def setup(self):
self.source = MockID(252)
self.target = MockID(539)
self.nc = h.NetCon(self.source._cell.source,
self.target._cell.synapse,
sec=self.source._cell.source_section)
self.nc.delay = 1.0
self.c = simulator.Connection(self.source, self.target, self.nc)
def setUp(self):
self.pre = 0
self.post = 1
self.c = simulator.Connection(MockProjection(),
self.pre,
self.post,
weight=0.123,
delay=0.321)
def _divergent_connect(self, source, targets, weights, delays):
"""
Connect a neuron to one or more other neurons with a static connection.
`source` -- the ID of the pre-synaptic cell.
`targets` -- a list/1D array of post-synaptic cell IDs, or a single ID.
`weight` -- a list/1D array of connection weights, or a single weight.
Must have the same length as `targets`.
`delays` -- a list/1D array of connection delays, or a single delay.
Must have the same length as `targets`.
"""
if not isinstance(
source,
int) or source > simulator.state.gid_counter or source < 0:
errmsg = "Invalid source ID: %s (gid_counter=%d)" % (
source, simulator.state.gid_counter)
raise errors.ConnectionError(errmsg)
if not core.is_listlike(targets):
targets = [targets]
if isinstance(weights, float):
weights = [weights]
if isinstance(delays, float):
delays = [delays]
assert len(targets) > 0
for target in targets:
if not isinstance(target, common.IDMixin):
raise errors.ConnectionError("Invalid target ID: %s" % target)
assert len(targets) == len(weights) == len(delays), "%s %s %s" % (
len(targets), len(weights), len(delays))
self._resolve_synapse_type()
for target, weight, delay in zip(targets, weights, delays):
if target.local:
if "." in self.synapse_type:
section, synapse_type = self.synapse_type.split(".")
synapse_object = getattr(getattr(target._cell, section),
synapse_type)
else:
synapse_object = getattr(target._cell, self.synapse_type)
nc = simulator.state.parallel_context.gid_connect(
int(source), synapse_object)
nc.weight[0] = weight
# if we have a mechanism (e.g. from 9ML) that includes multiple
# synaptic channels, need to set nc.weight[1] here
if nc.wcnt() > 1 and hasattr(target._cell, "type"):
nc.weight[1] = target._cell.type.synapse_types.index(
self.synapse_type)
nc.delay = delay
# nc.threshold is supposed to be set by ParallelContext.threshold, called in _build_cell(), above, but this hasn't been tested
self.connections.append(
simulator.Connection(source, target, nc))
def _convergent_connect(self, sources, target, weights, delays):
"""
Connect a neuron to one or more other neurons with a static connection.
`sources` -- a list/1D array of pre-synaptic cell IDs, or a single ID.
`target` -- the ID of the post-synaptic cell.
`weight` -- a list/1D array of connection weights, or a single weight.
Must have the same length as `targets`.
`delays` -- a list/1D array of connection delays, or a single delay.
Must have the same length as `targets`.
"""
if not isinstance(
target,
int) or target > simulator.state.gid_counter or target < 0:
errmsg = "Invalid target ID: %s (gid_counter=%d)" % (
target, simulator.state.gid_counter)
raise errors.ConnectionError(errmsg)
if not core.is_listlike(sources):
sources = [sources]
if isinstance(weights, float):
weights = [weights]
if isinstance(delays, float):
delays = [delays]
assert len(sources) > 0
for source in sources:
if not isinstance(source, common.IDMixin):
raise errors.ConnectionError("Invalid source ID: %s" % source)
assert len(sources) == len(weights) == len(delays), "%s %s %s" % (
len(sources), len(weights), len(delays))
if target.local:
for source, weight, delay in zip(sources, weights, delays):
if self.synapse_type is None:
self.synapse_type = weight >= 0 and 'excitatory' or 'inhibitory'
if self.synapse_model == 'Tsodyks-Markram' and 'TM' not in self.synapse_type:
self.synapse_type += '_TM'
synapse_object = getattr(target._cell, self.synapse_type)
nc = simulator.state.parallel_context.gid_connect(
int(source), synapse_object)
nc.weight[0] = weight
nc.delay = delay
# nc.threshold is supposed to be set by ParallelContext.threshold, called in _build_cell(), above, but this hasn't been tested
self.connections.append(
simulator.Connection(source, target, nc))
