def find_neighbors_with_rsrcmgr(
self, plane: Plane, ratio: float,
rsrcmgr: PaperResourceManager) -> List[Union[LTItem, LTText]]:
d = ratio * self.height
objs = plane.find((self.x0, self.y0 - d, self.x1, self.y1 + d))
classification = self.maybe_classify(rsrcmgr)
return [
obj for obj in objs
if (isinstance(obj, LTTextLineHorizontalExtended)
and classification == obj.maybe_classify(rsrcmgr) and
((abs(obj.height - self.height) < d and self.is_font_similar(
obj) and self.is_x_similar(obj, d)) or classification in
[LTAuthor, LTPageMargin, LTCitationBox, LTFooter]))
]
def __init__(self, mentions, lines, region, min_cell_size=6.0):
"""
Constructor
"""
self.min_cell_size = min_cell_size
vlines, hlines = _split_vlines_hlines(lines)
self.xs = [v.xc for v in vlines]
self.ys = [h.yc for h in hlines]
# Remove closely clustered lines
# Also make sure there is at least 1 mega column for the table
self.xs = _retain_centroids(self.xs + [region.x0, region.x1],
min_cell_size)
self.ys = _retain_centroids(self.ys + [region.y0, region.y1],
min_cell_size)
self.xranges = list(zip(self.xs, self.xs[1:]))
self.yranges = list(zip(self.ys, self.ys[1:]))
self.num_cols = len(self.xranges)
self.num_rows = len(self.yranges)
# Grid contents
self._grid = np.full([self.num_rows, self.num_cols],
None,
dtype=np.dtype(object))
grid = self._grid
# Record whether a particular cell boundary is present
line_plane = Plane(region.bbox)
line_plane.extend(lines)
vbars, hbars = self._mark_grid_bounds(line_plane, region)
cells = []
# Establish cell regions
for i in range(self.num_rows):
for j in range(self.num_cols):
if grid[i, j]:
continue # Skip already marked cells
# Merge with cell above
if i > 0 and not hbars[i, j]:
grid[i, j] = cell = grid[i - 1, j]
cell.rowend = i + 1
# Merge with cell left
elif j > 0 and not vbars[i, j]:
grid[i, j] = cell = grid[i, j - 1]
cell.colend = j + 1
# Create new cell otherwise
else:
grid[i, j] = cell = Cell([i, j])
cells.append(cell)
# Now get the cell's contents by using its boundary
text_plane = Plane(region.bbox)
text_plane.extend(mentions)
for cell in cells:
x0 = self.xs[cell.colstart]
x1 = self.xs[cell.colend]
y0 = self.ys[cell.rowstart]
y1 = self.ys[cell.rowend]
bbox = (x0, y0, x1, y1)
# Keep mentions whose centers are inside the cell
cell.texts = [
m for m in text_plane.find(bbox)
if inside(bbox, (m.xc, m.yc) * 2)
]
# TODO: provide HTML conversion here
self.get_normalized_grid()
class Sheet1 (object):
cells = None
text_layout = None
column_edges = None
row_edges = None
def __init__(self):
self.cells = Plane()
self.text_layout = Plane()
self.row_edges = {}
self.column_edges = {}
def add_cell (self, cell):
self.cells.add(cell)
def add_text (self, cell_text):
self.text_layout.add(cell_text)
# if cell_text.text[:3] == 'Oil': print cell_text.text, cell_text.bbox
def add_column_edge (self, x_value):
x = round(x_value,2)
self.column_edges[x] = 1+ self.column_edges.get(x,0)
def add_row_edge (self, y_value):
y = round(y_value,2)
self.row_edges[y] = 1+ self.row_edges.get(y,0)
def add_line (self, bbox):
if bbox[0]==bbox[2]:
# vertical line
self.add_column_edge(bbox[0])
elif bbox[1]==bbox[3]:
#horizontal line
self.add_row_edge(bbox[1])
else:
print ('WARNING: non-orthogonal line found: %s'%bbox)
def add_rect (self, bbox):
self.add_column_edge(bbox[0])
self.add_column_edge(bbox[2])
self.add_row_edge(bbox[1])
self.add_row_edge(bbox[3])
def add_ltcontainer (self, obj, page_y_offset):
#NB: row indexes (y axis) are negative!
bbox = (
round(obj.x0,2),
round(-(obj.y1+page_y_offset),2),
round(obj.x1,2),
round(-(obj.y0+page_y_offset),2)
)
if isinstance (obj, LTTextLine):
self.add_text (CellText(bbox, obj.get_text()))
elif isinstance (obj, LTLine):
self.add_line(bbox)
elif isinstance (obj, LTRect):
self.add_rect(bbox)
elif isinstance (obj, LTContainer):
for child in obj:
self.add_ltcontainer (child, page_y_offset)
else:
pass
def extract_rows (self):
# for obj in self.text_layout.find((690, -1200, 800, -1000)):
# print obj.bbox,obj.text
row_bounds = sorted(self.row_edges)
col_bounds = sorted(self.column_edges)
# pprint.pprint(col_bounds)
rows = []
r0 = row_bounds[0] - 1 if row_bounds else 0
#NB: row indexes (y axis) are negative!
for r1 in row_bounds:
if r1 - r0 < 1: continue
# print r1-r0,r0,r1
row=[]
c0 = 0
for c1 in col_bounds:
if c1 - c0 < 1: continue
# print c0,r0,c1,r1
# get all text lines that intersect the bounds of this cell
lines = [l for l in self.text_layout.find((c0,r0,c1,r1))]
#sort from top to bottom
lines = sorted(lines, key=lambda line: line.y0)
# text = ' '.join([t.text.strip() for t in lines if t.x0 >= c0 and t.x0 <= c1])
# if text[:10] == 'Production': print text,c0,r0,c1,r1
# if text[:3] == 'Oil': print text,c0,r0,c1,r1
# remove anything where the left edge is not inside the cell and concatenate the rest
row.append(' '.join([t.text.strip() for t in lines if t.x0 >= c0 and t.x0 <= c1]))
c0 = c1
rows.append(row)
r0 = r1
return rows