layout analysis improvement 1
git-svn-id: https://pdfminerr.googlecode.com/svn/trunk/pdfminer@244 1aa58f4a-7d42-0410-adbc-911cccaed67cpull/1/head
yusuke.shinyama.dummy
parent
3b2aabaa10
commit
bc1303e901
|
|
@ -10,7 +10,7 @@ from pdffont import PDFUnicodeNotDefined
|
|||
## get_bounds
|
||||
##
|
||||
def get_bounds(pts):
|
||||
"""Compute a maximal rectangle that covers all the points."""
|
||||
"""Compute a minimal rectangle that covers all the points."""
|
||||
(x0, y0, x1, y1) = (INF, INF, -INF, -INF)
|
||||
for (x,y) in pts:
|
||||
x0 = min(x0, x)
|
||||
|
|
@ -31,12 +31,6 @@ def csort(objs, key):
|
|||
idxs = dict( (obj,i) for (i,obj) in enumerate(objs) )
|
||||
return sorted(objs, key=lambda obj:(key(obj), idxs[obj]))
|
||||
|
||||
def is_uniq(objs):
|
||||
for (i,obj1) in enumerate(objs):
|
||||
for obj2 in objs[i+1:]:
|
||||
if obj1 == obj2: return False
|
||||
return True
|
||||
|
||||
|
||||
## LAParams
|
||||
##
|
||||
|
|
@ -127,9 +121,9 @@ class LTItem(object):
|
|||
class LTPolygon(LTItem):
|
||||
|
||||
def __init__(self, linewidth, pts):
|
||||
LTItem.__init__(self, get_bounds(pts))
|
||||
self.pts = pts
|
||||
self.linewidth = linewidth
|
||||
LTItem.__init__(self, get_bounds(pts))
|
||||
return
|
||||
|
||||
def get_pts(self):
|
||||
|
|
@ -265,36 +259,39 @@ class LTChar(LTItem, LTText):
|
|||
##
|
||||
class LTContainer(LTItem):
|
||||
|
||||
def __init__(self, bbox, objs=None):
|
||||
def __init__(self, objs=None, bbox=(0,0,0,0)):
|
||||
LTItem.__init__(self, bbox)
|
||||
if objs:
|
||||
self.objs = objs[:]
|
||||
self._objs = objs[:]
|
||||
else:
|
||||
self.objs = []
|
||||
self._objs = []
|
||||
return
|
||||
|
||||
def __repr__(self):
|
||||
return ('<container %s>' % bbox2str(self.bbox))
|
||||
|
||||
def __iter__(self):
|
||||
return iter(self.objs)
|
||||
return iter(self.get_objs())
|
||||
|
||||
def __len__(self):
|
||||
return len(self.objs)
|
||||
return len(self.get_objs())
|
||||
|
||||
def add(self, obj):
|
||||
self.objs.append(obj)
|
||||
self._objs.append(obj)
|
||||
return
|
||||
|
||||
def merge(self, container):
|
||||
self.objs.extend(container.objs)
|
||||
self._objs.extend(container._objs)
|
||||
return
|
||||
|
||||
def get_objs(self):
