
height: 1,
expr: function (emit, el, i, j, k, l, t) {
// Emit latex
var color = ["#30D0FF", "#30A0FF"][i % 2];
var a =
Math.round(
Math.sqrt(t * t + t + 3) +
Math.abs(Math.cos(t * 0.1 + i + i * i) * 50)
) % symbols.length;
var b = Math.round(Math.sqrt(t * t + Math.sin(t + i * i) + 5));
emit(
el(
latex,
{ style: { color: color } },
"\\sqrt{L^AT_EX + " +
(i + b + 1) +
" \\pi^{" +
symbols[a] +
"}}"
)
);
},
})
.dom({
snap: false,
offset: [0, 32],
depth: 0,
zoom: 1,
outline: 2,
size: 20,
});
view
.interval({
width: 192,
expr: function (emit, x, i, t) {
y = Math.sin(x + t / 4) * 0.5 + 0.25;
emit(x, y);
},
channels: 2,
})
.group()
.shader(
{
code: [
"uniform float time;",
"vec4 getSample(vec4 xyzw);",
"vec4 getRippleSample(vec4 xyzw) {",
" vec4 pos = getSample(xyzw);",
" pos = pos + .05 * vec4(sin(pos.yxz * 3.0 + time + sin(pos.zxy * 2.9 + time * .339) * 2.0), 0.0);",
" pos = pos + .05 * vec4(sin(pos.yxz * 5.0 + time + sin(pos.zxy * 3.9 + time * .439) * 2.0), 0.0);",
" pos = pos + .05 * vec4(sin(pos.yxz * 7.0 + time + sin(pos.zxy * 4.9 + time * .539) * 2.0), 0.0);",
" return pos;",
"}",
].join("\n"),
},
{
time: function (t) {
return t;
},
}
)
.resample()
.line({
color: 0x3090ff,
width: 20,
})
.resample({
shader: null,
width: 8,
})
.point({
color: 0x3090ff,
size: 80,
shape: "down",
})
.html({
width: 8,
height: 1,
expr: function (emit, el, i, j, k, l, t) {
// Emit copies of the button
emit(el(clone, { i: i + 1, j: j + 1 }, button));
},
})
.dom({
snap: true,
offset: [0, 40],
depth: 0,
size: 24,
zoom: 1,
outline: 2,
pointerEvents: true,
})
.end();
view
.interval({
width: 48,
expr: function (emit, x, i, t) {
y = Math.sin(x + t / 4) * 0.5 - 0.25;
emit(x, y);
},
channels: 2,
})
.line({
color: 0xc04000,
width: 20,
})
.resample({
width: 8,
})
.point({
color: 0xc04000,
size: 80,
shape: "square",
})
.html({
width: 8,
expr: function (emit, el, i, j, k, l, t) {
// Emit Virtual HTML table
var color = ["#c02050", "#c07020"][i % 2];
emit(
el(
"table",
{
style: {
border: "4px dashed rgba(192, 32, 48, .5)",
color: "rgba(96, 16, 32, 1)",
background: "rgba(255, 255, 255, .75)",
},
},
[
el("tr", null, [
el(
"td",
{ style: { textAlign: "center", paddingBottom: "25px" } },
el("strong", null, "HTML")
),
]),
el("tr", null, [
el(
"td",
{ style: { textAlign: "center", fontSize: "1.25em" } },
[
el(
"span",
{ style: { color: color } },
Math.floor(t * 2 + i / 2)
),
el(
"span",
null,
String.fromCharCode(
i + 0x8000 + (Math.floor(t + i / 4) % 100)
)
),
]
),
]),
]
)
);
},
})
.dom({
snap: false,
offset: [0, 0],
depth: 0.5,
size: 36,
zoom: 1,
});
view
.interval({
width: 48,
expr: function (emit, x, i, t) {
y = Math.sin(x + t / 4) * 0.5 - 0.75;
emit(x, y);
},
channels: 2,
})
.line({
color: 0x0,
width: 20,
})
.resample({
width: 8,
})
.point({
color: 0x0,
size: 80,
shape: "diamond",
})
.text({
width: 8,
height: 5,
weight: "bold",
detail: 48,
sdf: 6,
expr: function (emit, i, j, k, t) {
// Emit GL text
var str =
Math.floor(t * 2 + i / 2) +
"GL" +
String.fromCharCode(
i + 0x8000 + (Math.floor(t + i / 8) % 100) * 3
);
emit(str);
},
})
.array({
width: 8,
expr: function (emit, i, t) {
var color = [
[192, 192, 192],
[40, 40, 40],
][i % 2];
emit(color[0] / 255, color[1] / 255, color[2] / 255, 1);
},
channels: 4,
})
.label({
snap: false,
offset: [0, -58],
depth: 0.5,
size: 42,
points: "<<",
colors: "<",
color: "#fff",
outline: 3,
zIndex: 1,
});
</script>
</body>
</html>