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comparison python/moving.py @ 543:cb213269d330

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defensive code for curvilinear trajectory initialization
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Mon, 07 Jul 2014 16:59:20 -0400
parents a3add9f751ef
children b5525249eda1
comparison
equal deleted inserted replaced
542:a3add9f751ef 543:cb213269d330
632 '''Sub class of trajectory for trajectories with curvilinear coordinates and lane assignements 632 '''Sub class of trajectory for trajectories with curvilinear coordinates and lane assignements
633 longitudinal coordinate is stored as first coordinate (exterior name S) 633 longitudinal coordinate is stored as first coordinate (exterior name S)
634 lateral coordiante is stored as second coordinate''' 634 lateral coordiante is stored as second coordinate'''
635 635
636 def __init__(self, S = None, Y = None, lanes = None): 636 def __init__(self, S = None, Y = None, lanes = None):
637 if S == None or Y == None: 637 if S == None or Y == None or len(S) != len(Y):
638 self.positions = [[],[]] 638 self.positions = [[],[]]
639 if len(S) != len(Y):
640 print("S and Y coordinates of different lengths\nInitializing to empty lists")
639 else: 641 else:
640 self.positions = [S,Y] 642 self.positions = [S,Y]
641 if lanes == None: 643 if lanes == None or len(lanes) != self.length():
642 self.lanes = [] 644 self.lanes = []
643 else: 645 else:
644 self.lanes = lanes 646 self.lanes = lanes
645 647
646 def __getitem__(self,i): 648 def __getitem__(self,i):