def calculate_julian(year, month, day, hours=None, minutes=None, seconds=None):
"""
Calculate the julian date value.
:param year: the year
:param month: the month
:param day: the day
:param hours: the hours
:param minutes: the minutes
:param seconds: the seconds
:return: the julian date
"""
yr = mathutils.to_int(year)
mth = mathutils.to_int(month)
day = mathutils.to_int(day)
hrs = mathutils.to_int(hours)
mns = mathutils.to_int(minutes)
scs = mathutils.to_float(seconds)
if mth <= 2:
yr -= 1
mth += 12
if yr >= 1582:
A = yr / 100
B = 2 - A + (A / 4)
else:
B = 0
if yr < 0:
C = int((365.25 * yr) - 0.75)
else:
C = int(365.25 * yr)
D = int(30.6001 * (mth + 1))
return 1720994.5 + B + C + D + day + (((
(mathutils.fix(scs, TIME_SECONDS_PRECISION) / 60.0) + float(mns)) /
60.0) + float(hrs)) / 24.0
def load(file="USCityLatLng.csv"):
global CITIES
with open(file, 'r') as fref:
line = __readline(fref)
while line:
parts = line.split(',')
city = unicode(parts[0])
region = unicode(parts[1])
lat = mathutils.to_float(parts[2])
lng = mathutils.to_float(parts[3])
key = city.lower()
entry = (city, region, lat, lng)
if CITIES.has_key(key):
CITIES[key].append(entry)
else:
CITIES[key] = [entry]
line = __readline(fref)
def set_longitude(self, longitude=0.0):
"""
Set the longitude to be used in date calculations.
:param longitude: the longitude to set (- for west, + for east)(-180..180)
"""
l = mathutils.to_float(longitude, 0.0)
if l is not None:
l = mathutils.normalize_degrees(l, -180.0, 180.0)
self.longitude = l
def dms_from_dd(dd):
dd = mathutils.to_float(dd, None)
if dd is not None:
d = int(dd)
dm = abs(dd - d) * 60.0
m = int(dm + 0.0005)
s = mathutils.fix((dm - m) * 60.0, 2)
return d, m, s
return None
def convert(v, fr, to, defaultValue=None):
v = mathutils.to_float(v, defaultValue)
if fr == to:
return v
if fr not in UNITS:
raise ValueError("Invalid from type! Unknown type '{}'".format(fr))
if to not in UNITS:
raise ValueError("Invalid from type! Unknown type '{}'".format(to))
name = "{}_to_{}".format(fr, to)
func = getattr(sys.modules[__name__], name)
return func(v)
def to_day_of_week_from_julian(jd):
"""
Converts a julian to day of the week.
:param jd: julian
:return: day of week
"""
jul = mathutils.to_float(jd, None)
if jul is not None:
a = (jul + 1.5) / 7.0
day = mathutils.to_int(round((a - mathutils.to_int(a)) * 7.0))
return day
return None
def dd_from_dms(d, m, s):
d = mathutils.to_int(d, None)
m = mathutils.to_int(m, None)
s = mathutils.to_float(s, None)
if (d is not None) and (m is not None) and (s is not None):
if d < 0:
sgn = -1
else:
sgn = 1
dd = sgn * ((((s / 60.0) + float(m)) / 60.0) + float(abs(d)))
return dd
return None
def set_seconds(self, seconds=0.0):
"""
Set the seconds.
:param seconds: the seconds to set (0..59.99)
"""
s = mathutils.to_float(seconds, 0.0)
if s is not None:
if s < 0.0:
s = 0.0
if s > get_max_seconds():
s = get_max_seconds()
self.seconds = s
def hms_from_dh(dh):
"""
Converts decimal hours to a time tuple.
:param dh: decimal hours to convert
:return: time tuple (hours, mins, secs)
"""
dh = mathutils.to_float(dh, None)
if dh is not None:
h = int(dh)
dm = abs(dh - h) * 60.0
m = int(dm + 0.0005
) # add a tiny amount to make sure the minutes round properly
s = mathutils.fix((dm - m) * 60.0, 2)
return h, m, s
return None
def add_seconds(self, ds):
"""
Add a seconds delta to the date.
