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comparison python/storage.py @ 778:bd684e57c431 dev

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integrated code from Laurent Gauthier
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Fri, 05 Feb 2016 17:54:38 -0500
parents ef6dd60be2e1
children 1b22d81ef5ff
comparison
equal deleted inserted replaced
777:ef6dd60be2e1 778:bd684e57c431
253 objects = [] 253 objects = []
254 254
255 connection.close() 255 connection.close()
256 return objects 256 return objects
257 257
258 def loadCurvilinearTrajectoriesFromSqlite(filename, objects, objectNumbers = None):
259 '''load alignement curvilinear positions (s_coordinate, y_coordinate, lane)
260 from an object database to an existing MovingObject list'''
261 connection = sqlite3.connect(inputFilename)
262 cursor = connection.cursor()
263
264 try:
265 cursor.execute('SELECT * from curvilinear_positions order by trajectory_id, frame_number')
266 except sqlite3.OperationalError as error:
267 printDBError(error)
268 return []
269
270 objNum = None
271 for row in cursor:
272 if objNum != row[0]:
273 objNum = row[0]
274 objects[objNum].curvilinearPositions = moving.CurvilinearPositions()
275 else:
276 objects[objNum].curvilinearPositions.addPositionsSYL(row[2],row[3],row[4])
277
278 return objects
279
280 def saveTrajectoriesToSqlite(outputFilename, objects, trajectoryType, withFeatures = False):
281 '''Writes features, ie the trajectories positions (and velocities if exist)
282 with their instants to a specified sqlite file
283
284 TODO: Not implemented for other trajectoryType than features
285 For objects, with features will control whether the features
286 corresponding to the object are also saved'''
287
288 connection = sqlite3.connect(outputFilename)
289 try:
290 cursor = connection.cursor()
291
292 if trajectoryType in ['feature', 'curvilinear']:
293 cursor.execute("CREATE TABLE IF NOT EXISTS positions (trajectory_id INTEGER, frame_number INTEGER, x_coordinate REAL, y_coordinate REAL, PRIMARY KEY(trajectory_id, frame_number))")
294 cursor.execute("CREATE TABLE IF NOT EXISTS velocities (trajectory_id INTEGER, frame_number INTEGER, x_coordinate REAL, y_coordinate REAL, PRIMARY KEY(trajectory_id, frame_number))")
295 if trajectoryType == 'curvilinear':
296 cursor.execute("CREATE TABLE IF NOT EXISTS curvilinear_positions (trajectory_id INTEGER, frame_number INTEGER, s_coordinate REAL, y_coordinate REAL, lane TEXT, PRIMARY KEY(trajectory_id, frame_number))")
297
298 positionQuery = "insert into positions (trajectory_id, frame_number, x_coordinate, y_coordinate) values (?,?,?,?)"
299 velocityQuery = "insert into velocities (trajectory_id, frame_number, x_coordinate, y_coordinate) values (?,?,?,?)"
300 curvilinearQuery = "insert into curvilinear_positions (trajectory_id, frame_number, x_coordinate, y_coordinate) values (?,?,?,?)"
301 for obj in objects:
302 num = obj.getNum()
303 frame_number = obj.getFirstInstant()
304 for position in obj.getPositions():
305 cursor.execute(positionQuery, (num, frame_number, position.x, position.y))
306 frame_number += 1
307 # velocities
308 velocities = obj.getVelocities()
309 if velocities is not None:
310 frame_number = obj.getFirstInstant()
311 for i in xrange(velocities.length()-1):
312 v = velocities[i]
313 cursor.execute(velocityQuery, (num, frame_number, v.x, v.y))
314 frame_number += 1
315 # curvilinear trajectories
316 if trajectoryType == 'curvilinear' and hasattr(obj, 'curvilinearPositions') is not None:
317 frame_number = obj.getFirstInstant()
318 for position in obj.getCurvilinearPositions():
319 cursor.execute(curvilinearQuery, (num, frame_number, position[0], position[1], position[2]))
320 frame_number += 1
321 connection.commit()
322 #elif trajectoryType == 'object':
323 else:
324 print('Unknown trajectory type {}'.format(trajectoryType))
325 except sqlite3.OperationalError as error:
326 printDBError(error)
327 connection.close()
328
258 def savePrototypesToSqlite(filename, prototypes, trajectoryType = 'feature'): 329 def savePrototypesToSqlite(filename, prototypes, trajectoryType = 'feature'):
259 'Work in progress, do not use' 330 'Work in progress, do not use'
260 connection = sqlite3.connect(filename) 331 connection = sqlite3.connect(filename)
261 cursor = connection.cursor() 332 cursor = connection.cursor()
262 try: 333 try:
425 except sqlite3.OperationalError as error: 496 except sqlite3.OperationalError as error:
426 printDBError(error) 497 printDBError(error)
427 return boundingBoxes 498 return boundingBoxes
428 connection.close() 499 connection.close()
429 return boundingBoxes 500 return boundingBoxes
430
431 def saveTrajectoriesToSqlite(outputFilename, objects, trajectoryType, withFeatures = False):
432 '''Writes features, ie the trajectories positions (and velocities if exist)
433 with their instants to a specified sqlite file
434
435 TODO: Not implemented for other trajectoryType than features
436 For objects, with features will control whether the features
437 corresponding to the object are also saved'''
438
439 connection = sqlite3.connect(outputFilename)
440 try:
441 cursor = connection.cursor()
442
443 if trajectoryType == 'feature':
444 cursor.execute("CREATE TABLE IF NOT EXISTS positions (trajectory_id INTEGER, frame_number INTEGER, x_coordinate REAL, y_coordinate REAL, PRIMARY KEY(trajectory_id, frame_number))")
445 cursor.execute("CREATE TABLE IF NOT EXISTS velocities (trajectory_id INTEGER, frame_number INTEGER, x_coordinate REAL, y_coordinate REAL, PRIMARY KEY(trajectory_id, frame_number))")
446
447 positionQuery = "insert into positions (trajectory_id, frame_number, x_coordinate, y_coordinate) values (?,?,?,?)"
448 velocityQuery = "insert into velocities (trajectory_id, frame_number, x_coordinate, y_coordinate) values (?,?,?,?)"
449 for obj in objects:
450 num = obj.getNum()
451 frame_number = obj.getFirstInstant()
452 for position in obj.getPositions():
453 cursor.execute(positionQuery, (num, frame_number, position.x, position.y))
454 frame_number += 1
455 if obj.getVelocities() is not None:
456 frame_number = obj.getFirstInstant()
457 velocities = obj.getVelocities()
458 for i in xrange(velocities.length()-1):
459 v = velocities[i]
460 cursor.execute(velocityQuery, (num, frame_number, v.x, v.y))
461 frame_number += 1
462 connection.commit()
463 #elif trajectoryType == 'feature':
464 else:
465 print('Unknown trajectory type {}'.format(trajectoryType))
466 except sqlite3.OperationalError as error:
467 printDBError(error)
468 connection.close()
469 501
470 ######################### 502 #########################
471 # saving and loading for scene interpretation (Mohamed Gomaa Mohamed's PhD) 503 # saving and loading for scene interpretation (Mohamed Gomaa Mohamed's PhD)
472 ######################### 504 #########################
473 505