def getHrsInDayTime(self, start, end):
"Split up given time range by PTCS day and night time hours."
dur = TimeAgent.dtDiffHrs(start, end)
startDate = date(start.year, start.month, start.day)
#rise, set = self.sun.getRiseSet(date1)
# cast a wide net: compute the rise and set times for any days
# that might be covered by the given time range
days = (end - start).days + 2
dayTimes = []
for day in range(days):
dt = startDate + timedelta(days = day)
dayTimes.append(self.sun.getPTCSRiseSet(dt))
# where does our given time range intersect with day time?
ints = AnalogSet.intersects([dayTimes, [(start, end)]])
if len(ints) > 0:
# some day time
day = 0.0
for intersection in ints:
td = intersection[1] - intersection[0]
day += TimeAgent.timedelta2frachours(td)
# the rest must be night time
night = abs(dur - day)
else:
# our range is all night time.
day = 0.0
night = dur
return (day, night)
def getDowntime(periods, month):
"This does not use getTime because lost time must be handled carefully"
ps = filterPeriods(periods, 'p.session.project.is_science()')
ps.sort(key = lambda x: x.start)
total = 0.0
for p in ps:
start, stop = normalizePeriodStartStop(p, month)
hrs = TimeAgent.timedelta2frachours(stop - start)
# We must normalize the lost time as well
lostTime = (hrs/p.duration) * p.accounting.lost_time()
total += lostTime
return total
def getTime(periods, month):
periods.sort(key = lambda x: x.start)
return sum([TimeAgent.timedelta2frachours(stop - start) \
for start, stop in [normalizePeriodStartStop(p, month) \
for p in periods]])
def diffHrs(begin, end):
return TimeAgent.timedelta2frachours(end - begin)
