def __init__(self,
size,
cellclass,
cellparams,
structure=None,
label=None):
"""
Instantiates a :py:object:`Population`.
"""
global controller, multi_cast_vertex
# Raise an exception if the Pop. attempts to employ spatial structure
if structure:
raise Exception(
"Spatial structure is unsupported for Populations.")
# Create a graph vertex for the population and add it to PACMAN
self.vertex = cellclass(size, label=label, **cellparams)
#check if the vertex is a cmd sender, if so store for future
if self.vertex.requires_multi_cast_source():
if multi_cast_vertex is None:
multi_cast_vertex = MultiCastSource()
controller.add_vertex(multi_cast_vertex)
edge = graph.Edge(multi_cast_vertex, self.vertex)
controller.add_edge(edge)
self.parameters = PyNNParametersSurrogate(self.vertex)
controller.add_vertex(self.vertex)
#add any dependant edges and verts if needed
dependant_verts, dependant_edges = \
self.vertex.get_dependant_vertexes_edges()
if dependant_verts is not None:
for dependant_vert in dependant_verts:
controller.add_vertex(dependant_vert)
if dependant_edges is not None:
for dependant_edge in dependant_edges:
controller.add_edge(dependant_edge)
#initlise common stuff
self.size = size
self.recordSpikeFile = None
self.recordVFile = None
self.recordGSynFile = None