:param ds: seconds delta
"""
if self.seconds is not None:
self.seconds += mathutils.to_float(ds, 0.0)
dm = 0
while self.seconds < 1:
self.seconds += 60.0
dm -= 1
while self.seconds >= 60.0:
self.seconds -= 60.0
dm += 1
self.add_minutes(dm)
def validate_time(hours, minutes, seconds, mode=None):
"""
Validate the time.
:return: (hours, minutes, seconds[, mode]) or None
"""
hrs = mathutils.to_int(hours, None)
mns = mathutils.to_int(minutes, None)
scs = mathutils.to_float(seconds, None)
if (hrs is not None) and (mns is not None) and (scs is not None):
if (hrs >= 0) and (hrs < 24):
if (mns >= 0) and (mns < 60):
if (scs >= 0) and (scs < 60):
if mode is not None:
if mode in TIME_MODES:
return hrs, mns, scs, mode
else:
return hrs, mns, scs
return None
def dh_from_hms(hours, minutes, seconds):
"""
Converts a time to decimal hours.
:param hours: hours
:param minutes: minutes
:param seconds: seconds
:return: dh
"""
h = mathutils.to_int(hours, None)
m = mathutils.to_int(minutes, None)
s = mathutils.to_float(seconds, None)
if (h is not None) and (m is not None) and (s is not None):
if h < 0:
sgn = -1
else:
sgn = 1
return sgn * ((((s / 60.0) + m) / 60.0) + abs(h))
return None
def set_with_julian(self, jul, mode=TIME_MODE_UTC):
"""
Set date from a julian day.
:param jul: julian
:param mode: the time mode (default: 'utc')
"""
jul = mathutils.to_float(jul, None)
if jul is not None:
jd = 0.5 + jul
I = mathutils.to_int(jd)
F = jd - I
if I > 2229160:
A = mathutils.to_int((I - 1867216.25) / 36524.25)
B = I + 1 + A - mathutils.to_int(A / 4.0)
else:
B = I
C = B + 1524
D = mathutils.to_int((C - 122.1) / 365.25)
E = mathutils.to_int(365.25 * D)
G = mathutils.to_int((C - E) / 30.6001)
d = C - E + F - mathutils.to_int(30.6001 * G)
if G < 13.5:
mth = G - 1
else:
mth = G - 13
if mth > 2.5:
yr = D - 4716
else:
yr = D - 4715
day = mathutils.to_int(d)
h = (d - day) * 24
hrs, mns, scs = hms_from_dh(h)
self.set_year(yr)
self.set_month(mth)
self.set_day(day)
self.set_hours(hrs)
self.set_minutes(mns)
self.set_seconds(scs)
self.set_mode(mode)
def set_sec2(self, sec2):
s = 0
if sec2 is not None:
s = mathutils.to_float(sec2, 0.0)
self.sec2 = s
def set_sec1(self, sec1):
s = 0
if sec1 is not None:
s = mathutils.to_float(sec1, 0.0)
self.sec1 = s
def set_latitude(self, latitude):
l = mathutils.to_float(latitude, 0.0)
if l is not None:
l = mathutils.normalize_degrees(l, -90, 90.0)
self.latitude = l
def validate_hours(h, m, s):
if (h is not None) and (h == mathutils.to_int(h)) and (h > -24.0) and (h <= 24.0):
if (m is not None) and (m == mathutils.to_int(m)) and (m >= 0.0) and (m <= 59.0):
if (s is not None) and (s == mathutils.to_float(s)) and (s >= 0.0) and (s < 60.0):
return True
return False
def validate_degrees(d, m, s):
if (d is not None) and (d == mathutils.to_int(d)) and (d >= -360.0) and (d <= 360.0):
if (m is not None) and (m == mathutils.to_int(m)) and (m >= 0.0) and (m <= 59.0):
if (s is not None) and (s == mathutils.to_float(s)) and (s >= 0.0) and (s < 60.0):
return True
return False