|
||||
return self._objs
|
||||
|
||||
# fixate(): determines its boundery.
|
||||
def fixate(self):
|
||||
if not self.width and self.objs:
|
||||
if not self.width and self._objs:
|
||||
(bx0, by0, bx1, by1) = (INF, INF, -INF, -INF)
|
||||
for obj in self.objs:
|
||||
for obj in self._objs:
|
||||
bx0 = min(bx0, obj.x0)
|
||||
by0 = min(by0, obj.y0)
|
||||
bx1 = max(bx1, obj.x1)
|
||||
|
|
@ -307,60 +304,63 @@ class LTContainer(LTItem):
|
|||
##
|
||||
class LTTextLine(LTContainer):
|
||||
|
||||
def __init__(self, objs):
|
||||
LTContainer.__init__(self, (0,0,0,0), objs)
|
||||
def __init__(self, word_margin=0):
|
||||
self.word_margin = word_margin
|
||||
LTContainer.__init__(self)
|
||||
return
|
||||
|
||||
def __repr__(self):
|
||||
return ('<textline %s>' % bbox2str(self.bbox))
|
||||
|
||||
def get_text(self):
|
||||
return ''.join( obj.text for obj in self.objs if isinstance(obj, LTText) )
|
||||
return ''.join( obj.text for obj in self.get_objs() if isinstance(obj, LTText) )
|
||||
|
||||
def find_neighbors(self, plane, ratio):
|
||||
raise NotImplementedError
|
||||
|
||||
class LTTextLineHorizontal(LTTextLine):
|
||||
|
||||
def __init__(self, objs, word_margin):
|
||||
LTTextLine.__init__(self, objs)
|
||||
LTContainer.fixate(self)
|
||||
objs = []
|
||||
def __repr__(self):
|
||||
return ('<textline-h %s>' % bbox2str(self.bbox))
|
||||
|
||||
def get_objs(self):
|
||||
x1 = INF
|
||||
for obj in csort(self.objs, key=lambda obj: obj.x0):
|
||||
if isinstance(obj, LTChar) and word_margin:
|
||||
margin = word_margin * obj.width
|
||||
for obj in csort(self._objs, key=lambda obj: obj.x0):
|
||||
if isinstance(obj, LTChar) and self.word_margin:
|
||||
margin = self.word_margin * obj.width
|
||||
if x1 < obj.x0-margin:
|
||||
objs.append(LTAnon(' '))
|
||||
objs.append(obj)
|
||||
yield LTAnon(' ')
|
||||
yield obj
|
||||
x1 = obj.x1
|
||||
self.objs = objs + [LTAnon('\n')]
|
||||
yield LTAnon('\n')
|
||||
return
|
||||
|
||||
def find_neighbors(self, plane, ratio):
|
||||
h = ratio*self.height
|
||||
return plane.find((self.x0, self.y0-h, self.x1, self.y1+h))
|
||||
objs = plane.find((self.x0, self.y0-h, self.x1, self.y1+h))
|
||||
return [ obj for obj in objs if isinstance(obj, LTTextLineHorizontal) ]
|
||||
|
||||
class LTTextLineVertical(LTTextLine):
|
||||
|
||||
def __init__(self, objs, word_margin):
|
||||
LTTextLine.__init__(self, objs)
|
||||
LTContainer.fixate(self)
|
||||
objs = []
|
||||
def __repr__(self):
|
||||
return ('<textline-v %s>' % bbox2str(self.bbox))
|
||||
|
||||
def get_objs(self):
|
||||
y0 = -INF
|
||||
for obj in csort(self.objs, key=lambda obj: -obj.y1):
|
||||
if isinstance(obj, LTChar) and word_margin:
|
||||
margin = word_margin * obj.height
|
||||
for obj in csort(self._objs, key=lambda obj: -obj.y1):
|
||||
if isinstance(obj, LTChar) and self.word_margin:
|
||||
margin = self.word_margin * obj.height
|
||||
if obj.y1+margin < y0:
|
||||
objs.append(LTAnon(' '))
|
||||
objs.append(obj)
|
||||
yield LTAnon(' ')
|
||||
yield obj
|
||||
y0 = obj.y0
|
