Remove rounding in pyModeS (#147)

* Update bds50.py: round roll to 3 places instead of 1

Provide a bit more detail for smaller roll angles.

* remove rounding

* update poetry

* update poetry

* update test

* update bds06

* update workflow

---------

Co-authored-by: Junzi Sun <junzisun@gmail.com>

pyModeS/decoder/bds/bds05.py

@@ -82,7 +82,7 @@ def airborne_position(
     if lon > 180:
         lon = lon - 360
 
-    return round(lat, 5), round(lon, 5)
+    return lat, lon
 
 
 def airborne_position_with_ref(
@@ -129,7 +129,7 @@ def airborne_position_with_ref(
 
     lon = d_lon * (m + cprlon)
 
-    return round(lat, 5), round(lon, 5)
+    return lat, lon
 
 
 def altitude(msg: str) -> None | int:

pyModeS/decoder/bds/bds06.py

@@ -19,7 +19,6 @@ def surface_position(
     lat_ref: float,
     lon_ref: float,
 ) -> None | tuple[float, float]:
-
     """Decode surface position from a pair of even and odd position message,
     the lat/lon of receiver must be provided to yield the correct solution.
 
@@ -92,7 +91,7 @@ def surface_position(
     imin = min(range(4), key=dls.__getitem__)
     lon = lons[imin]
 
-    return round(lat, 5), round(lon, 5)
+    return lat, lon
 
 
 def surface_position_with_ref(
@@ -139,12 +138,12 @@ def surface_position_with_ref(
 
     lon = d_lon * (m + cprlon)
 
-    return round(lat, 5), round(lon, 5)
+    return lat, lon
 
 
 def surface_velocity(
     msg: str, source: bool = False
-) -> tuple[None | float, float, int, str]:
+) -> tuple[None | float, None | float, int, str]:
     """Decode surface velocity from a surface position message
 
     Args:
@@ -173,7 +172,6 @@ def surface_velocity(
     trk_status = int(mb[12])
     if trk_status == 1:
         trk = common.bin2int(mb[13:20]) * 360 / 128
-        trk = round(trk, 1)
     else:
         trk = None
 

pyModeS/decoder/bds/bds09.py

@@ -48,7 +48,6 @@ def airborne_velocity(
     spd: None | float
 
     if subtype in (1, 2):
-
         v_ew = common.bin2int(mb[14:24])
         v_ns = common.bin2int(mb[25:35])
 
@@ -77,7 +76,7 @@ def airborne_velocity(
             trk = math.degrees(trk)  # convert to degrees
             trk = trk if trk >= 0 else trk + 360  # no negative val
 
-            trk_or_hdg = round(trk, 2)
+            trk_or_hdg = trk
 
         spd_type = "GS"
         dir_type = "TRUE_NORTH"
@@ -87,7 +86,6 @@ def airborne_velocity(
             hdg = None
         else:
             hdg = common.bin2int(mb[14:24]) / 1024 * 360.0
-            hdg = round(hdg, 2)
 
         trk_or_hdg = hdg
 

pyModeS/decoder/bds/bds44.py

@@ -72,7 +72,7 @@ def wind44(msg: str) -> Tuple[Optional[int], Optional[float]]:
     speed = common.bin2int(d[5:14])  # knots
     direction = common.bin2int(d[14:23]) * 180 / 256  # degree
 
-    return round(speed, 0), round(direction, 1)
+    return speed, direction
 
 
 def temp44(msg: str) -> Tuple[float, float]:
@@ -96,10 +96,8 @@ def temp44(msg: str) -> Tuple[float, float]:
         value = value - 1024
 
     temp = value * 0.25  # celsius
-    temp = round(temp, 2)
 
     temp_alternative = value * 0.125  # celsius
-    temp_alternative = round(temp_alternative, 3)
 
     return temp, temp_alternative
 
@@ -140,7 +138,7 @@ def hum44(msg: str) -> Optional[float]:
 
     hm = common.bin2int(d[50:56]) * 100 / 64  # %
 
-    return round(hm, 1)
+    return hm
 
 
 def turb44(msg: str) -> Optional[int]:

pyModeS/decoder/bds/bds45.py

@@ -171,7 +171,6 @@ def temp45(msg: str) -> Optional[float]:
         value = value - 512
 
     temp = value * 0.25  # celsius
-    temp = round(temp, 1)
 
     return temp
 

pyModeS/decoder/bds/bds50.py

@@ -81,7 +81,7 @@ def roll50(msg: str) -> Optional[float]:
         value = value - 512
 
     angle = value * 45 / 256  # degree
-    return round(angle, 1)
+    return angle
 
 
 def trk50(msg: str) -> Optional[float]:
@@ -110,7 +110,7 @@ def trk50(msg: str) -> Optional[float]:
     if trk < 0:
         trk = 360 + trk
 
-    return round(trk, 3)
+    return trk
 
 
 def gs50(msg: str) -> Optional[float]:
@@ -154,7 +154,7 @@ def rtrk50(msg: str) -> Optional[float]:
         value = value - 512
 
     angle = value * 8 / 256  # degree / sec
-    return round(angle, 3)
+    return angle
 
 
 def tas50(msg: str) -> Optional[float]:

pyModeS/decoder/bds/bds53.py

@@ -86,7 +86,7 @@ def hdg53(msg: str) -> Optional[float]:
     if hdg < 0:
         hdg = 360 + hdg
 
-    return round(hdg, 3)
+    return hdg
 
 
 def ias53(msg: str) -> Optional[float]:
@@ -122,7 +122,7 @@ def mach53(msg: str) -> Optional[float]:
         return None
 
     mach = common.bin2int(d[24:33]) * 0.008
-    return round(mach, 3)
+    return mach
 
 
 def tas53(msg: str) -> Optional[float]:
@@ -140,7 +140,7 @@ def tas53(msg: str) -> Optional[float]:
         return None
 
     tas = common.bin2int(d[34:46]) * 0.5  # kts
-    return round(tas, 1)
+    return tas
 
 
 def vr53(msg: str) -> Optional[int]:

pyModeS/decoder/bds/bds62.py

@@ -200,7 +200,6 @@ def selected_heading(msg: str) -> None | float:
     else:
         hdg_sign = int(mb[30])
         hdg = (hdg_sign + 1) * common.bin2int(mb[31:39]) * (180 / 256)
-        hdg = round(hdg, 2)
 
     return hdg
 

pyModeS/decoder/flarm/decode.pyx

@@ -130,12 +130,12 @@ def flarm(long timestamp, str msg, float refLat, float refLon, **kwargs):
     return dict(
         timestamp=timestamp,
         icao24=icao24,
-        latitude=round(lat * 1e-7, 6),
-        longitude=round(lon * 1e-7, 6),
+        latitude=lat * 1e-7,
+        longitude=lon * 1e-7,
         geoaltitude=altitude,
         vertical_speed=raw_vs * mult_factor / 10,
-        groundspeed=round(speed),
-        track=round(heading4 - 4 * turningRate(heading4, heading8) / 4),
+        groundspeed=speed,
+        track=heading4 - 4 * turningRate(heading4, heading8) / 4,
         type=AIRCRAFT_TYPES[aircraft_type],
         sensorLatitude=refLat,
         sensorLongitude=refLon,