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Louis Heredero
2022-09-22 13:13:15 +02:00
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Generates QR Code placement path figure
(C) 2022 Louis Heredero louis.heredero@edu.vs.ch
"""
import pygame
import numpy as np
WIDTH, HEIGHT = 580, 580
matrix = np.array([
[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0],
[ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0],
[ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0],
[ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[-0.5, -0.5, -0.5, -0.5, -0.5, -0.5, 1.0, -0.5, -0.5, -1.0, -1.0, -1.0, -1.0, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5],
[-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, 0.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, 1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, 0.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[-1.0, -1.0, -1.0, -1.0, -1.0, -1.0, 1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0],
[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, -0.5, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0]
])
if __name__ == "__main__":
pygame.init()
surf = pygame.Surface([WIDTH, HEIGHT])
W, H = WIDTH/(matrix.shape[1]+8), HEIGHT/(matrix.shape[0]+8)
hW, hH = W/2, H/2
surf.fill((255,255,255))
m = ((matrix.copy()+2)%3)*127
mat = np.ones((m.shape[0]+8, m.shape[1]+8))*255
mat[4:-4, 4:-4] = m
for y in range(mat.shape[0]):
for x in range(mat.shape[1]):
col = mat[y, x]
col = (col, col, col)
pygame.draw.rect(surf, col, [x*W, y*H, W, H])
points = []
all_points = []
#Place data
dir_ = -1 #-1 = up | 1 = down
x, y = matrix.shape[1]-1, matrix.shape[0]-1
zigzag = 0
while x >= 0:
all_points.append([(x+4)*W+hW, (y+4)*H+hH])
if matrix[y,x] == -1:
points.append([(x+4)*W+hW, (y+4)*H+hH])
if ((dir_+1)/2 + zigzag)%2 == 0:
x -= 1
else:
y += dir_
x += 1
if y == -1 or y == matrix.shape[0]:
all_points.append([(x+4)*W+hW, (y+4)*H+hH])
dir_ = -dir_
y += dir_
x -= 2
else:
zigzag = 1-zigzag
#Vertical timing pattern
if x == 6:
x -= 1
all_points.append([(x+4)*W+hW, (y+4)*H+hH])
for p in all_points:
pygame.draw.circle(surf, (255,0,0), p, 3)
pygame.draw.lines(surf, (255,0,0), False, all_points)
for p in points:
pygame.draw.circle(surf, (255,255,255), p, 3)
pygame.draw.lines(surf, (255,255,255), False, points)
pygame.image.save(surf, "qr_plcmt_path.png")