||||
self.objs = objs + [LTAnon('\n')]
|
||||
yield LTAnon('\n')
|
||||
return
|
||||
|
||||
def find_neighbors(self, plane, ratio):
|
||||
w = ratio*self.width
|
||||
return plane.find((self.x0-w, self.y0, self.x1+w, self.y1))
|
||||
objs = plane.find((self.x0-w, self.y0, self.x1+w, self.y1))
|
||||
return [ obj for obj in objs if isinstance(obj, LTTextLineVertical) ]
|
||||
|
||||
|
||||
## LTTextBox
|
||||
|
|
@ -371,7 +371,7 @@ class LTTextLineVertical(LTTextLine):
|
|||
class LTTextBox(LTContainer):
|
||||
|
||||
def __init__(self, objs):
|
||||
LTContainer.__init__(self, (0,0,0,0), objs)
|
||||
LTContainer.__init__(self, objs=objs)
|
||||
self.index = None
|
||||
return
|
||||
|
||||
|
|
@ -379,21 +379,17 @@ class LTTextBox(LTContainer):
|
|||
return ('<textbox(%s) %s %r...>' % (self.index, bbox2str(self.bbox), self.get_text()[:20]))
|
||||
|
||||
def get_text(self):
|
||||
return ''.join( obj.get_text() for obj in self.objs if isinstance(obj, LTTextLine) )
|
||||
return ''.join( obj.get_text() for obj in self.get_objs() if isinstance(obj, LTTextLine) )
|
||||
|
||||
class LTTextBoxHorizontal(LTTextBox):
|
||||
|
||||
def fixate(self):
|
||||
LTTextBox.fixate(self)
|
||||
self.objs = csort(self.objs, key=lambda obj: -obj.y1)
|
||||
return
|
||||
def get_objs(self):
|
||||
return csort(self._objs, key=lambda obj: -obj.y1)
|
||||
|
||||
class LTTextBoxVertical(LTTextBox):
|
||||
|
||||
def fixate(self):
|
||||
LTTextBox.fixate(self)
|
||||
self.objs = csort(self.objs, key=lambda obj: -obj.x1)
|
||||
return
|
||||
def get_objs(self):
|
||||
return csort(self._objs, key=lambda obj: -obj.x1)
|
||||
|
||||
|
||||
## LTTextGroup
|
||||
|
|
@ -401,26 +397,21 @@ class LTTextBoxVertical(LTTextBox):
|
|||
class LTTextGroup(LTContainer):
|
||||
|
||||
def __init__(self, objs):
|
||||
assert objs
|
||||
LTContainer.__init__(self, (0,0,0,0), objs)
|
||||
LTContainer.__init__(self, objs=objs)
|
||||
LTContainer.fixate(self)
|
||||
return
|
||||
|
||||
class LTTextGroupLRTB(LTTextGroup):
|
||||
|
||||
def __init__(self, objs):
|
||||
LTTextGroup.__init__(self, objs)
|
||||
def get_objs(self):
|
||||
# reorder the objects from top-left to bottom-right.
|
||||
self.objs = csort(self.objs, key=lambda obj: obj.x0+obj.x1-(obj.y0+obj.y1))
|
||||
return
|
||||
return csort(self._objs, key=lambda obj: obj.x0+obj.x1-(obj.y0+obj.y1))
|
||||
|
||||
class LTTextGroupTBRL(LTTextGroup):
|
||||
|
||||
def __init__(self, objs):
|
||||
LTTextGroup.__init__(self, objs)
|
||||
def get_objs(self):
|
||||
# reorder the objects from top-right to bottom-left.
|
||||
self.objs = csort(self.objs, key=lambda obj: -(obj.x0+obj.x1)-(obj.y0+obj.y1))
|
||||
return
|
||||
return csort(self._objs, key=lambda obj: -(obj.x0+obj.x1)-(obj.y0+obj.y1))
|
||||
|
||||
|
||||
## Plane
|
||||
|
|
@ -463,121 +454,22 @@ class Plane(object):
|
|||
return sorted(xobjs, key=lambda obj: self.idxs[obj])
|
||||
|
||||
|
||||
## guess_wmode
|
||||
##
|
||||
def guess_wmode(objs):
|
||||
"""Guess the writing mode by looking at the order of text objects."""
