def test_deltaTime_times():
'''
make sure deltaTime is dealing with times correctly
'''
# same day, same time:
early = (2004, 2, 28, 0)
late = (2004, 2, 28, 0)
diff = geo.deltaTime(early, late)
assert diff == 0., 'incorrect time difference for identical dates and times'
# same day, different time:
early = (2004, 2, 28, 0)
late = (2004, 2, 28, 1.5)
diff = geo.deltaTime(early, late)
assert diff == 5400., 'incorrect time difference for identical dates and different times'
# earlier time on later day
early = (2005, 2, 27, 2)
late = (2005, 2, 28, 1)
diff = geo.deltaTime(early, late)
assert diff == 82800., 'incorrect time difference for earlier times but later days'
def test_deltaTime_dateAware():
'''
make sure deltaTime is coping with real dates correctly
'''
# 2 days on a leap year:
early = (2004, 2, 28, 0)
late = (2004, 3, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 172800., 'incorrect date difference on leap year'
# 1 day on not a leap year:
early = (2005, 2, 28, 0)
late = (2005, 3, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 86400., 'incorrect date difference on non-leap year'
# 30 days in June:
early = (2004, 6, 30, 0)
late = (2004, 7, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 86400., 'should only be 1 day between June 30 and July 1'
# 31 days in July:
early = (2004, 7, 30, 0)
late = (2004, 8, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 172800., 'should be 2 days between July 30 and August 1'
def test_deltaTime_dateAware():
'''
make sure deltaTime is coping with real dates correctly
'''
# 2 days on a leap year:
early = (2004, 2, 28, 0)
late = (2004, 3, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 172800., 'incorrect date difference on leap year'
# 1 day on not a leap year:
early = (2005, 2, 28, 0)
late = (2005, 3, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 86400., 'incorrect date difference on non-leap year'
# 30 days in June:
early = (2004, 6, 30, 0)
late = (2004, 7, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 86400., 'should only be 1 day between June 30 and July 1'
# 31 days in July:
early = (2004, 7, 30, 0)
late = (2004, 8, 1, 0)
diff = geo.deltaTime(early, late)
assert diff == 172800., 'should be 2 days between July 30 and August 1'
def test_deltaTime_times():
'''
make sure deltaTime is dealing with times correctly
'''
# same day, same time:
early = util.testingProfile.fakeProfile([0], [0], date=[2004, 2, 28, 0])
late = util.testingProfile.fakeProfile([0], [0], date=[2004, 2, 28, 0])
diff = geo.deltaTime(early, late)
assert diff == 0., 'incorrect time difference for identical dates and times'
# same day, different time:
early = util.testingProfile.fakeProfile([0], [0], date=[2004, 2, 28, 0])
late = util.testingProfile.fakeProfile([0], [0], date=[2004, 2, 28, 1.5])
diff = geo.deltaTime(early, late)
assert diff == 5400., 'incorrect time difference for identical dates and different times'
# earlier time on later day
early = util.testingProfile.fakeProfile([0], [0], date=[2005, 2, 27, 2])
late = util.testingProfile.fakeProfile([0], [0], date=[2005, 2, 28, 1])
diff = geo.deltaTime(early, late)
assert diff == 82800., 'incorrect time difference for earlier times but later days'
def test_deltaTime_times():
'''
make sure deltaTime is dealing with times correctly
'''
# same day, same time:
early = (2004, 2, 28, 0)
late = (2004, 2, 28, 0)
diff = geo.deltaTime(early, late)
assert diff == 0., 'incorrect time difference for identical dates and times'
# same day, different time:
early = (2004, 2, 28, 0)
late = (2004, 2, 28, 1.5)
diff = geo.deltaTime(early, late)
assert diff == 5400., 'incorrect time difference for identical dates and different times'
# earlier time on later day
early = (2005, 2, 27, 2)
