def guide_sort_key (self) :
"""
s1 s1
+--+ +--+ +---+ +--+ +--+
0 |4 | |5 | |6 | |7 | |8 | 0
++-+ +-++ +-+-+ ++-+ +-++
| | | | |
| +-------+ | +------+ |
+--+ +------------+| | |+-----------+ +--+
-1 |3 +----------------+|| | ||+--------------+9 | 1
+--+ +----------+||| | |||+----------+ +--+
| +---+|||| | ||||+---+ |
++-+ +-++ ++++++-+-++++++ ++-+ +-++
-2 |2 | |1 | | | |11| |10| 2
+--+ +--+ +-------------+ +--+ +--+
"""
points = self.points
p0 = points [ 0].free
q = points [-1].free
p0_q = p0 - q
side = self.connector.side
p0_q_y = getattr (p0_q, side.dim)
p0_q_x = getattr (p0_q, side.other_dim)
s1 = 0
if self.other_connector.side.side == side.side :
s1 = sign (p0_q_x) * side.sort_sign * 2
elif self.other_connector.side.dim != side.dim :
s1 = sign (p0_q_x) * side.sort_sign
s2 = - sign (s1) * p0_q_x
result = (s1, s2, p0_q_x * side.sort_sign)
return result
def _directions(self):
v_map = self.value_map
x, y = tuple(self)
sx = sign(x)
sy = sign(y)
ax = abs(x)
ay = abs(y)
if ax == ay:
if ax:
yield (v_map[sx, sy], ax)
else:
yield ("(0,0)", 1)
else:
if ax:
yield (v_map[sx, 0], ax)
if ay:
yield (v_map[0, sy], ay)
def _directions (self) :
v_map = self.value_map
x, y = tuple (self)
sx = sign (x)
sy = sign (y)
ax = abs (x)
ay = abs (y)
if ax == ay :
if ax :
yield (v_map [sx, sy], ax)
else :
yield ("(0,0)", 1)
else :
if ax :
yield (v_map [sx, 0], ax)
if ay :
yield (v_map [ 0, sy], ay)
def improve_connectors(self):
map = mm_list()
for r in self.rels:
if len(r.points) > 3:
p = r.points[-2]
key = \
( sign (getattr (r.delta, self.other_dim))
, getattr (p, self.dim)
)
map[key].append(r)
for k, rs in pyk.iteritems(map):
step = k[0] * self.sort_sign
if len(rs) > 1:
for i, r in enumerate(rs[1::step]):
r.shift_guide(i + 1)
def unit_changes(after, before, str_dates, unit, offset=0, limit=5):
"""Yield all elements of `str_dates` closest to `unit` changes."""
map = mm_list()
for d, sd in in_range(after, before, str_dates):
p1, p2 = d.periods[unit]
if offset:
p1 += offset
p2 += offset
p = p1 if (d - p1 < (p2 - p1) // 2) else (p2 + 1)
delta = (d - p).days
a_delta = abs(delta)
if a_delta <= limit:
map[p].append((a_delta, -sign(delta), sd))
result = list(min(v)[-1] for v in pyk.itervalues(map))
return sorted(result)
def unit_changes (after, before, str_dates, unit, offset = 0, limit = 5) :
"""Yield all elements of `str_dates` closest to `unit` changes."""
map = mm_list ()
for d, sd in in_range (after, before, str_dates) :
p1, p2 = d.periods [unit]
if offset :
p1 += offset
p2 += offset
p = p1 if (d - p1 < (p2 - p1) // 2) else (p2 + 1)
delta = (d - p).days
a_delta = abs (delta)
if a_delta <= limit :
map [p].append ((a_delta, - sign (delta), sd))
result = list (min (v) [-1] for v in pyk.itervalues (map))
return sorted (result)
def improve_connectors (self) :
map = mm_list ()
for r in self.rels :
if len (r.points) > 3 :
p = r.points [-2]
key = \
( sign (getattr (r.delta, self.other_dim))
, getattr (p, self.dim)
)
map [key].append (r)
for k, rs in pyk.iteritems (map) :
step = k [0] * self.sort_sign
if len (rs) > 1 :
for i, r in enumerate (rs [1::step]) :
r.shift_guide (i + 1)