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amazing-qr/matrix.py

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2016-08-28 16:50:37 +08:00
# -*- coding: utf-8 -*-
2016-08-28 23:07:55 +08:00
from mylibs.constant import *
def get_qrmatrix(ver, ecl, bits):
num = (ver - 1) * 4 + 21
qrmatrix = [([None] * num * num)[i:i+num] for i in range(num * num) if i % num == 0]
# Add the Finder Patterns & Add the Separators
add_finder_and_separator(qrmatrix)
# Add the Alignment Patterns
add_alignment(ver, qrmatrix)
# Add the Timing Patterns
add_timing(qrmatrix)
# Add the Dark Module and Reserved Areas
add_dark_and_reserving(ver, qrmatrix)
# Place the Data Bits
place_bits(bits, qrmatrix)
# Data Masking
return qrmatrix
def add_finder_and_separator(m):
for i in range(8):
for j in range(8):
if i in (0, 6):
m[i][j] = m[-i-1][j] = m[i][-j-1] = 0 if j == 7 else 1
elif i in (1, 5):
m[i][j] = m[-i-1][j] = m[i][-j-1] = 1 if j in (0, 6) else 0
elif i == 7:
m[i][j] = m[-i-1][j] = m[i][-j-1] = 0
else:
m[i][j] = m[-i-1][j] = m[i][-j-1] = 0 if j in (1, 5, 7) else 1
def add_alignment(ver, m):
if ver > 1:
coordinates = alig_location[ver-2]
for i in coordinates:
for j in coordinates:
if m[i][j] is None:
add_an_alignment(i, j, m)
def add_an_alignment(row, column, m):
for i in range(row-2, row+3):
for j in range(column-2, column+3):
m[i][j] = 1 if i in (row-2, row+2) or j in (column-2, column+2) else 0
m[row][column] = 1
def add_timing(m):
for i in range(8, len(m)-8):
m[i][6] = m[6][i] = 1 if i % 2 ==0 else 0
def add_dark_and_reserving(ver, m):
for j in range(9):
m[8][j] = m[8][-j-1] = m[j][8] = m[-j-1][8] = 0
m[8][6] = m[6][8] = m[-8][8] = 1
if ver > 6:
for i in range(6):
for j in (-9, -10, -11):
m[i][j] = m[j][i] = 0
def place_bits(bits, m):
bit = (int(i) for i in bits)
up = True
for a in range(len(m)-1, 0, -2):
a = a-1 if a <= 6 else a
irange = range(len(m)-1, -1, -1) if up else range(len(m))
for i in irange:
for j in (a, a-1):
if m[i][j] is None:
m[i][j] = next(bit)
up = not up
if __name__ == '__main__':
m = get_qrmatrix(7,'H',1)
for i in range(len(m)):
print(m[i])