Mercurial > hg > nsaunier > traffic-intelligence

comparison python/utils.py @ 32:48e56179c39e

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added ceil function
author Nicolas Saunier <nico@confins.net>
date Sat, 10 Apr 2010 18:58:43 -0400
parents c000f37c316d
children 8cafee54466f
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31:c000f37c316d 32:48e56179c39e
28 28
29 29
30 ######################### 30 #########################
31 # maths section 31 # maths section
32 ######################### 32 #########################
33
34 def ceilDecimals(v, nDecimals):
35 '''Rounds the number at the nth decimal
36 eg 1.23 at 0 decimal is 2, at 1 decimal is 1.3'''
37 from math import ceil,pow
38 tens = pow(10,nDecimals)
39 return ceil(v*tens)/tens
33 40
34 def segmentIntersection(p1, p2, p3, p4): 41 def segmentIntersection(p1, p2, p3, p4):
35 '''Returns the intersecting point of the segments [p1, p2] and [p3, p4], None otherwise''' 42 '''Returns the intersecting point of the segments [p1, p2] and [p3, p4], None otherwise'''
36 from numpy import matrix 43 from numpy import matrix
37 from numpy.linalg import linalg, det 44 from numpy.linalg import linalg, det