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epicyon
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Code Issues 14 Releases Wiki Activity

Less square variance

main
Bob Mottram 2021-05-10 20:34:22 +01:00
parent ab600800f4
commit 75d1064143
1 changed files with 6 additions and 6 deletions
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12
city.py
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@ -85,7 +85,7 @@ def spoofGeolocation(baseDir: str,
if not os.path.isfile(locationsFilename):
locationsFilename = baseDir + '/locations.txt'
cityRadius = 0.1
variance = 0.001
varianceAtLocation = 0.0004
default_latitude = 51.8744
default_longitude = 0.368333
default_latdirection = 'N'
@ -128,15 +128,15 @@ def spoofGeolocation(baseDir: str,
# Get the position within the city, with some randomness added
latitude += \
distanceFromCityCenter * cityRadius * math.cos(angleRadians)
# add a small amount of variance around the location
fraction = randint(0, 100000) / 100000
latitude += (fraction * fraction * variance) - (variance / 2.0)
longitude += \
distanceFromCityCenter * cityRadius * math.sin(angleRadians)
# add a small amount of variance around the location
fraction = randint(0, 100000) / 100000
longitude += (fraction * fraction * variance) - (variance / 2.0)
distanceFromLocation = fraction * fraction * varianceAtLocation
fraction = randint(0, 100000) / 100000
angleFromLocation = fraction * 2 * math.pi
latitude += distanceFromLocation * math.cos(angleFromLocation)
longitude += distanceFromLocation * math.sin(angleFromLocation)
# gps locations aren't transcendental, so round to a fixed
# number of decimal places