Mercurial Hosting > traffic-intelligence

comparison python/moving.py @ 38:0d321c23d337

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
added norm functions for Point and accessor methods for MovingObject
author Nicolas Saunier <nico@confins.net>
date Tue, 18 May 2010 17:35:09 -0400
parents 418b41056e6c
children e47168f6b694
comparison
equal deleted inserted replaced
37:911b52744ceb 38:0d321c23d337
139 >>> Point(3,4)-Point(1,7) 139 >>> Point(3,4)-Point(1,7)
140 (2.000000,-3.000000) 140 (2.000000,-3.000000)
141 ''' 141 '''
142 return Point(self.x-other.x, self.y-other.y) 142 return Point(self.x-other.x, self.y-other.y)
143 143
144 def norm2Squared(self):
145 '''2-norm distance (Euclidean distance)
146 >>> Point(3,2).norm2Squared()
147 13
148 '''
149 return self.x*self.x+self.y*self.y
150
151 def norm2(self):
152 '2-norm distance (Euclidean distance)'
153 return sqrt(self.norm2Squared())
154
155 def distanceNorm2(p1, p2):
156 '''
157 >>> Point.distanceNorm2(Point(3,4),Point(1,7))
158 3.6055512754639891
159 '''
160 return (p1-p2).norm2()
161
144 def aslist(self): 162 def aslist(self):
145 return [self.x, self.y] 163 return [self.x, self.y]
146 164
147 class Trajectory: 165 class Trajectory:
148 '''Class for trajectories 166 '''Class for trajectories
224 self.type = type 242 self.type = type
225 # compute bounding polygon from trajectory 243 # compute bounding polygon from trajectory
226 244
227 def length(self): 245 def length(self):
228 return self.timeInterval.length() 246 return self.timeInterval.length()
247
248 def getPositions(self):
249 return self.positions
250
251 def getVelocities(self):
252 return self.velocities
253
254 def getPositionAt(self, i):
255 return self.positions[i]
256
257 def getVelocityAt(self, i):
258 return self.velocities[i]
229 259
230 def getXCoordinates(self): 260 def getXCoordinates(self):
231 return self.positions.getXCoordinates() 261 return self.positions.getXCoordinates()
232 262
233 def getYCoordinates(self): 263 def getYCoordinates(self):