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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fourier-Visualizer</title>
<meta name="author" content="Salman Hasan">
<meta name="description" content="Fourier Series and Fourier Transform Visualizer">
<!-- FONTS
–––––––––––––––––––––––––––––––––––––––––––––––––– -->
<link rel="preconnect" href="https://fonts.gstatic.com">
<link href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Asap:wght@400;500;700&display=swap" rel="stylesheet">
<!-- CSS
–––––––––––––––––––––––––––––––––––––––––––––––––– -->
<link rel="stylesheet" href="./libs/normalize.css">
<link rel="stylesheet" href="./libs/skeleton.css">
<link rel="stylesheet" href="./main.css">
<!-- JS
–––––––––––––––––––––––––––––––––––––––––––––––––– -->
<script src="./libs/p5.min.js"></script>
<script src="./libs/jquery.min.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
</head>
<body>
<div class="parent">
<div id="switch-container">
<div class="inner-container">
<div class="toggle">
<p>Fourier Transform</p>
</div>
<div class="toggle">
<p>Fourier Series</p>
</div>
</div>
<div class="inner-container" id="toggle-container">
<div class="toggle">
<p>Fourier Transform</p>
</div>
<div class="toggle">
<p>Fourier Series</p>
</div>
</div>
</div>
</div>
<div id="wrapper">
<div class="parent">
<h2>Fourier Series Visualizer</h2>
<div id="view-1" class="parent">
<h2 style="opacity: 0;">Fourier Series Visualizer</h2>
<div id="sketch-holder"></div>
<div class="sliders-container">
<div class="sliders-item" id="c_radius"></div>
<div class="sliders-item" id="n_terms"></div>
<div class="sliders-item" id="c_speed"></div>
</div>
<div class="waves-container">
<div class="waves">
<p class="title">Waves:</p>
<select id="presets">
<option value="square" selected>Square</option>
<option value="sawtooth">Sawtooth</option>
<option value="triangle">Triangle</option>
</select>
<button id="set-preset">Set</button>
</div>
<div class="equation">
<p class="title">Equation:</p>
<p id="eq">\(E=mc^2\)</p>
</div>
<div class="custom">
<form id="custom-curves">
<p class="title">Custom Curve:</p>
<div class="field-wrapper">
<p>Amplitude: </p>
<input name="amp" type="text">
</div>
<div class="field-wrapper">
<p>Frequency: </p>
<input name="freq" type="text">
</div>
<div class="field-wrapper">
<p>Phase: </p>
<input name="phase" type="text">
</div>
<button>Submit</button>
</form>
<div class="calc-curves"></div>
</div>
<div class="options">
<p class="title">Options:</p>
<div class="text-btn">
<p>Play/Pause the sketch: </p>
<button id="play">Pause</button>
</div>
<div class="text-btn">
<p>Resets the sliders: </p>
<button id="reset">Reset</button>
</div>
</div>
</div>
<div id="right-arrow" class="control-arrows right hover"></div>
</div>
<div id="view-2" class="parent">
<h2 style="opacity: 0;">Fourier Series Visualizer</h2>
<div id="amp-sketch">
<h3>Amplitude Spectrum:</h3>
</div>
<div id="phase-sketch">
<h3>Phase Spectrum:</h3>
</div>
<div id="left-arrow" class="control-arrows hover"></div>
</div>
</div>
</div>
<div id="ftransform">
<div class="parent">
<h2>Fourier Transform Visualizer</h2>
<div id="ft-sketch"></div>
<div class="ft-sketches">
<div id="ft-ampSketch">
<h4 class="ft-title">Amplitude Spectrum:</h4>
</div>
<div id="ft-phaseSketch">
<h4 class="ft-title">Phase Spectrum:</h4>
</div>
</div>
<div class="ft-options">
<div class="ft-equation">
<p class="title">Fourier Transform:</p>
<p>\(\large{X(w)=\int_{-\infty}^{+\infty}x(t)\cdot{e^{-jwt}}dt}\)</p>
</div>
<div class="dft-equation">
<p class="title">Discrete Fourier Transform:</p>
<p>\(\large{X_k =\sum_{n=0}^{N-1}x_n\cdot{e^{-j\frac{2\pi}{N}kn}}}\)</p>
</div>
<div class="upload-path">
<p class="title">Upload Path:</p>
<label class="file">
<input id="ft-file-upload" type="file" accept="application/json">
<span id="ft-file-text" class="file-custom" data-text="Choose file..."></span>
</label>
<button id="ft-set-path" class="u-full-width">Set Path</button>
</div>
<div class="gen-noise">
<p class="title">Generate Random Signal:</p>
<button id="ft-gen" class="u-full-width">Generate</button>
</div>
</div>
</div>
</div>
<a href="https://github.com/MrPancakes39/Fourier-Series-Visualizer" target="_blank" class="github-corner" aria-label="View source on GitHub">
<svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true">
<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>
<path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path>
<path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path>
</svg>
</a>
<a class="secret" href="./secret.html">🥚️</a>
<script src="./sketch.js"></script>
</body>
</html>