def get_morton_curve():
chain_code = 'i','Ij','i'
bases = ['ij'] * 4
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def bauman():
proto = ((0, 0), (0, 1), (0, 2), (1, 2), (1, 1), (1, 0), (2, 0), (2, 1),
(2, 2))
base_maps = [
BaseMap(perm=[1, 0], flip=[False, False]),
BaseMap(perm=[1, 0], flip=[True, False]),
BaseMap.id_map(dim=2),
BaseMap(perm=[1, 0], flip=[False, True]),
BaseMap(perm=[1, 0], flip=[True, True]),
BaseMap(perm=[0, 1], flip=[False, True]),
BaseMap(perm=[1, 0], flip=[False, False]),
BaseMap(perm=[1, 0], flip=[True, False]),
BaseMap.id_map(dim=2),
]
bauman = FractalCurve(dim=2, div=3, proto=proto, base_maps=base_maps)
bauman.estimate_ratio_vertex_brkline(ratio_l2, 3)
#good.estimate_ratio(ratio, rel_tol=0.002, verbose=1)
bauman = bauman.get_subdivision(1)
pcurve = bauman.forget()
pcurve = pcurve.changed(allow_time_rev=True)
pcurve.estimate_ratio(ratio_l2,
lower_bound=32.2,
upper_bound=32.1,
sat_pack=1000,
find_model=True)
def get_serpentine_curve():
chain_code = 'jjiJJijj'
bases = ['ij','Ji','ji','iJ','JI','iJ','ji','Ji','ij']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_tokarev_curve():
"""3-D curve."""
chain_code = 'kjKikJK'
bases = ['jki', 'kij', 'kij', 'iJK', 'iJK', 'KIj', 'KIj', 'JkI']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_haverkort_curve_2():
"""3-D curve with time reversal."""
chain_code = 'kjKikJK'
bases = ['KIJ1','KJI1','KjI0','Jki1','jki0','kjI1','kJI0','iKJ0']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_haverkort_curve_1():
"""3-D curve with time reversal."""
chain_code = 'kjKikJK'
bases = ['kji0','jik0','kIj1','iKJ0','IKJ1','KIj0','Kij1','Jki1']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_R_curve():
chain_code = 'jjiiJIJi'
bases = ['ji','ji','ij','ij','ij','IJ','JI','JI','ij']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_coil_curve():
chain_code = 'jjiJJijj'
bases = ['ji','Ji','ji','jI','JI','jI','ji','Ji','ji']
return FractalCurve(
proto=chain2proto(chain_code),
base_maps=[basis2base_map(b) for b in bases],
)
def get_hilbert_curve():
"""Example of fractal curve due to D.Hilbert."""
return FractalCurve(
proto=[(0, 0), (0, 1), (1, 1), (1, 0)],
base_maps=[
BaseMap([1, 0], [False, False]), # (x,y)->(y,x)
BaseMap.id_map(2), # (x,y)->(x,y)
BaseMap.id_map(2), # (x,y)->(x,y)
BaseMap([1, 0], [True, True]), # (x,y)->(1-y,1-x)
],
)
def get_rev3_curve():
"""Curve with time reversal at last cube."""
return FractalCurve(
proto=[(0, 0), (0, 1), (1, 1), (1, 0)],
base_maps=[
BaseMap([1, 0], [False, False]), # (x,y)->(y,x)
BaseMap.id_map(2), # (x,y)->(x,y)
BaseMap.id_map(2), # (x,y)->(x,y)
BaseMap([1, 0], [True, False], time_rev=True), # (x,y)->(1-y,x), t->1-t
],
)
def get_peano_curve():
"""Example of fractal curve due to G.Peano."""
id_map = BaseMap.id_map(2)
x_map = BaseMap([0, 1], [True, False]) # (x,y)->(1-x,y)
y_map = BaseMap([0, 1], [False, True]) # (x,y)->(x,1-y)
xy_map = BaseMap([0, 1], [True, True]) # (x,y)->(1-x,1-y)
return FractalCurve(
proto=[(0, 0), (0, 1), (0, 2), (1, 2), (1, 1), (1, 0), (2, 0), (2, 1), (2, 2)],
base_maps=[
id_map, x_map, id_map,
y_map, xy_map, y_map,
id_map, x_map, id_map,
],
)
def get_haverkort_curve_A26():
"""3-D curve with time reversal."""