|
||||
xy = tb = lr = 0
|
||||
obj0 = None
|
||||
for obj1 in objs:
|
||||
if obj0 is not None:
|
||||
dx = obj1.x0+obj1.x1-(obj0.x0+obj0.x1)
|
||||
dy = obj1.y0+obj1.y1-(obj0.y0+obj0.y1)
|
||||
if abs(dy) < abs(dx):
|
||||
xy += 1
|
||||
else:
|
||||
xy -= 1
|
||||
if 0 < dx:
|
||||
lr += 1
|
||||
else:
|
||||
lr -= 1
|
||||
if dy < 0:
|
||||
tb += 1
|
||||
else:
|
||||
tb -= 1
|
||||
obj0 = obj1
|
||||
if 0 < lr:
|
||||
lr = 'lr'
|
||||
else:
|
||||
lr = 'rl'
|
||||
if 0 < tb:
|
||||
tb = 'tb'
|
||||
else:
|
||||
tb = 'bt'
|
||||
if 0 < xy:
|
||||
return lr+'-'+tb
|
||||
else:
|
||||
return tb+'-'+lr
|
||||
|
||||
|
||||
## group_lines
|
||||
##
|
||||
def group_lines(groupfunc, objs, findfunc, debug=0):
|
||||
"""Group LTTextLine objects to form a LTTextBox."""
|
||||
plane = Plane(objs)
|
||||
groups = {}
|
||||
for obj in objs:
|
||||
neighbors = findfunc(obj, plane)
|
||||
assert obj in neighbors, obj
|
||||
members = neighbors[:]
|
||||
for obj1 in neighbors:
|
||||
if obj1 in groups:
|
||||
members.extend(groups.pop(obj1))
|
||||
if debug:
|
||||
print >>sys.stderr, 'group:', members
|
||||
group = groupfunc(list(uniq(members)))
|
||||
for obj in members:
|
||||
groups[obj] = group
|
||||
done = set()
|
||||
r = []
|
||||
for obj in objs:
|
||||
group = groups[obj]
|
||||
if group in done: continue
|
||||
done.add(group)
|
||||
group.fixate()
|
||||
r.append(group)
|
||||
return r
|
||||
|
||||
|
||||
## group_boxes
|
||||
##
|
||||
def group_boxes(groupfunc, objs0, distfunc, debug=0):
|
||||
assert objs0
|
||||
objs = objs0[:]
|
||||
while 2 <= len(objs):
|
||||
mindist = INF
|
||||
minpair = None
|
||||
objs = csort(objs, key=lambda obj: obj.width*obj.height)
|
||||
for i in xrange(len(objs)):
|
||||
for j in xrange(i+1, len(objs)):
|
||||
d = distfunc(objs[i], objs[j])
|
||||
if d < mindist:
|
||||
mindist = d
|
||||
minpair = (objs[i], objs[j])
|
||||
assert minpair
|
||||
(obj1, obj2) = minpair
|
||||
objs.remove(obj1)
|
||||
objs.remove(obj2)
|
||||
if debug:
|
||||
print >>sys.stderr, 'group:', obj1, obj2
|
||||
objs.append(groupfunc([obj1, obj2]))
|
||||
assert len(objs) == 1
|
||||
return objs.pop()
|
||||
|
||||
|
||||
## LTAnalyzer
|
||||
##
|
||||
class LTAnalyzer(LTContainer):
|
||||
|
||||
def analyze(self, laparams):
|
||||
def analyze(self, laparams=None):
|
||||
"""Perform the layout analysis."""
|
||||
(textobjs, otherobjs) = self.get_textobjs()
|
||||
if laparams is None: return
|
||||
# textobjs is a list of LTChar objects, i.e.
|
||||
# it has all the individual characters in the page.
|
||||
if not laparams or not textobjs: return
|
||||
if laparams.writing_mode not in ('lr-tb', 'tb-rl'):
|
||||
laparams.writing_mode = guess_wmode(textobjs)
|
||||
if (laparams.writing_mode.startswith('tb-') or
|
||||
laparams.writing_mode.startswith('bt-')):
|
||||
# assemble them into vertical rows of text.
|
||||
textboxes = self.build_textbox_vertical(textobjs, laparams)
|
||||
# turn them into a tree.
|
||||
top = self.group_textbox_tb_rl(textboxes, laparams)
|
||||
else:
|
||||
# assemble them into horizontal rows of text.
|
||||
textboxes = self.build_textbox_horizontal(textobjs, laparams)
