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comparison python/moving.py @ 23:5f2921ad4f7e

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made Trajectory indexable and timeinterval iterable
author Nicolas Saunier <nico@confins.net>
date Fri, 04 Dec 2009 13:47:22 -0500
parents 169cd4679366
children 28e546861263
comparison
equal deleted inserted replaced
22:169cd4679366 23:5f2921ad4f7e
17 self.first=first 17 self.first=first
18 self.last=last 18 self.last=last
19 19
20 def __str__(self): 20 def __str__(self):
21 return '%d %d'%(self.first, self.last) 21 return '%d %d'%(self.first, self.last)
22
23 def __iter__(self):
24 self.iterInstantNum = 0
25 return self
26
27 def next(self):
28 if self.iterInstantNum >= self.length():
29 raise StopIteration
30 else:
31 self.iterInstantNum += 1
32 return self.first+self.iterInstantNum
22 33
23 def empty(self): 34 def empty(self):
24 ''' 35 '''
25 >>> TimeInterval().empty() 36 >>> TimeInterval().empty()
26 True 37 True
96 self.positions = positions 107 self.positions = positions
97 108
98 def __str__(self): 109 def __str__(self):
99 return ' '.join(map(utils.printPoint, self.positions[0], self.positions[1])) 110 return ' '.join(map(utils.printPoint, self.positions[0], self.positions[1]))
100 111
112 def __getitem__(self, i):
113 return [self.positions[0][i], self.positions[1][i]]
114
101 def __iter__(self): 115 def __iter__(self):
102 self.iterInstantNum = 0 116 self.iterInstantNum = 0
103 return self 117 return self
104 118
105 def next(self): 119 def next(self):
106 if self.iterInstantNum >= self.length(): 120 if self.iterInstantNum >= self.length():
107 self.iterInstantNum = 0
108 raise StopIteration 121 raise StopIteration
109 else: 122 else:
110 self.iterInstantNum += 1 123 self.iterInstantNum += 1
111 return self.getPosition(self.iterInstantNum-1) 124 return self[self.iterInstantNum-1]
112
113 def getPosition(self, i):
114 return [self.positions[0][i], self.positions[1][i]]
115 125
116 def addPosition(self, point): 126 def addPosition(self, point):
117 if not self.positions: 127 if not self.positions:
118 self.positions = [[point[0]],[point[1]]] 128 self.positions = [[point[0]],[point[1]]]
119 else: 129 else:
123 def draw(self): 133 def draw(self):
124 from matplotlib.pylab import plot 134 from matplotlib.pylab import plot
125 plot(self.positions[0], self.positions[1]) 135 plot(self.positions[0], self.positions[1])
126 136
127 def length(self): 137 def length(self):
128 return len(self.getXCoordinates()) 138 return len(self.positions[0])
129 139
130 def getXCoordinates(self): 140 def getXCoordinates(self):
131 return self.positions[0] 141 return self.positions[0]
132 142
133 def getYCoordinates(self): 143 def getYCoordinates(self):