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comparison python/ubc_utils.py @ 48:8aed225f71d8

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rearranged code for function readline and getlines (and characters), moved invertHomography to cvutils
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Thu, 23 Sep 2010 17:24:31 -0400
parents e27598865af3
children 3aed17fc468d
comparison
equal deleted inserted replaced
47:e27598865af3 48:8aed225f71d8
3 3
4 import utils 4 import utils
5 from moving import MovingObject, TimeInterval, Trajectory 5 from moving import MovingObject, TimeInterval, Trajectory
6 6
7 __metaclass__ = type 7 __metaclass__ = type
8
9 delimiterChar = '%';
10 8
11 def getFileType(s): 9 def getFileType(s):
12 filePrefix = utils.removeExtension(s) 10 filePrefix = utils.removeExtension(s)
13 i = filePrefix.rfind('-') 11 i = filePrefix.rfind('-')
14 if i>0: 12 if i>0:
15 return filePrefix[i+1:] 13 return filePrefix[i+1:]
16 else: 14 else:
17 return '' 15 return ''
18 16
19 def getLines(f): 17 def saveTrajectoryUserTypes(inFilename, outFilename, objects):
20 '''Gets a complete entry (all the lines) in between delimiterChar.'''
21 dataStrings = []
22 s = utils.readline(f)
23 while (len(s) > 0) and (not s.startswith(delimiterChar)):
24 dataStrings += [s.strip()]
25 s = utils.readline(f)
26 return dataStrings
27
28 def saveTrajectorieUserTypes(inFilename, outFilename, objects):
29 '''The program saves the objects, 18 '''The program saves the objects,
30 by just copying the corresponding trajectory and velocity data 19 by just copying the corresponding trajectory and velocity data
31 from the inFilename, and saving the characteristics in objects (first line) 20 from the inFilename, and saving the characteristics in objects (first line)
32 into outFilename''' 21 into outFilename'''
33 infile = utils.openCheck(inFilename) 22 infile = utils.openCheck(inFilename)
34 outfile = utils.openCheck(outFilename) 23 outfile = utils.openCheck(outFilename)
35 24
36 if (not infile) | (not outfile): 25 if (not infile) | (not outfile):
37 return 26 return
38 27
39 lines = getLines(file) 28 lines = utils.getLines(infile)
40 objNum = 0 29 objNum = 0
41 while lines != []: 30 while lines != []:
42 i = 0 31 i = 0
43 while (i<len(objects)) and (objects[i].num != objNum): 32 while (i<len(objects)) and (objects[i].num != objNum):
44 i+=1 33 i+=1
45 if i<len(objects): 34 if i<len(objects):
46 l = lines[0].split(' ') 35 l = lines[0].split(' ')
47 outfile.write() 36 outfile.write()
48 # next object 37 # next object
49 objNum += 1 38 objNum += 1
39 lines = utils.getLines(infile)
50 40
51 def loadTrajectories(filename, nObjects = -1): 41 def loadTrajectories(filename, nObjects = -1):
52 '''Loads trajectories''' 42 '''Loads trajectories'''
53 43
54 file = utils.openCheck(filename) 44 file = utils.openCheck(filename)
56 return [] 46 return []
57 47
58 objects = [] 48 objects = []
59 objNum = 0 49 objNum = 0
60 objectType = getFileType(filename) 50 objectType = getFileType(filename)
61 lines = getLines(file) 51 lines = utils.getLines(file)
62 while (lines != []) and ((nObjects<0) or (objNum<nObjects)): 52 while (lines != []) and ((nObjects<0) or (objNum<nObjects)):
63 l = lines[0].split(' ') 53 l = lines[0].split(' ')
64 parsedLine = [int(n) for n in l[:4]] 54 parsedLine = [int(n) for n in l[:4]]
65 obj = MovingObject(num = objNum, timeInterval = TimeInterval(parsedLine[1],parsedLine[2])) 55 obj = MovingObject(num = objNum, timeInterval = TimeInterval(parsedLine[1],parsedLine[2]))
66 #add = True 56 #add = True
86 objects.append(obj) 76 objects.append(obj)
87 objNum+=1 77 objNum+=1
88 else: 78 else:
89 print("Error two lines of data for feature %d"%(f.num)) 79 print("Error two lines of data for feature %d"%(f.num))
90 80
91 lines = getLines(file) 81 lines = utils.getLines(file)
92 82
93 file.close() 83 file.close()
94 return objects 84 return objects
95 85
96 def loadCollisionPoints(filename, nPoints = -1): 86 def loadCollisionPoints(filename, nPoints = -1):
100 if (not file): 90 if (not file):
101 return [] 91 return []
102 92
103 points = {} 93 points = {}
104 num = 0 94 num = 0
105 lines = getLines(file) 95 lines = utils.getLines(file)
106 while (lines != []) and ((nPoints<0) or (num<nPoints)): 96 while (lines != []) and ((nPoints<0) or (num<nPoints)):
107 parsedLine = [int(n) for n in lines[0].split(' ')] 97 parsedLine = [int(n) for n in lines[0].split(' ')]
108 protagonistNums = (parsedLine[0], parsedLine[1]) 98 protagonistNums = (parsedLine[0], parsedLine[1])
109 points[protagonistNums] = [[float(n) for n in lines[1].split(' ')], 99 points[protagonistNums] = [[float(n) for n in lines[1].split(' ')],
110 [float(n) for n in lines[2].split(' ')]] 100 [float(n) for n in lines[2].split(' ')]]
111 101
112 num+=1 102 num+=1
113 lines = getLines(file) 103 lines = utils.getLines(file)
114 104
115 file.close() 105 file.close()
116 return points 106 return points