def _find_horizontal_line_space(self, v_ind, prev_space, borders):
"""find left and right border of horizontal space in given line (v_ind)
if there is several of them"""
zeros = sspace._find_zeros(self.line.im[v_ind, range(prev_space[0], prev_space[1])])
if len(zeros) > 1:
print("Expected 0 or 1 spaces at next line, but got %s" %
[(z[0] + prev_space[0], z[1] + prev_space[0]) for z in zeros])
max_length = 0
zero = [0, 0]
for z in zeros:
if z[1] - z[0] > max_length:
zero = z
elif len(zeros) == 1:
zero = zeros[0]
else:
return None
right = zero[1] + prev_space[0]
while right < borders[1] and self.line.im[v_ind, right] == 0:
right += 1
left = zero[0] + prev_space[0]
while left > borders[0] and self.line.im[v_ind, left] == 0:
left -= 1
if left < borders[0] or borders[1] < right:
return None
return left + 1, right
def _find_horizontal_line_space(self, v_ind, prev_space, borders):
"""find left and right border of horizontal space in given line (v_ind)
if there is several of them"""
zeros = sspace._find_zeros(
self.line.im[v_ind, range(prev_space[0], prev_space[1])])
if len(zeros) > 1:
print("Expected 0 or 1 spaces at next line, but got %s" %
[(z[0] + prev_space[0], z[1] + prev_space[0])
for z in zeros])
max_length = 0
zero = [0, 0]
for z in zeros:
if z[1] - z[0] > max_length:
zero = z
elif len(zeros) == 1:
zero = zeros[0]
else:
return None
right = zero[1] + prev_space[0]
while right < borders[1] and self.line.im[v_ind, right] == 0:
right += 1
left = zero[0] + prev_space[0]
while left > borders[0] and self.line.im[v_ind, left] == 0:
left -= 1
if left < borders[0] or borders[1] < right:
return None
return left + 1, right
def _find_vertical_space(self, horizontal, vertical):
"""find vertical space borders in given zone"""
sub_zone = self.line.absoluteZone(horizontal, vertical).extract()
spaces = sspace._find_zeros(np.sum(sub_zone, 0))
if spaces is None or len(spaces) == 0:
return None
space = spaces[-1]
return space[0] + horizontal[0], space[1] + horizontal[0]
def _find_vertical_space(self, horizontal, vertical):
"""find vertical space borders in given zone"""
sub_zone = self.line.absoluteZone(horizontal, vertical).extract()
spaces = sspace._find_zeros(np.sum(sub_zone, 0))
if spaces is None or len(spaces) == 0:
return None
space = spaces[-1]
return space[0] + horizontal[0], space[1] + horizontal[0]
