def _initialize():
"""Make a simple simulation."""
from topo.base.simulation import Simulation
from topo.base.cf import CFSheet, CFProjection
from topo.sheet import GeneratorSheet
sim = Simulation(register=True, name="test pattern tester")
sim['GS'] = GeneratorSheet(nominal_density=2)
sim['GS2'] = GeneratorSheet(nominal_density=2)
sim['S'] = CFSheet(nominal_density=2)
sim['S2'] = CFSheet(nominal_density=2)
sim.connect('GS', 'S', connection_type=CFProjection, delay=0.05)
sim.connect('GS', 'S2', connection_type=CFProjection, delay=0.05)
sim.connect('GS2', 'S2', connection_type=CFProjection, delay=0.05)
def basic_save_load_snapshot(self):
"""
Very basic test to check the activity matrix of a GeneratorSheet
comes back ok, and that class attributes are pickled.
"""
assert topo.sim.name == SIM_NAME
topo.sim['R'] = GeneratorSheet(input_generator=Gaussian(),
nominal_density=2)
topo.sim.run(1)
R_act = copy.deepcopy(topo.sim['R'].activity)
Line.x = 12.0
topo.sim.startup_commands.append("z=99")
save_snapshot(SNAPSHOT_NAME)
Line.x = 9.0
exec "z=88" in __main__.__dict__
topo.sim['R'].set_input_generator(Line())
topo.sim.run(1)
load_snapshot(
resolve_path(SNAPSHOT_NAME, search_paths=[normalize_path.prefix]))
# CEBALERT: should also test that unpickling order is correct
# (i.e. startup_commands, class attributes, simulation)
assert_array_equal(R_act, topo.sim['R'].activity)
self.assertEqual(Line.x, 12.0)
self.assertEqual(__main__.__dict__['z'], 99)
def setUp(self):
self.original_output_path = normalize_path.prefix
normalize_path.prefix = tempfile.mkdtemp()
self.sim = Simulation(register=True,name="testplotfilesaver")
self.sim['A'] = GeneratorSheet(nominal_density=2)
self.sim['B'] = CFSheet(nominal_density=2)
self.sim.connect('A','B',connection_type=CFProjection,name='Afferent')
def new_simulation(name=None, register=True):
from topo.base.simulation import Simulation
from topo.base.cf import CFSheet, CFProjection
from topo.sheet import GeneratorSheet
from topo.base.boundingregion import BoundingBox
sim = Simulation(register=register, name=name)
b = BoundingBox(radius=0.5)
sim['GS'] = GeneratorSheet(nominal_density=2, nominal_bounds=b)
sim['GS2'] = GeneratorSheet(nominal_density=2, nominal_bounds=b)
sim['S'] = CFSheet(nominal_density=2, nominal_bounds=b)
sim['S2'] = CFSheet(nominal_density=2, nominal_bounds=b)
sim.connect('GS', 'S', connection_type=CFProjection, delay=0.05)
sim.connect('GS', 'S2', connection_type=CFProjection, delay=0.05)
sim.connect('GS2', 'S2', connection_type=CFProjection, delay=0.05)
return sim
def setUp(self):
"""
Create a CFSheet ('V1') connected to a GeneratorSheet ('Retina').
"""
self.s = Simulation()
self.s['Retina'] = GeneratorSheet(nominal_density=4.0)
self.s['V1'] = CFSheet(nominal_density=4.0)
self.s['V2'] = CFSheet(nominal_density=4.0)
self.s.connect('Retina',
'V1',
delay=0.5,
connection_type=CFProjection,
name='RtoV1',
learning_fn=CFPLF_Hebbian())
self.s.connect('Retina',
'V2',
delay=0.5,
connection_type=CFProjection,
name='RtoV2',
learning_fn=CFPLF_Hebbian())