123niel/fractals
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

sierpinski

Browse source
This commit is contained in:
Niel 2019-01-22 17:38:35 +01:00
commit c17bbb39f3
4 changed files with 64 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
p5/p5.dom.min.js vendored Normal file
View file

File diff suppressed because one or more lines are too long

15
p5/p5.min.js vendored Normal file
View file

File diff suppressed because one or more lines are too long

15
sierpinski/index.html Normal file
View file

@ -0,0 +1,15 @@
<!DOCTYPE html>
<html>
<head>
<script src="../p5/p5.min.js"></script>
<script src="../p5/p5.dom.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
<meta charset="utf-8">
</head>
<body>
<script src="sketch.js"></script>
</body>
</html>

33
sierpinski/sketch.js Normal file
View file

@ -0,0 +1,33 @@
let v1, v2, v3;
function setup() {
createCanvas(500, 450);
v1 = createVector(250, 50);
v2 = createVector(50, 396);
v3 = createVector(450, 396);
background(0);
stroke(255);
sierpinski(v1, v2, v3, 8);
}
function sierpinski(p1, p2, p3, i) {
if (i === 1) tri(p1, p2, p3)
else {
let m1 = half(p2, p3);
let m2 = half(p3, p1);
let m3 = half(p1, p2)
sierpinski(p1, m3, m2, i-1);
sierpinski(p2, m3, m1, i-1);
sierpinski(p3, m1, m2, i-1);
}
}
function tri(p1, p2, p3) {
line(p1.x, p1.y, p2.x, p2.y);
line(p1.x, p1.y, p3.x, p3.y);
line(p3.x, p3.y, p2.x, p2.y);
}
function half(p1, p2) {
return p1.copy().add(p2).div(2);
}