44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Generates Lycacode mask figures
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(C) 2022 Louis Heredero louis.heredero@edu.vs.ch
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"""
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import numpy as np
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from PIL import Image
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MASKS = [
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lambda x, y: x%3 == 0,
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lambda x, y: y%3 == 0,
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lambda x, y: (x+y)%3 == 0,
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lambda x, y: (x%3)*(y%3)==0,
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lambda x, y: (y//3+x//3)%2==0,
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lambda x, y: (y%3-1)*(x%3-y%3-2)*(y%3-x%3-2)==0,
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lambda x, y: (abs(13-x)+abs(13-y))%3==1,
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lambda x, y: (1-x%2 + max(0, abs(13-y)-abs(13-x))) * (1-y%2 + max(0,abs(13-x)-abs(13-y))) == 0
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]
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if __name__ == '__main__':
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R = 3
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for i, mask in enumerate(MASKS):
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a = np.ones([27, 27], dtype="uint8")
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a[R*4:R*5, :] = 2
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a[:, R*4:R*5] = 2
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a[R:R*2, R*3:R*6] = 2
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a[R*3:R*6, R:R*2] = 2
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a[-R*2:-R, -R*6:-R*3] = 2
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a[-R*6:-R*3, -R*2:-R] = 2
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a[R*4:R*5, R*4:R*5] = 1
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for y in range(a.shape[0]):
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for x in range(a.shape[1]):
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if mask(x, y) and a[y,x] == 2:
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a[y, x] = 0
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a *= 0x7f
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img = Image.fromarray(a)
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img.save(f"lycacode_mask_{i}.png")
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