late = (2005, 2, 28, 1)
diff = geo.deltaTime(early, late)
assert diff == 82800., 'incorrect time difference for earlier times but later days'
def condition_h(rows, speeds, angles, index, maxSpeed):
'''
assess condition (h) from the text
'''
if index > 1 and index < len(rows) - 1:
dist1 = geo.haversineDistance(
rows[index][5], rows[index][6], rows[index - 2][5],
rows[index - 2][6]) + geo.haversineDistance(
rows[index + 1][5], rows[index + 1][6], rows[index][5],
rows[index][6])
dist2 = geo.haversineDistance(
rows[index - 1][5], rows[index - 1][6], rows[index - 2][5],
rows[index - 2][6]) + geo.haversineDistance(
rows[index + 1][5], rows[index + 1][6], rows[index - 1][5],
rows[index - 1][6])
PD1 = geo.haversineDistance(rows[index - 1][5], rows[index - 1][6],
rows[index - 2][5],
rows[index - 2][6]) / dist2
PD2 = geo.haversineDistance(rows[index][5], rows[index][6],
rows[index - 2][5],
rows[index - 2][6]) / dist1
PT1 = geo.deltaTime(
(rows[index - 2][1], rows[index - 2][2], rows[index - 2][3],
rows[index - 2][4]),
(rows[index - 1][1], rows[index - 1][2], rows[index - 1][3],
rows[index - 1][4])) / geo.deltaTime(
(rows[index - 2][1], rows[index - 2][2], rows[index - 2][3],
rows[index - 2][4]),
(rows[index + 1][1], rows[index + 1][2], rows[index + 1][3],
rows[index + 1][4]))
PT2 = geo.deltaTime((rows[index - 2][1], rows[index - 2][2],
rows[index - 2][3], rows[index - 2][4]),
(rows[index][1], rows[index][2], rows[index][3],
rows[index][4])) / geo.deltaTime(
(rows[index - 2][1], rows[index - 2][2],
rows[index - 2][3], rows[index - 2][4]),
(rows[index + 1][1], rows[index + 1][2],
rows[index + 1][3], rows[index + 1][4]))
if abs(PD1 - PT1) > 0.1 + abs(PD2 - PT2):
return index - 1, 'h'
if abs(PD2 - PT2) > 0.1 + abs(PD1 - PT1):
return index, 'h'
return -1, 'i'
def meanSpeed(speeds, headers, maxSpeed):
'''
determine mean speed, neglecting missing data, intervals less than 1h, and speeds over maxspeed, for use in condition (f)
'''
meanSpeed = 0
speedCount = 0
for iSpeed, speed in enumerate(speeds):
if speed == None or iSpeed == 0:
#missing values
continue
elif iSpeed > 0 and geo.deltaTime(headers[iSpeed-1], headers[iSpeed]) < 3600.:
#too close together in time
continue
elif speed > maxSpeed:
#too fast
continue
else:
meanSpeed += speed
speedCount += 1
if speedCount > 0:
meanSpeed = meanSpeed / speedCount
return meanSpeed
def meanSpeed(speeds, rows, maxSpeed):
'''
determine mean speed, neglecting missing data, intervals less than 1h, and speeds over maxspeed, for use in condition (f)
'''
meanSpeed = 0
speedCount = 0
for iSpeed, speed in enumerate(speeds):
if speed == None or iSpeed == 0:
#missing values
continue
elif iSpeed > 0 and geo.deltaTime((rows[iSpeed-1][1], rows[iSpeed-1][2], rows[iSpeed-1][3], rows[iSpeed-1][4]), (rows[iSpeed][1], rows[iSpeed][2], rows[iSpeed][3], rows[iSpeed][4])):
#too close together in time
continue
elif speed > maxSpeed:
#too fast
continue
else:
meanSpeed += speed
speedCount += 1
if speedCount > 0:
meanSpeed = meanSpeed / speedCount
return meanSpeed
def condition_h(rows, speeds, angles, index, maxSpeed):
'''
assess condition (h) from the text
'''
if index > 1 and index < len(rows) - 1:
dist1 = geo.haversineDistance(rows[index][5], rows[index][6], rows[index-2][5], rows[index-2][6]) + geo.haversineDistance(rows[index+1][5], rows[index+1][6], rows[index][5], rows[index][6])
dist2 = geo.haversineDistance(rows[index-1][5], rows[index-1][6], rows[index-2][5], rows[index-2][6]) + geo.haversineDistance(rows[index+1][5], rows[index+1][6], rows[index-1][5], rows[index-1][6])
PD1 = geo.haversineDistance(rows[index-1][5], rows[index-1][6], rows[index-2][5], rows[index-2][6]) / dist2
PD2 = geo.haversineDistance(rows[index][5], rows[index][6], rows[index-2][5], rows[index-2][6]) / dist1
