module GeoRecord
+ # This scaling factor is used to convert between the float lat/lon that is
+ # returned by the API, and the integer lat/lon equivalent that is stored in
+ # the database.
+ SCALE = 10000000
+
def self.included(base)
base.extend(ClassMethods)
- end
-
- def before_save
- self.update_tile
+ base.before_save :update_tile
end
# Is this node within -90 >= latitude >= 90 and -180 >= longitude >= 180
end
def lat=(l)
- self.latitude = (l * 10000000).round
+ self.latitude = (l * SCALE).round
end
def lon=(l)
- self.longitude = (l * 10000000).round
+ self.longitude = (l * SCALE).round
end
# Return WGS84 latitude
def lat
- return self.latitude.to_f / 10000000
+ return self.latitude.to_f / SCALE
end
# Return WGS84 longitude
def lon
- return self.longitude.to_f / 10000000
+ return self.longitude.to_f / SCALE
end
- # Potlatch projections
- def lon_potlatch(baselong,masterscale)
- (self.lon-baselong)*masterscale
- end
-
- def lat_potlatch(basey,masterscale)
- -(lat2y(self.lat)-basey)*masterscale
- end
-
private
def lat2y(a)