The Birth of a Sine Wave

Developer
Johan Karlsson
Size
2,607 Kb
Views
38,456
  1. The Birth of a Sine Wave Previews
  2. The Birth of a Sine Wave HTML Codes
  3. The Birth of a Sine Wave CSS Codes
  4. The Birth of a Sine Wave JS Codes

How do I make an the birth of a sine wave?

Animation that creates a sine wave.It has been done many times before, but I had to do my own version.. What is a the birth of a sine wave? How do you make a the birth of a sine wave? This script and codes were developed by Johan Karlsson on 26 July 2022, Tuesday.

The Birth of a Sine Wave Previews
IQ Test

The Birth of a Sine Wave - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>The Birth of a Sine Wave</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="controls" class="float"> <span title="Speed">Speed: </span><input type="range" id="speedSlider"> <span title="Radius">Radius: </span><input type="range" id="radiusSlider">
</div>
<canvas id="c"></canvas> <script src="js/index.js"></script>
</body>
</html>

The Birth of a Sine Wave - Script Codes CSS Codes

html, body { color: white; background-color: black; width: 100%; height: 100%; margin: 0; overflow: hidden;
}
@media (max-width: 600px) { #controls { display: none; }
}
span { font-size: x-large; margin-left: 10px;
}
.float { position: absolute;
}

The Birth of a Sine Wave - Script Codes JS Codes

/* Johan Karlsson (DonKarlssonSan)
*/
(function () { var canvas = document.getElementById("c"); canvas.width = window.innerWidth; canvas.height = window.innerHeight; var ctx = canvas.getContext("2d"); var points = []; var x, y; var angle = 0; var r = 100; var leftMargin = 10; var speed = 0.02; ctx.strokeStyle = "white"; ctx.fillStyle = "black"; function draw() { ctx.fillRect(0, 0, canvas.width, canvas.height); ctx.beginPath(); ctx.arc(r + leftMargin, canvas.height/2, r, 0, Math.PI*2, true); ctx.stroke(); x = Math.cos(angle) * r + r + leftMargin; y = Math.sin(angle) * r + canvas.height/2; points.push(y); // Ticking bomb, it just grows... ctx.beginPath(); ctx.arc(x, y, 4, 0, Math.PI*2, true); ctx.fill(); for(var xx = 0; xx < points.length; ++xx) { ctx.lineTo(r * 2 + leftMargin +xx, points[points.length-xx]); } ctx.stroke(); angle += speed; window.requestAnimationFrame(draw); } window.requestAnimationFrame(draw); var speedSlider = document.getElementById("speedSlider"); speedSlider.step = 0.001; speedSlider.min = 0.001; speedSlider.max = 0.3; speedSlider.value = speed; speedSlider.addEventListener("change", function () { speed = parseFloat(this.value); }); var radiusSlider = document.getElementById("radiusSlider"); radiusSlider.max = 300; radiusSlider.value = r; radiusSlider.addEventListener("change", function () { r = parseInt(this.value); }); function resize () { if(canvas.width != window.innerWidth) {	canvas.width = window.innerWidth; } if(canvas.height != window.innerHeight) {	canvas.height = window.innerHeight; } ctx.strokeStyle = "white"; ctx.fillStyle = "black"; } function debounce(func, wait, immediate) { var timeout; return function() { var context = this, args = arguments; var later = function() { timeout = null; if (!immediate) func.apply(context, args); }; var callNow = immediate && !timeout; clearTimeout(timeout); timeout = setTimeout(later, wait); if (callNow) func.apply(context, args); }; }; var debouncedResize = debounce(resize, 250); window.addEventListener("resize", debouncedResize, false);
})();
The Birth of a Sine Wave - Script Codes
The Birth of a Sine Wave - Script Codes
Home Page Home
Developer Johan Karlsson
Username DonKarlssonSan
Uploaded July 26, 2022
Rating 4.5
Size 2,607 Kb
Views 38,456
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