|
||||
# turn them into a tree.
|
||||
top = self.group_textbox_lr_tb(textboxes, laparams)
|
||||
(textobjs, otherobjs) = self.get_textobjs(self._objs, laparams)
|
||||
if not textobjs: return
|
||||
textlines = list(self.get_textlines(textobjs, laparams))
|
||||
assert sum( len(line._objs) for line in textlines ) == len(textobjs)
|
||||
textboxes = list(self.get_textboxes(textlines, laparams))
|
||||
assert sum( len(box._objs) for box in textboxes ) == len(textlines)
|
||||
top = self.group_textboxes(textboxes, laparams)
|
||||
def assign_index(obj, i):
|
||||
if isinstance(obj, LTTextBox):
|
||||
obj.index = i
|
||||
|
|
@ -588,82 +480,111 @@ class LTAnalyzer(LTContainer):
|
|||
return i
|
||||
assign_index(top, 0)
|
||||
textboxes.sort(key=lambda box:box.index)
|
||||
self.objs = textboxes + otherobjs
|
||||
self._objs = textboxes + otherobjs
|
||||
self.layout = top
|
||||
return
|
||||
|
||||
def get_textobjs(self):
|
||||
def get_textobjs(self, objs, laparams):
|
||||
"""Split all the objects in the page into text-related objects and others."""
|
||||
textobjs = []
|
||||
otherobjs = []
|
||||
for obj in self.objs:
|
||||
for obj in objs:
|
||||
if isinstance(obj, LTText) and obj.is_upright():
|
||||
textobjs.append(obj)
|
||||
else:
|
||||
otherobjs.append(obj)
|
||||
return (textobjs, otherobjs)
|
||||
|
||||
def build_textbox_horizontal(self, objs, laparams):
|
||||
"""Identify horizontal text regions in the page."""
|
||||
def aligned(obj1, obj2):
|
||||
# +------+ - - -
|
||||
# | obj1 | - - +------+ -
|
||||
# | | | obj2 | | (line_overlap)
|
||||
# +------+ - - | | -
|
||||
# - - - +------+
|
||||
#
|
||||
# |<--->|
|
||||
# (char_margin)
|
||||
return ((min(obj1.height, obj2.height) * laparams.line_overlap < obj1.voverlap(obj2)) and
|
||||
(obj1.hdistance(obj2) < min(obj1.width, obj2.width) * laparams.char_margin))
|
||||
lines = []
|
||||
line = []
|
||||
prev = None
|
||||
for cur in objs:
|
||||
if prev is not None and not aligned(prev, cur):
|
||||
if line:
|
||||
lines.append(LTTextLineHorizontal(line, laparams.word_margin))
|
||||
line = []
|
||||
line.append(cur)
|
||||
prev = cur
|
||||
if line:
|
||||
lines.append(LTTextLineHorizontal(line, laparams.word_margin))
|
||||
return group_lines(LTTextBoxHorizontal, lines,
|
||||
lambda obj, plane: obj.find_neighbors(plane, laparams.line_margin))
|
||||
def get_textlines(self, objs, laparams):
|
||||
obj0 = None
|
||||
line = None
|
||||
for obj1 in objs:
|
||||
if obj0 is None:
|
||||
obj0 = obj1
|
||||
else:
|
||||
k = 0
|
||||
if (obj0.is_voverlap(obj1) and
|
||||
min(obj0.height, obj1.height) * laparams.line_overlap < obj0.voverlap(obj1) and
|
||||
obj0.hdistance(obj1) < min(obj0.width, obj1.width) * laparams.char_margin):
|
||||
# obj0 and obj1 is horizontally aligned:
|
||||
#
|
||||
# +------+ - - -
|
||||
# | obj0 | - - +------+ -
|
||||
# | | | obj1 | | (line_overlap)
|
||||
# +------+ - - | | -
|
||||
# - - - +------+
|
||||
#
|
||||
# |<--->|
|
||||
# (char_margin)
|
||||
k |= 1
|
||||
if (obj0.is_hoverlap(obj1) and
|
||||
