def addVessel(self, Id=None, dataDict=False):
'''
adds vessel to the Network
if no id, a random id is choosen
if no DataDict, no values are assigned
'''
# set id to 1 + highest id of existing vessels
if Id == None:
try:
Id = max(self.vessels.keys()) + 1
except:
Id = 0
# check Id
if Id not in self.vessels:
# create vessel with given variables
vessel = Vessel(Id=Id, name=('vessel_' + str(Id)))
# set vesselData if available
if dataDict:
vessel.updateDataDict(dataDict)
# add vessel to network
self.vessels[vessel.Id] = vessel
# raise error if Id is set doubled
else:
raise ValueError(
"vessel Id =%d exists already! Could not add vessel" %
vessel.Id)
