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Quasicrystal Pattern Generator

Python, 28 lines
 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28``` ```# Quasicrystal Pattern Generator # https://en.wikipedia.org/wiki/Quasicrystal # http://mainisusuallyafunction.blogspot.com/2011/10/quasicrystals-as-sums-of-waves-in-plane.html # FB - 20150808 import math import random from PIL import Image imgx = 512; imgy = 512 image = Image.new("RGB", (imgx, imgy)) pixels = image.load() f = random.random() * 40 + 10 # frequency p = random.random() * math.pi # phase n = random.randint(10, 20) # of rotations print f, p, n for ky in range(imgy): y = float(ky) / (imgy - 1) * 4 * math.pi - 2 * math.pi for kx in range(imgx): x = float(kx) / (imgx - 1) * 4 * math.pi - 2 * math.pi z = 0.0 for i in range(n): r = math.hypot(x, y) a = math.atan2(y, x) + i * math.pi * 2.0 / n z += math.cos(r * math.sin(a) * f + p) c = int(round(255 * z / n)) pixels[kx, ky] = (c, c, c) # grayscale image.save("quasicrystal.png", "PNG") ```

#### 1 comment ilevkivskyi 6 years, 8 months ago

Cool generator! But I have one critical comment: You might be surprised but there are many people who use Python 3.x. I just added () to print and all worked fine. This simple step will make your code much more 2 and 3 compatible.

Thanks. Created by FB36 on Sat, 8 Aug 2015 (MIT)