min(obj0.width, obj1.width) * laparams.line_overlap < obj0.hoverlap(obj1) and
|
||||
obj0.vdistance(obj1) < min(obj0.height, obj1.height) * laparams.char_margin):
|
||||
# obj0 and obj1 is vertically aligned:
|
||||
#
|
||||
# +------+
|
||||
# | obj0 |
|
||||
# | |
|
||||
# +------+ - - -
|
||||
# | | | (char_margin)
|
||||
# +------+ - -
|
||||
# | obj1 |
|
||||
# | |
|
||||
# +------+
|
||||
#
|
||||
# |<-->|
|
||||
# (line_overlap)
|
||||
k |= 2
|
||||
if ( (k & 1 and isinstance(line, LTTextLineHorizontal)) or
|
||||
(k & 2 and isinstance(line, LTTextLineVertical)) ):
|
||||
line.add(obj1)
|
||||
elif line is None:
|
||||
if k == 2:
|
||||
line = LTTextLineVertical(laparams.word_margin)
|
||||
else:
|
||||
line = LTTextLineHorizontal(laparams.word_margin)
|
||||
line.add(obj0)
|
||||
line.add(obj1)
|
||||
else:
|
||||
line.fixate()
|
||||
yield line
|
||||
line = None
|
||||
obj0 = obj1
|
||||
if line is None:
|
||||
line = LTTextLineHorizontal(laparams.word_margin)
|
||||
if obj0 is not None:
|
||||
line.add(obj0)
|
||||
line.fixate()
|
||||
yield line
|
||||
return
|
||||
|
||||
def build_textbox_vertical(self, objs, laparams):
|
||||
"""Identify vertical text regions in the page."""
|
||||
def aligned(obj1, obj2):
|
||||
# +------+
|
||||
# | obj1 |
|
||||
# | |
|
||||
# +------+ - - -
|
||||
# | | | (char_margin)
|
||||
# +------+ - -
|
||||
# | obj2 |
|
||||
# | |
|
||||
# +------+
|
||||
#
|
||||
# |<-->|
|
||||
# (line_overlap)
|
||||
return ((min(obj1.width, obj2.width) * laparams.line_overlap < obj1.hoverlap(obj2)) and
|
||||
(obj1.vdistance(obj2) < min(obj1.height, obj2.height) * laparams.char_margin))
|
||||
lines = []
|
||||
line = []
|
||||
prev = None
|
||||
for cur in objs:
|
||||
if prev is not None and not aligned(prev, cur):
|
||||
if line:
|
||||
lines.append(LTTextLineVertical(line, laparams.word_margin))
|
||||
line = []
|
||||
line.append(cur)
|
||||
prev = cur
|
||||
if line:
|
||||
lines.append(LTTextLineVertical(line, laparams.word_margin))
|
||||
return group_lines(LTTextBoxVertical, lines,
|
||||
lambda obj, plane: obj.find_neighbors(plane, laparams.line_margin))
|
||||
def get_textboxes(self, lines, laparams):
|
||||
plane = Plane(lines)
|
||||
groups = {}
|
||||
for line in lines:
|
||||
neighbors = line.find_neighbors(plane, laparams.line_margin)
|
||||
assert line in neighbors, line
|
||||
members = neighbors[:]
|
||||
for obj1 in neighbors:
|
||||
if obj1 in groups:
|
||||
members.extend(groups.pop(obj1))
|
||||
members = list(uniq(members))
|
||||
if isinstance(line, LTTextLineHorizontal):
|
||||
group = LTTextBoxHorizontal(members)
|
||||
else:
|
||||
group = LTTextBoxVertical(members)
|
||||
for obj in members:
|
||||
groups[obj] = group
|
||||
done = set()
|
||||
for line in lines:
|
||||
group = groups[line]
|
||||
if group in done: continue
|
||||
done.add(group)
|
||||
group.fixate()
|
||||
yield group
|
||||
return
|
||||
|
||||
def group_textbox_lr_tb(self, boxes, laparams):
|
||||
def group_textboxes(self, textboxes, laparams):
|
||||
def dist(obj1, obj2):
|
||||
"""A distance function between two TextBoxes.