proto = [(0,0,0), (0,0,1), (0,1,1), (0,1,0), (1,1,0), (1,1,1), (1,0,1), (1,0,0)]
base_maps = [
BaseMap([2, 1, 0], [False, False, False]),
BaseMap([2, 0, 1], [False, False, False]),
BaseMap([2, 0, 1], [False, True, False], time_rev=True),
BaseMap([0, 2, 1], [False, True, True]),
BaseMap([0, 2, 1], [True, True, True], time_rev=True),
BaseMap([2, 0, 1], [True, True, False]),
BaseMap([2, 0, 1], [True, False, False], time_rev=True),
BaseMap([1, 2, 0], [True, False, False], time_rev=True),
]
return FractalCurve(
proto=proto,
base_maps=base_maps,
)
def get_scepin_bauman_curve():
proto = (
(0, 0), (0, 1), (0, 2),
(1, 2), (1, 1), (1, 0),
(2, 0), (2, 1), (2, 2),
)
base_maps = [
BaseMap.id_map(dim=2),
BaseMap([1,0],[True,False]), # rot(90)
BaseMap([1,0],[False,False]), # (x,y)->(y,x)
BaseMap([0,1],[False,True]), # (x,y)->(x,1-y)
BaseMap([1,0],[True,True]), # (x,y)->(1-y,1-x)
BaseMap([1,0],[False,True]), # rot(-90)
BaseMap.id_map(dim=2),
BaseMap(perm=[1,0],flip=[True,False]), # rot(90)
BaseMap(perm=[1,0],flip=[False,False]), # (x,y)->(y,x)
]
return FractalCurve(dim=2, div=3, proto=proto, base_maps=base_maps)
def get_peano5_curve():
id_map = BaseMap.id_map(2)
x_map = BaseMap([0, 1], [True, False]) # (x,y)->(1-x,y)
y_map = BaseMap([0, 1], [False, True]) # (x,y)->(x,1-y)
xy_map = BaseMap([0, 1], [True, True]) # (x,y)->(1-x,1-y)
return FractalCurve(
dim=2, div=5,
proto=[
(0, 0), (0, 1), (0, 2), (0, 3), (0, 4),
(1, 4), (1, 3), (1, 2), (1, 1), (1, 0),
(2, 0), (2, 1), (2, 2), (2, 3), (2, 4),
(3, 4), (3, 3), (3, 2), (3, 1), (3, 0),
(4, 0), (4, 1), (4, 2), (4, 3), (4, 4),
],
base_maps=[
id_map, x_map, id_map, x_map, id_map,
y_map, xy_map, y_map, xy_map, y_map,
id_map, x_map, id_map, x_map, id_map,
y_map, xy_map, y_map, xy_map, y_map,
id_map, x_map, id_map, x_map, id_map,
],
)
def generate_curves_for_brkline(self, brkline):
global_entrance = (0, ) * self.dim
global_exit = self.exit
bms_variants = []
proto = []
for cube, entrance, exit in brkline:
constr = {
global_entrance: entrance,
global_exit: exit,
}
bms_for_cube = base_map.gen_constraint_base_maps(self.dim, constr)
if self.oriented:
bms_for_cube = (bm for bm in bms_for_cube if bm.is_oriented())
bms_variants.append(bms_for_cube)
proto.append(cube)
for bms in itertools.product(*bms_variants):
curve = FractalCurve(dim=self.dim,
div=self.div,
proto=proto,
base_maps=bms)
yield curve
def get_discontinuous_curve():
return FractalCurve(
proto=[(1, 1), (0, 1), (0, 0), (1, 0), (2, 0), (2, 1), (2, 2), (1, 2), (0, 2)],
base_maps=[BaseMap.id_map(2)] * 9,
)
def pristalno():
proto = [
(0, 0),
(1, 0),
(1, 1),
(0, 1),
(0, 2),
(1, 2),
(1, 3),
(0, 3),
(0, 4),
(1, 4),
(2, 4),
(2, 3),
(3, 3),
(3, 4),
(4, 4),
(4, 3),
(4, 2),
(3, 2),
(2, 2),
(2, 1),
(2, 0),
(3, 0),
(3, 1),
(4, 1),
(4, 0),
]
bmstrs = [
'(x,y)->(x,y)',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(1-x,1-y)',
'(x,y)->(x,y)',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(1-x,1-y)',
'(x,y)->(x,y)',
'(x,y)->(x,y)',
'(x,y)->(x,y)',
'(x,y)->(1-y,x),t->1-t',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(x,y)',
'(x,y)->(x,y)',
'(x,y)->(1-y,x),t->1-t',
'(x,y)->(1-x,1-y)',
'(x,y)->(1-x,1-y)',
'(x,y)->(1-y,x),t->1-t',
'(x,y)->(1-y,x),t->1-t',
'(x,y)->(1-y,x),t->1-t',
'(x,y)->(y,1-x),t->1-t',
'(x,y)->(x,y)',
'(x,y)->(x,y)',
'(x,y)->(1-y,x),t->1-t',
]
base_maps = [bmstr2base_map(x) for x in bmstrs]
curve = FractalCurve(dim=2, div=5, proto=proto, base_maps=base_maps)
curve.check()
print(curve.get_junctions())
print('entr:', curve.get_entrance())
print('exit:', curve.get_exit())
curve.estimate_ratio_new(ratio_l2, rel_tol=0.001, max_iter=1000)
pcurve = curve.forget()
pcurve.allow_time_rev = True
result = pcurve.estimate_ratio(ratio_l2,
lower_bound=31.2,
upper_bound=31.3,
find_model=True)
if result:
print('found:', result.proto, result.base_maps)
else:
print('NOT FOUND')