FGFS-4.1/pyModeS
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minor update

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This commit is contained in:
junzis 2017-07-21 16:02:40 +02:00
parent 0e29a4d18a
commit 27daf52850
2 changed files with 3 additions and 3 deletions
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4
pyModeS/adsb.py
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@ -678,9 +678,9 @@ def altitude_diff(msg):
msgbin = util.hex2bin(msg)
sign = -1 if int(msgbin[80]) else 1
value = util.bin2int(msgbin[81:88]) * 25
value = util.bin2int(msgbin[81:88])
if value == 0 or value == 127:
return None
else:
return sign * value
return sign * (value - 1) * 25 # in ft.

2
tests/test_adsb.py
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@ -61,7 +61,7 @@ def test_adsb_velocity():
assert vgs == (159, 182.9, -832, 'GS')
assert vas == (376, 244.0, -2304, 'AS')
assert vgs_surface == (19.0, 42.2, 0 , 'GS')
assert adsb.altitude_diff('8D485020994409940838175B284F') == 575
assert adsb.altitude_diff('8D485020994409940838175B284F') == 550
def test_nic():