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Update geocoding_service.rb (#147)

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Aram 2025-07-24 19:48:57 -07:00 • committed by GitHub
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1 changed files with 4 additions and 4 deletions
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app/services/geocoding_service.rb
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@ -53,10 +53,10 @@ module GeocodingService
def fuzz_coordinates(lat, lon)
# Add random offset within 5 mile radius, with minimum of 3 miles for privacy
# 1 degree latitude ≈ 69 miles, so 5 miles ≈ 0.0725 degrees
# 1 degree longitude varies by latitude, but at ~45°N ≈ 49 miles, so 5 miles ≈ 0.102 degrees
max_lat_offset = 0.0725
max_lon_offset = 0.102 * Math.cos(lat * Math::PI / 180)
# 1 degree latitude ≈ 69 miles, so 15 miles ≈ 0.2175 degrees
# 1 degree longitude varies by latitude, but at ~45°N ≈ 49 miles, so 15 miles ≈ 0.306 degrees
max_lat_offset = 0.2175
max_lon_offset = 0.306 * Math.cos(lat * Math::PI / 180)
# Generate random angle and distance within the annular ring (3-5 miles)
angle = rand * 2 * Math::PI