FGFS-4.1/gr-air-modes
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First stab at using real exception handling instead of returning [None] everywhere

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This commit is contained in:
Nick Foster
2012-06-19 15:43:43 -07:00
parent e3ac472a1a
commit db62aaf399
10 changed files with 148 additions and 94 deletions
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16
python/modes_parse.py
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@@ -25,6 +25,7 @@ from string import split, join
from altitude import decode_alt
import cpr
import math
from modes_exceptions import *
class modes_parse:
def __init__(self, mypos):
@@ -32,9 +33,6 @@ class modes_parse:
self.cpr = cpr.cpr_decoder(self.my_location)
def parse0(self, shortdata):
# shortdata = long(shortdata, 16)
#parity = long(parity)
vs = bool(shortdata >> 26 & 0x1) #ground sensor -- airborne when 0
cc = bool(shortdata >> 25 & 0x1) #crosslink capability, binary
sl = shortdata >> 21 & 0x07 #operating sensitivity of onboard TCAS system. 0 means no TCAS sensitivity reported, 1-7 give TCAS sensitivity
@@ -46,7 +44,6 @@ class modes_parse:
return [vs, cc, sl, ri, altitude]
def parse4(self, shortdata):
# shortdata = long(shortdata, 16)
fs = shortdata >> 24 & 0x07 #flight status: 0 is airborne normal, 1 is ground normal, 2 is airborne alert, 3 is ground alert, 4 is alert SPI, 5 is normal SPI
dr = shortdata >> 19 & 0x1F #downlink request: 0 means no req, bit 0 is Comm-B msg rdy bit, bit 1 is TCAS info msg rdy, bit 2 is Comm-B bcast #1 msg rdy, bit2+bit0 is Comm-B bcast #2 msg rdy,
#bit2+bit1 is TCAS info and Comm-B bcast #1 msg rdy, bit2+bit1+bit0 is TCAS info and Comm-B bcast #2 msg rdy, 8-15 N/A, 16-31 req to send N-15 segments
@@ -59,7 +56,6 @@ class modes_parse:
def parse5(self, shortdata):
# shortdata = long(shortdata, 16)
fs = shortdata >> 24 & 0x07 #flight status: 0 is airborne normal, 1 is ground normal, 2 is airborne alert, 3 is ground alert, 4 is alert SPI, 5 is normal SPI
dr = shortdata >> 19 & 0x1F #downlink request: 0 means no req, bit 0 is Comm-B msg rdy bit, bit 1 is TCAS info msg rdy, bit 2 is Comm-B bcast #1 msg rdy, bit2+bit0 is Comm-B bcast #2 msg rdy,
#bit2+bit1 is TCAS info and Comm-B bcast #1 msg rdy, bit2+bit1+bit0 is TCAS info and Comm-B bcast #2 msg rdy, 8-15 N/A, 16-31 req to send N-15 segments
@@ -68,7 +64,6 @@ class modes_parse:
return [fs, dr, um]
def parse11(self, shortdata, ecc):
# shortdata = long(shortdata, 16)
interrogator = ecc & 0x0F
ca = shortdata >> 13 & 0x3F #capability
@@ -114,9 +109,6 @@ class modes_parse:
msg = ""
for i in range(0, 8):
msg += self.charmap( longdata >> (42-6*i) & 0x3F)
#retstr = "Type 17 subtype 04 (ident) from " + "%x" % icao24 + " with data " + msg
return (msg, catstring)
def charmap(self, d):
@@ -155,8 +147,6 @@ class modes_parse:
encoded_lat = (longdata >> 17) & 0x1FFFF
cpr_format = (longdata >> 34) & 1
# enc_alt = (longdata >> 36) & 0x0FFF
altitude = 0
[decoded_lat, decoded_lon, rnge, bearing] = self.cpr.decode(icao24, encoded_lat, encoded_lon, cpr_format, 1)
@@ -189,8 +179,6 @@ class modes_parse:
if heading < 0:
heading += 360
#retstr = "Type 17 subtype 09-0 (track report) from " + "%x" % icao24 + " with velocity " + "%.0f" % velocity + "kt heading " + "%.0f" % heading + " VS " + "%.0f" % vert_spd
return [velocity, heading, vert_spd, turn_rate]
def parseBDS09_1(self, shortdata, longdata):
@@ -232,7 +220,5 @@ class modes_parse:
if heading < 0:
heading += 360
#retstr = "Type 17 subtype 09-1 (track report) from " + "%x" % icao24 + " with velocity " + "%.0f" % velocity + "kt heading " + "%.0f" % heading + " VS " + "%.0f" % vert_spd
return [velocity, heading, vert_spd]