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sound_wave.html
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<!DOCTYPE html>
<html>
<head>
<script language="javascript" type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.0.0/p5.js"></script>
<script language="javascript" type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.9.0/addons/p5.dom.js"></script>
<style>
body {
padding: 0;
margin: 0;
}
input[type="range"] {
-webkit-appearance: none;
width: 100%;
margin: 4.15px 0;
}
input[type="range"]:focus {
outline: none;
}
input[type="range"]::-webkit-slider-runnable-track {
width: 100%;
height: 6.7px;
cursor: pointer;
box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d;
background: #ffffff;
border-radius: 1.3px;
border: 0.2px solid #010101;
}
input[type="range"]::-webkit-slider-thumb {
box-shadow: 0.9px 0.9px 1px #000000, 0px 0px 0.9px #0d0d0d;
border: 1.1px solid #000000;
height: 15px;
width: 40px;
border-radius: 50px;
background: red;
cursor: pointer;
-webkit-appearance: none;
margin-top: -4.35px;
}
input[type="range"]:focus::-webkit-slider-runnable-track {
background: #ffffff;
}
</style>
</head>
<body>
<script>
var sliderT;
var sliderN;
let t = 0;
let row = 15;
let array = [];
function setup() {
createCanvas(600, 500);
sliderT = createSlider(0, 0.2, 0.07, 0.001);
sliderT.position(25, 30);
sliderT.style("width", "550px");
sliderN = createSlider(0, 100, 30, 1);
sliderN.position(25, 80);
sliderN.style("width", "550px");
for (let j = 0; j < row; j += 1) {
array[j] = [];
}
for (let j = 0; j < row; j += 1) {
for (let i = 0; i < row; i += 1) {
array[j][i] = new Ellipse(j * 40 + 20, i * 20 + 130);
}
}
}
function draw() {
background(220);
t += sliderT.value();
amplitude = sliderT.value();
text("Amplitude: " + amplitude, 30, 20);
wavelength = sliderN.value();
text("Wavelength: " + wavelength, 30, 70);
for (let j = 0; j < row; j += 1) {
for (let i = 0; i < row; i += 1) {
array[j][i].display();
array[j][i].update(t, j);
}
}
}
class Ellipse {
constructor(x, y) {
this.x = x;
this.y = y;
}
display() {
ellipse(this.x, this.y, 15, 15);
}
update(t, n) {
this.x += sin(n * sliderN.value() - t);
}
}
</script>
</body>
</html>