PT1 = geo.deltaTime((rows[index-2][1], rows[index-2][2], rows[index-2][3], rows[index-2][4]), (rows[index-1][1], rows[index-1][2], rows[index-1][3], rows[index-1][4])) / geo.deltaTime((rows[index-2][1], rows[index-2][2], rows[index-2][3], rows[index-2][4]), (rows[index+1][1], rows[index+1][2], rows[index+1][3], rows[index+1][4]))
PT2 = geo.deltaTime((rows[index-2][1], rows[index-2][2], rows[index-2][3], rows[index-2][4]), (rows[index][1], rows[index][2], rows[index][3], rows[index][4])) / geo.deltaTime((rows[index-2][1], rows[index-2][2], rows[index-2][3], rows[index-2][4]), (rows[index+1][1], rows[index+1][2], rows[index+1][3], rows[index+1][4]))
if abs(PD1-PT1) > 0.1 + abs(PD2-PT2):
return index-1, 'h'
if abs(PD2 - PT2) > 0.1 + abs(PD1 - PT1):
return index, 'h'
return -1, 'i'
def condition_h(headers, speeds, angles, index, maxSpeed):
'''
assess condition (h) from the text
typeo in text, implementation incomplete
'''
if index > 1 and index < len(headers) - 1:
dist1 = geo.haversineDistance(headers[index], headers[index-2]) + geo.haversineDistance(headers[index + 1], headers[index])
dist2 = geo.haversineDistance(headers[index-1], headers[index-2]) + geo.haversineDistance(headers[index + 1], headers[index-1])
PD1 = geo.haversineDistance(headers[index-1], headers[index-2]) / dist2
PD2 = geo.haversineDistance(headers[index], headers[index-2]) / dist1
PT1 = geo.deltaTime(headers[index-2], headers[index-1]) / geo.deltaTime(headers[index-2], headers[index+1])
PT2 = geo.deltaTime(headers[index-2], headers[index]) / geo.deltaTime(headers[index-2], headers[index+1])
if abs(PD1-PT1) > 0.1 + abs(PD2-PT2):
return index-1, 'h'
if abs(PD2 - PT2) > 0.1 + abs(PD1 - PT1):
return index, 'h'
return -1, 'i'
def trackSpeed(prevHeader, header):
'''
computes the speed, including rounding tolerance from the reference,
for the track at <header>.
return None if some necessary data is missing
'''
# check that all required data is present:
if None in [header.latitude(), header.longitude(), prevHeader.latitude(), prevHeader.longitude()]:
return None
if None in [header.year(), header.month(), header.day(), header.time(), prevHeader.year(), prevHeader.month(), prevHeader.day(), prevHeader.time()]:
return None
dist = geo.haversineDistance(prevHeader, header)
DTime = geo.deltaTime(prevHeader, header)
speed = (dist - DistRes) / max(DTime, TimeRes)
return speed
def trackSpeed(prev_row, row):
'''
computes the speed, including rounding tolerance from the reference,
for the track at <row>.
return None if some necessary data is missing
'''
# check that all required data (full timestamp + lat + long) is present:
if None in [row[1], row[2], row[3], row[4], row[5], row[6]]:
return None
if None in [prev_row[1], prev_row[2], prev_row[3], prev_row[4], prev_row[5], prev_row[6] ]:
return None
dist = geo.haversineDistance(prev_row[5], prev_row[6], row[5], row[6])
DTime = geo.deltaTime((prev_row[1], prev_row[2], prev_row[3], prev_row[4]), (row[1], row[2], row[3], row[4]))
speed = (dist - DistRes) / max(DTime, TimeRes)
return speed
def trackSpeed(prev_row, row):
'''
computes the speed, including rounding tolerance from the reference,
for the track at <row>.
return None if some necessary data is missing
'''
# check that all required data (full timestamp + lat + long) is present:
if None in [row[1], row[2], row[3], row[4], row[5], row[6]]:
return None
if None in [prev_row[1], prev_row[2], prev_row[3], prev_row[4], prev_row[5], prev_row[6] ]:
return None
dist = geo.haversineDistance(prev_row[5], prev_row[6], row[5], row[6])
DTime = geo.deltaTime((prev_row[1], prev_row[2], prev_row[3], prev_row[4]), (row[1], row[2], row[3], row[4]))
speed = (dist - DistRes) / max(DTime, TimeRes)
return speed
