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comparison python/ubc_utils.py @ 47:e27598865af3

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modified loadtrajectories to load objects and prototypes
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Thu, 23 Sep 2010 17:12:09 -0400
parents be3ae926e4e8
children 8aed225f71d8
comparison
equal deleted inserted replaced
46:b5d007612e16 47:e27598865af3
6 6
7 __metaclass__ = type 7 __metaclass__ = type
8 8
9 delimiterChar = '%'; 9 delimiterChar = '%';
10 10
11 def getFileType(s):
12 filePrefix = utils.removeExtension(s)
13 i = filePrefix.rfind('-')
14 if i>0:
15 return filePrefix[i+1:]
16 else:
17 return ''
18
11 def getLines(f): 19 def getLines(f):
12 '''Gets a complete entry (all the lines) in between delimiterChar.''' 20 '''Gets a complete entry (all the lines) in between delimiterChar.'''
13 dataStrings = [] 21 dataStrings = []
14 s = utils.readline(f) 22 s = utils.readline(f)
15 while (len(s) > 0) and (not s.startswith(delimiterChar)): 23 while (len(s) > 0) and (not s.startswith(delimiterChar)):
16 dataStrings += [s.strip()] 24 dataStrings += [s.strip()]
17 s = utils.readline(f) 25 s = utils.readline(f)
18 return dataStrings 26 return dataStrings
27
28 def saveTrajectorieUserTypes(inFilename, outFilename, objects):
29 '''The program saves the objects,
30 by just copying the corresponding trajectory and velocity data
31 from the inFilename, and saving the characteristics in objects (first line)
32 into outFilename'''
33 infile = utils.openCheck(inFilename)
34 outfile = utils.openCheck(outFilename)
35
36 if (not infile) | (not outfile):
37 return
38
39 lines = getLines(file)
40 objNum = 0
41 while lines != []:
42 i = 0
43 while (i<len(objects)) and (objects[i].num != objNum):
44 i+=1
45 if i<len(objects):
46 l = lines[0].split(' ')
47 outfile.write()
48 # next object
49 objNum += 1
19 50
20 def loadTrajectories(filename, nObjects = -1): 51 def loadTrajectories(filename, nObjects = -1):
21 '''Loads trajectories''' 52 '''Loads trajectories'''
22 53
23 file = utils.openCheck(filename) 54 file = utils.openCheck(filename)
24 if (not file): 55 if (not file):
25 return [] 56 return []
26 57
27 objects = [] 58 objects = []
28 objNum = 0 59 objNum = 0
29 isObjectFile = filename.endswith('objects.txt'); 60 objectType = getFileType(filename)
30 lines = getLines(file) 61 lines = getLines(file)
31 while (lines != []) and ((nObjects<0) or (objNum<nObjects)): 62 while (lines != []) and ((nObjects<0) or (objNum<nObjects)):
32 l = lines[0].split(' ') 63 l = lines[0].split(' ')
33 parsedLine = [int(n) for n in l[:4]] 64 parsedLine = [int(n) for n in l[:4]]
34 obj = MovingObject(num = objNum, timeInterval = TimeInterval(parsedLine[1],parsedLine[2])) 65 obj = MovingObject(num = objNum, timeInterval = TimeInterval(parsedLine[1],parsedLine[2]))
35 #add = True 66 #add = True
36 if len(lines) >= 3: 67 if len(lines) >= 3:
37 obj.positions = Trajectory.load(lines[1], lines[2]) 68 obj.positions = Trajectory.load(lines[1], lines[2])
38 if len(lines) >= 5: 69 if len(lines) >= 5:
39 obj.velocities = Trajectory.load(lines[3], lines[4]) 70 obj.velocities = Trajectory.load(lines[3], lines[4])
40 if (isObjectFile): 71 if objectType == 'objects':
41 obj.userType = parsedLine[3] 72 obj.userType = parsedLine[3]
42 obj.nObjects = float(l[4]) 73 obj.nObjects = float(l[4])
43 obj.featureNumbers = [int(n) for n in l[5:]] 74 obj.featureNumbers = [int(n) for n in l[5:]]
44 75
45 # load contour data if available 76 # load contour data if available
46 if len(lines) >= 6: 77 if len(lines) >= 6:
47 obj.contourType = utils.line2Floats(lines[6]) 78 obj.contourType = utils.line2Floats(lines[6])
48 obj.contourOrigins = Trajectory.load(lines[7], lines[8]) 79 obj.contourOrigins = Trajectory.load(lines[7], lines[8])
49 obj.contourSizes = Trajectory.load(lines[9], lines[10]) 80 obj.contourSizes = Trajectory.load(lines[9], lines[10])
81 elif objectType == 'prototypes':
82 obj.userType = parsedLine[3]
83 obj.nMatchings = int(l[4])
50 84
51 if len(lines) != 2: 85 if len(lines) != 2:
52 objects.append(obj) 86 objects.append(obj)
53 objNum+=1 87 objNum+=1
54 else: 88 else: