def go_back(*ignore):
"""Return the map view to where the user last set it."""
history = list(Gst.get('history'))
lat, lon, zoom = history.pop()
if valid_coords(lat, lon):
MapView.set_zoom_level(zoom)
MapView.center_on(lat, lon)
if len(history) > 1:
Gst.set_history(history)
else:
Gst.reset('history')
def go_back(button, view):
"""Return the map view to where the user last set it."""
history = list(gst.get('history'))
lat, lon, zoom = history.pop()
if valid_coords(lat, lon):
view.set_zoom_level(zoom)
view.center_on(lat, lon)
if len(history) > 1:
gst.set_history(history)
else:
gst.reset('history')
map_view.emit('animation-completed')
def move_by_arrow_keys(accel_group, acceleratable, keyval, modifier):
"""Move the map view by 5% of its length in the given direction."""
key, view = Gdk.keyval_name(keyval), map_view
factor = (0.45 if key in ('Up', 'Left') else 0.55)
lat = view.get_center_latitude()
lon = view.get_center_longitude()
if key in ('Up', 'Down'):
lat = view.y_to_latitude(view.get_height() * factor)
else:
lon = view.x_to_longitude(view.get_width() * factor)
if valid_coords(lat, lon):
view.center_on(lat, lon)
def go_back(button, view):
"""Return the map view to where the user last set it."""
history = list(gst.get('history'))
lat, lon, zoom = history.pop()
if valid_coords(lat, lon):
view.set_zoom_level(zoom)
view.center_on(lat, lon)
if len(history) > 1:
gst.set_history(history)
else:
gst.reset('history')
map_view.emit('animation-completed')
def move_by_arrow_keys(accel_group, acceleratable, keyval, modifier):
"""Move the map view by 5% of its length in the given direction."""
key, view = Gdk.keyval_name(keyval), map_view
factor = (0.45 if key in ('Up', 'Left') else 0.55)
lat = view.get_center_latitude()
lon = view.get_center_longitude()
if key in ('Up', 'Down'):
lat = view.y_to_latitude(view.get_height() * factor)
else:
lon = view.x_to_longitude(view.get_width() * factor)
if valid_coords(lat, lon):
view.center_on(lat, lon)
def test_gps_math(self):
"""Test coordinate conversion functions."""
rats_to_fracs = lambda rats: [Fraction(rat.to_float()) for rat in rats]
# Really important that this method is bulletproof
self.assertFalse(valid_coords(None, None))
self.assertFalse(valid_coords('', ''))
self.assertFalse(valid_coords(True, True))
self.assertFalse(valid_coords(False, False))
self.assertFalse(valid_coords(45, 270))
self.assertFalse(valid_coords(100, 50))
self.assertFalse(valid_coords([], 50))
self.assertFalse(valid_coords(45, {'grunt':42}))
self.assertFalse(valid_coords(self, 50))
self.assertFalse(valid_coords(45, valid_coords))
self.assertFalse(valid_coords("ya", "dun goofed"))
# St. John's broke the math. I'm not sure why.
# Seriously. Revert commit 362dd6eb and watch this explode.
stjohns = Coordinates()
stjohns.latitude = 47.56494
stjohns.longitude = -52.70931
stjohns.lookup_geoname()
self.assertEqual(stjohns.city, "St. John's")
# Pick 100 random coordinates on the globe, convert them from decimal
# to sexagesimal and then back, and ensure that they are always equal.
for _ in range(100):
# Oh, and test altitudes too
altitude = round(random_coord(1000), 6)
fraction = float_to_rational(altitude)
self.assertAlmostEqual(
abs(altitude),
fraction.numerator / fraction.denominator,
3
)
decimal_lat = round(random_coord(80), 6)
decimal_lon = round(random_coord(180), 6)
self.assertTrue(valid_coords(decimal_lat, decimal_lon))
dms_lat = decimal_to_dms(decimal_lat)
dms_lon = decimal_to_dms(decimal_lon)
self.assertEqual(len(dms_lat), 3)
self.assertEqual(
dms_lat[0].numerator,
floor(abs(decimal_lat))
)
self.assertEqual(len(dms_lon), 3)
self.assertEqual(
dms_lon[0].numerator,
floor(abs(decimal_lon))
)
self.assertAlmostEqual(
decimal_lat,
dms_to_decimal(*rats_to_fracs(dms_lat) + ['N' if decimal_lat >= 0 else 'S']),
10 # equal to 10 places
)
self.assertAlmostEqual(
decimal_lon,
dms_to_decimal(*rats_to_fracs(dms_lon) + ['E' if decimal_lon >= 0 else 'W']),
10 # equal to 10 places
)
def test_gps_math(self):
"""Test coordinate conversion functions."""
rats_to_fracs = lambda rats: [Fraction(rat.to_float()) for rat in rats]
# Really important that this method is bulletproof
self.assertFalse(valid_coords(None, None))
self.assertFalse(valid_coords('', ''))
self.assertFalse(valid_coords(True, True))
self.assertFalse(valid_coords(False, False))
self.assertFalse(valid_coords(45, 270))
self.assertFalse(valid_coords(100, 50))
self.assertFalse(valid_coords([], 50))
self.assertFalse(valid_coords(45, {'grunt':42}))
self.assertFalse(valid_coords(self, 50))
self.assertFalse(valid_coords(45, valid_coords))
self.assertFalse(valid_coords("ya", "dun goofed"))
# St. John's broke the math. I'm not sure why.
# Seriously. Revert commit 362dd6eb and watch this explode.
stjohns = Coordinates()
stjohns.latitude = 47.56494
stjohns.longitude = -52.70931
stjohns.lookup_geoname()
self.assertEqual(stjohns.city, "St. John's")
# Pick 100 random coordinates on the globe, convert them from decimal
# to sexagesimal and then back, and ensure that they are always equal.
for i in range(100):
# Oh, and test altitudes too
altitude = round(random_coord(1000), 6)
fraction = float_to_rational(altitude)
self.assertAlmostEqual(
abs(altitude),
fraction.numerator / fraction.denominator,
3
)
decimal_lat = round(random_coord(80), 6)
decimal_lon = round(random_coord(180), 6)
self.assertTrue(valid_coords(decimal_lat, decimal_lon))
dms_lat = decimal_to_dms(decimal_lat)
dms_lon = decimal_to_dms(decimal_lon)
self.assertEqual(len(dms_lat), 3)
self.assertEqual(
dms_lat[0].numerator,
floor(abs(decimal_lat))
)
self.assertEqual(len(dms_lon), 3)
self.assertEqual(
dms_lon[0].numerator,
floor(abs(decimal_lon))
)
self.assertAlmostEqual(
decimal_lat,
dms_to_decimal(*rats_to_fracs(dms_lat) + ['N' if decimal_lat >= 0 else 'S']),
10 # equal to 10 places
)
self.assertAlmostEqual(
decimal_lon,
dms_to_decimal(*rats_to_fracs(dms_lon) + ['E' if decimal_lon >= 0 else 'W']),
10 # equal to 10 places
)
