def test_conversation_bijection(self, l):
equ = set()
hor = set()
for a in range(-180, 180, 4):
for d in range(-89, 89, 4):
e = Equatorial(a, d)
h = e.to_horizontal_with_latitude(l)
equ.add(e)
hor.add(h)
self.assertEqual(len(equ), len(hor))
def test_init(self, a, d):
v = Equatorial(a, d)
self.assertEqual(cos(radians(a)),
cos(radians(v.a)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(a)),
sin(radians(v.a)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(d)),
sin(radians(v.d)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(d)),
sin(radians(v.d)),
epsilon=EquatorialTest.EPS)
def test_apply_time_rotation(self, s, a, d):
v = Equatorial(a, d).apply_time_rotation(s)
a += s
self.assertEqual(cos(radians(a)),
cos(radians(v.a)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(a)),
sin(radians(v.a)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(d)),
sin(radians(v.d)),
epsilon=EquatorialTest.EPS)
self.assertEqual(sin(radians(d)),
sin(radians(v.d)),
epsilon=EquatorialTest.EPS)
def _draw_point_and_direction(self, pos: Equatorial, color, size,
apply_latitude):
self.settings.apply_color(color, self._painter)
if apply_latitude:
horizontal = pos.to_horizontal_with_latitude(
self.watcher.position.h)
elif isinstance(pos, Equatorial):
horizontal = Horizontal(pos.a, pos.d)
else:
horizontal = pos
p_lat = self.project_star(horizontal, Star(pos, '', size, '', ''),
True)
if p_lat is not None and p_lat.in_eye:
self._draw_object(p_lat, False)
self._painter.drawLine(p_lat.cx, p_lat.cy, self.centre[0],
self.centre[1])
def parse_star(self, pair) -> Star:
try:
parsed = self._regexp.match(pair[0].replace('\n', '')).groupdict()
a_h, a_m, a_s = extract_nums(parsed, 'alf', 3)
d_d, d_m, d_s = extract_nums(parsed, 'del', 3)
a = time_to_degree(a_h, a_m, a_s)
d = dtime_to_degree(d_d, d_m, d_s)
cls = parsed['cls'] if parsed['cls'] in SPECTRAL_MAP.keys() else ''
name = parsed['name']
if name is None:
name = ''
if name[0:3] in EN2LAT_MAP:
name = EN2LAT_MAP[name]
return Star(Equatorial(a, d), pair[1], float(parsed['mag']), cls,
name)
except Exception as ex:
print('Can`t parse line ({}) in {}: {}'.format(
pair[0].rstrip('\n'), pair[1], ex))
def setUp(self):
self.v = Equatorial(3, 4)
self.a = Equatorial(1, 2)
def to_horizontal(self, equ: Equatorial):
return equ.to_horizontal_with_time(self.star_time.total_degree % 360,
self.position.h)
def _draw_see_points(self):
self._draw_point_and_direction(self.watcher.position, 'up', -1, False)
self._draw_point_and_direction(Equatorial(0, 90), 'up_border', -1,
False)
self._draw_point_and_direction(Equatorial(0, -90), 'up_border', -1,
False)
def _draw_compass(self):
self._draw_point_and_direction(Equatorial(0, 90), 'north', -3, True)
self._draw_point_and_direction(Equatorial(0, -90), 'south', -3, True)