'''
This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).
PM4Py is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PM4Py is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PM4Py. If not, see <https://www.gnu.org/licenses/>.
'''
from pm4py.objects.petri.obj import Marking
[docs]def discover_initial_marking(petri):
"""
Discovers initial marking from a Petri net
Parameters
------------
petri
Petri net
Returns
------------
initial_marking
Initial marking of the Petri net
"""
initial_marking = Marking()
for place in petri.places:
if len(place.in_arcs) == 0:
initial_marking[place] = 1
return initial_marking