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engine: add disp flag

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Oliver Gaskell 2025-11-02 11:02:05 +00:00
parent be46d2e059
commit 2e83c934e9
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GPG key ID: F971A08925FCC0AD
1 changed files with 5 additions and 5 deletions
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engine.py
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@ -96,13 +96,13 @@ def trilat_error(stations: list[StationT], position: tuple[float, float]) -> flo
return sum(sq_errors) / len(sq_errors)
def trilaterate(stations: list[StationT]) -> tuple[float, float]:
def trilaterate(stations: list[StationT], disp: bool = False) -> tuple[float, float]:
"""Trilaterate a position, given a list of stations.
Each station is of the format ((lat, lon), distance).
"""
return scipy.optimize.fmin(lambda pos: trilat_error(stations, pos), (0., 0.))
return scipy.optimize.fmin(lambda pos: trilat_error(stations, pos), (0., 0.), disp=disp)
def encode(location: tuple[float, float]) -> EncodedLocation:
@ -131,7 +131,7 @@ def encode(location: tuple[float, float]) -> EncodedLocation:
return result
def decode(location: EncodedLocation) -> tuple[float, float]:
def decode(location: EncodedLocation, disp: bool = False) -> tuple[float, float]:
"""Decode into a location."""
# form the distances matrix
@ -161,7 +161,7 @@ def decode(location: EncodedLocation) -> tuple[float, float]:
# part 2: trilaterate
stations: list[StationT] = [(greggs_raw[g], location[i][0]) for i, g in enumerate(closest_greggs)]
return trilaterate(stations)
return trilaterate(stations, disp=disp)
def format_dist(dist: float) -> str:
@ -199,7 +199,7 @@ def main():
parsed = parse_location(formatted)
print("Parsed:", parsed, end="\n\n")
decoded = decode(encoded)
decoded = decode(encoded, disp=True)
print("Decoded:", decoded, end="\n\n")
error = spherical_dist(np.array(coords), np.array(decoded))