Mercurial > hg > nsaunier > traffic-intelligence
comparison python/utils.py @ 248:571ba5ed22e2
added utils for bus processing
| author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
|---|---|
| date | Wed, 18 Jul 2012 02:54:22 -0400 |
| parents | ee1caff48b03 |
| children | 4aa792cb0fa9 |
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| 247:8f0ed138d373 | 248:571ba5ed22e2 |
|---|---|
| 161 | 161 |
| 162 | 162 |
| 163 ######################### | 163 ######################### |
| 164 # maths section | 164 # maths section |
| 165 ######################### | 165 ######################### |
| 166 | |
| 167 def framesToTime(nFrames, frameRate, initialTime = (0.,0.,0.)): | |
| 168 'returns hour, minutes and seconds' | |
| 169 from math import floor | |
| 170 seconds = floor(float(nFrames)/float(frameRate)) | |
| 171 h = floor(seconds/3600.) | |
| 172 seconds = seconds - h*3600 | |
| 173 m = floor(seconds/60) | |
| 174 seconds = seconds - m*60 | |
| 175 return (h+initialTime[0], m+initialTime[1], seconds+initialTime[2]) | |
| 166 | 176 |
| 167 def sortXY(X,Y): | 177 def sortXY(X,Y): |
| 168 'returns the sorted (x, Y(x)) sorted on X' | 178 'returns the sorted (x, Y(x)) sorted on X' |
| 169 D = {} | 179 D = {} |
| 170 for x, y in zip(X,Y): | 180 for x, y in zip(X,Y): |