FGFS-4.1/pyModeS
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Errors on decoding angles in EHS messages

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This commit is contained in:
Xavier Olive 2017-07-25 19:08:56 +02:00
parent 98e5d81ae1
commit 70154e93d5
1 changed files with 5 additions and 3 deletions
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8
pyModeS/ehs.py
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@ -532,7 +532,7 @@ def roll50(msg):
sign = int(d[1]) # 1 -> left wing down
value = util.bin2int(d[2:11]) * 45.0 / 256.0 # degree
angle = -1 * value if sign else value
angle = value - 90.0 if sign else value
return round(angle, 1)
@ -552,7 +552,8 @@ def trk50(msg):
sign = int(d[12]) # 1 -> west
value = util.bin2int(d[13:23]) * 90.0 / 512.0 # degree
angle = 360 - value if sign else value
angle = value - 180 if sign else value
angle = angle + 360 if angle < 0. else angle
return round(angle, 1)
@ -821,7 +822,8 @@ def hdg60(msg):
sign = int(d[1]) # 1 -> west
value = util.bin2int(d[2:12]) * 90 / 512.0 # degree
hdg = 360 - value if sign else value
hdg = value - 180 if sign else value
hdg = hdg + 360 if hdg < 0. else hdg
return round(hdg, 1)