def test_J2000T0AltAz_2():
class Test:
tt = 2458849.50000
ut1 = 0.5
loc = Topos('42.3583 N', '71.0636 W')
alt, az = transform.J2000ToAltAz(Angle(hours=12), Angle(degrees=45), Test(), loc)
assert alt.degrees != 0
assert az.degrees != 0
def test_J2000T0AltAz_1():
class Test:
tt = 2458849.50000
ut1 = 0.5
loc = Topos('42.3583 N', '71.0636 W')
alt, az = transform.J2000ToAltAz(180, 180, Test(), loc)
assert alt.degrees == 0
assert az.degrees == 0
def generateDSOPath(self,
ra=0,
dec=0,
timeJD=0,
location=None,
numberPoints=0,
duration=0,
timeShift=0):
"""
generateDSOPath calculates a list of model points along the desired path beginning
at ra, dec coordinates, which is in time duration hours long and consists of
numberPoints model points. TimeShift moves the pearl of points to an earlier or
later point in time.
:param ra:
:param dec:
:param timeJD:
:param location:
:param numberPoints:
:param duration:
:param timeShift:
:return: True for test purpose
"""
if numberPoints < 1:
return False
if duration == 0:
return False
if location is None:
return False
numberPoints = int(numberPoints)
self.clearBuildP()
for i in range(0, numberPoints):
startPoint = ra.hours - i * duration / numberPoints - timeShift
raCalc = skyfield.api.Angle(hours=startPoint)
az, alt = transform.J2000ToAltAz(raCalc, dec, timeJD, location)
if alt.degrees > 0:
self.addBuildP((alt.degrees, az.degrees % 360))
return True