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Prime Numbers - Visualization (p5js)
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<!DOCTYPE html><html lang="en"><head> | |
<script src="p5.js"></script> | |
<script src="p5.sound.min.js"></script> | |
<link rel="stylesheet" type="text/css" href="style.css"> | |
<meta charset="utf-8"> | |
</head> | |
<body> | |
<script src="prime.js"></script> | |
<script src="particle.js"></script> | |
<script src="sketch_rotated.js"></script> | |
<div> | |
<h1>Change Path when n is Prime</h1> | |
<p>Inspired from the following Reddit post showcasing <a href="https://www.reddit.com/r/dataisbeautiful/comments/jfinu9/oc_prime_numbers_over_20_million_prime_numbers/">20 million Prime number graph</a></p><p></p></div> | |
<p> And the <a href="https://www.youtube.com/watch?v=vqE8DMfOajk">Object Trails video</a> from The Coding Train (Daniel Shiffman)</p> | |
</body></html> |
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// https://github.com/CodingTrain/website/tree/main/Tutorials/P5JS/p5.js/09/9.07_p5.js_Drawing_Object_Trails | |
// https://www.youtube.com/watch?v=vqE8DMfOajk | |
function Particle(x, y) { | |
this.x = x; | |
this.y = y; | |
this.history = [createVector(this.x, this.y)]; | |
this.update = function(a, b) { | |
this.x += a; | |
this.y += b; | |
var v = createVector(this.x, this.y); | |
this.history.push(v); | |
// if (this.history.length > 100) { | |
// this.history.splice(0, 1); | |
// } | |
// print(this.x, this.y); | |
}; | |
this.show = function() { | |
stroke(50); | |
fill(0, 50); | |
ellipse(this.x, this.y, 20, 20); | |
noFill(); | |
beginShape(); | |
for (var i = 0; i < this.history.length; i++) { | |
var pos = this.history[i]; | |
//fill(random(255)); | |
//ellipse(pos.x, pos.y, i, i); | |
vertex(pos.x, pos.y); | |
} | |
endShape(); | |
}; | |
} |
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function isPrime(n) { | |
// Corner case | |
if (n <= 1) return false; | |
// Check from 2 to n-1 | |
for (i=2; i<n; i++) | |
if (n%i == 0) | |
return false; | |
return true; | |
} |
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var particles = []; | |
function setup() { | |
createCanvas(1500, 800); | |
background(200); | |
particle = new Particle(width - 100, height - 100); | |
// frameRate(10); | |
noLoop(); | |
} | |
a = 1; | |
b = 1; | |
j = 2; | |
k = 0; | |
function draw() { | |
// scale(2); | |
// for (j = 1; j < 200; j++) { | |
if (isPrime(j)) { | |
[a, b] = [1 * b, -1 * a]; | |
} | |
Curr_X = particle.x; | |
Curr_Y = particle.y; | |
background(200); | |
particle.update((a * (j - k)) * 5, (b * (j - k)) * 5); | |
particle.show(); | |
k = j | |
// noLoop(); | |
j++; | |
scale(1); | |
// line(frameCount, 0, frameCount, height); | |
fill(0, 0, 0); | |
textSize(25); | |
text("Current Number (n): " + j, 10, 30); | |
textSize(15); | |
text("Click anywhere and hold to start", 10, 60); | |
// } | |
} | |
function mousePressed() { | |
loop(); | |
} | |
function mouseReleased() { | |
noLoop(); | |
} |
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function setup() { | |
createCanvas(1000, 800); | |
background(200); | |
particle = new Particle(0, 0); | |
// frameRate(10); | |
noLoop(); | |
} | |
a = 1; | |
b = 1; | |
j = 2; | |
k = 0; | |
function draw() { | |
translate(width - 100, height / 2) | |
rotate(-PI / 4); | |
// scale(2); | |
// for (j = 1; j < 200; j++) { | |
if (isPrime(j)) { | |
[a, b] = [1 * b, -1 * a]; | |
} | |
Curr_X = particle.x; | |
Curr_Y = particle.y; | |
background(200); | |
particle.update((a * (j - k)) * 5, (b * (j - k)) * 5); | |
particle.show(); | |
k = j | |
// noLoop(); | |
j++; | |
rotate(PI / 4); | |
translate(-width + 100, -height / 2 ) | |
scale(1); | |
// line(frameCount, 0, frameCount, height); | |
fill(0, 0, 0); | |
textSize(25); | |
text("Current Number (n): " + j, 10, 30); | |
textSize(15); | |
text("Click anywhere and hold to start", 10, 60); | |
// } | |
} | |
function mousePressed() { | |
loop(); | |
} | |
function mouseReleased() { | |
noLoop(); | |
} |
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html, body { | |
display: grid; | |
margin: auto; | |
padding: 0; | |
} | |
h1{ | |
text-align: center; | |
} | |
canvas { | |
display: block; | |
} | |
p{ | |
margin-top:0; | |
} |
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