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fix error in surface position with reference

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Junzi Sun
2016-11-10 13:45:36 +01:00
parent 220b8e9716
commit b9c6db6f65
2 changed files with 4 additions and 4 deletions
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pyModeS/adsb.py
+2 -2
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@@ -427,9 +427,9 @@ def surface_position_with_ref(msg, lat_ref, lon_ref):
ni = _cprNL(lat) - i ni = _cprNL(lat) - i
if ni > 0: if ni > 0:
d_lon = 360.0 / ni d_lon = 90.0 / ni
else: else:
d_lon = 360.0 d_lon = 90.0
m = util.floor(lon_ref / d_lon) \ m = util.floor(lon_ref / d_lon) \
+ util.floor(0.5 + ((lon_ref % d_lon) / d_lon) - cprlon) + util.floor(0.5 + ((lon_ref % d_lon) / d_lon) - cprlon)
tests/test_adsb.py
+2 -2
View File
@@ -32,9 +32,9 @@ def test_adsb_airborne_position_with_ref():
def test_adsb_surface_position_with_ref(): def test_adsb_surface_position_with_ref():
pos = adsb.surface_position_with_ref("8FC8200A3AB8F5F893096B22B4A8", pos = adsb.surface_position_with_ref("8FC8200A3AB8F5F893096B000000",
-43.5, 172.5) -43.5, 172.5)
assert pos == (-43.48564, 175.87195) assert pos == (-43.48564, 172.53942)
def test_adsb_surface_position(): def test_adsb_surface_position():