|
||||
|
||||
|
|
@ -679,14 +600,29 @@ class LTAnalyzer(LTContainer):
|
|||
return ((max(obj1.x1,obj2.x1) - min(obj1.x0,obj2.x0)) *
|
||||
(max(obj1.y1,obj2.y1) - min(obj1.y0,obj2.y0)) -
|
||||
(obj1.width*obj1.height + obj2.width*obj2.height))
|
||||
return group_boxes(LTTextGroupLRTB, boxes, dist)
|
||||
|
||||
def group_textbox_tb_rl(self, boxes, laparams):
|
||||
def dist(obj1, obj2):
|
||||
return ((max(obj1.x1,obj2.x1) - min(obj1.x0,obj2.x0)) *
|
||||
(max(obj1.y1,obj2.y1) - min(obj1.y0,obj2.y0)) -
|
||||
(obj1.width*obj1.height + obj2.width*obj2.height))
|
||||
return group_boxes(LTTextGroupTBRL, boxes, dist)
|
||||
textboxes = textboxes[:]
|
||||
while 2 <= len(textboxes):
|
||||
mindist = INF
|
||||
minpair = None
|
||||
textboxes = csort(textboxes, key=lambda obj: obj.width*obj.height)
|
||||
for i in xrange(len(textboxes)):
|
||||
for j in xrange(i+1, len(textboxes)):
|
||||
(obj1, obj2) = (textboxes[i], textboxes[j])
|
||||
d = dist(obj1, obj2)
|
||||
if d < mindist:
|
||||
mindist = d
|
||||
minpair = (obj1, obj2)
|
||||
assert minpair
|
||||
(obj1, obj2) = minpair
|
||||
textboxes.remove(obj1)
|
||||
textboxes.remove(obj2)
|
||||
if isinstance(obj1, LTTextBoxHorizontal):
|
||||
group = LTTextGroupLRTB([obj1, obj2])
|
||||
else:
|
||||
group = LTTextGroupTBRL([obj1, obj2])
|
||||
textboxes.append(group)
|
||||
assert len(textboxes) == 1
|
||||
return textboxes.pop()
|
||||
|
||||
|
||||
## LTFigure
|
||||
|
|
@ -699,16 +635,16 @@ class LTFigure(LTAnalyzer):
|
|||
(x,y,w,h) = bbox
|
||||
bbox = get_bounds( apply_matrix_pt(matrix, (p,q))
|
||||
for (p,q) in ((x,y), (x+w,y), (x,y+h), (x+w,y+h)) )
|
||||
LTAnalyzer.__init__(self, bbox)
|
||||
LTAnalyzer.__init__(self, bbox=bbox)
|
||||
return
|
||||
|
||||
def __repr__(self):
|
||||
return ('<figure %r bbox=%s matrix=%s>' %
|
||||
(self.name, bbox2str(self.bbox), matrix2str(self.matrix)))
|
||||
|
||||
def analyze(self, laparams):
|
||||
if laparams and laparams.all_texts:
|
||||
LTAnalyzer.analyze(self, laparams)
|
||||
def analyze(self, laparams=None):
|
||||
if laparams is not None and laparams.all_texts:
|
||||
LTAnalyzer.analyze(self, laparams=laparams)
|
||||
return
|
||||
|
||||
|
||||
|
|
@ -717,7 +653,7 @@ class LTFigure(LTAnalyzer):
|
|||
class LTPage(LTAnalyzer):
|
||||
|
||||
def __init__(self, pageid, bbox, rotate=0):
|
||||
LTAnalyzer.__init__(self, bbox)
|
||||
LTAnalyzer.__init__(self, bbox=bbox)
|
||||
self.pageid = pageid
|
||||
self.rotate = rotate
|
||||
self.layout = None
|
||||
|
|
|
|||
Loading…
Reference in New Issue