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
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
- end
-
- # Potlatch projections
- def lon_potlatch(baselong,masterscale)
- (self.lon-baselong)*masterscale
+ return self.longitude.to_f / SCALE
end
- def lat_potlatch(basey,masterscale)
- -(lat2y(self.lat)-basey)*masterscale
+ # Generic checks that are run for the updates and deletes of
+ # node, ways and relations. This code is here to avoid duplication,
+ # and allow the extention of the checks without having to modify the
+ # code in 6 places for all the updates and deletes. Some of these tests are
+ # needed for creates, but are currently not run :-(
+ # This will throw an exception if there is an inconsistency
+ def check_consistency(old, new, user)
+ if new.version != old.version
+ raise OSM::APIVersionMismatchError.new(new.version, old.version)
+ elsif new.changeset.nil?
+ raise OSM::APIChangesetMissingError.new
+ elsif new.changeset.empty?
+ raise OSM::APIChangesetMissingError.new
+ elsif new.changeset.user_id != user.id
+ raise OSM::APIUserChangesetMismatchError.new
+ elsif not new.changeset.is_open?
+ raise OSM::APIChangesetAlreadyClosedError.new
+ end
end
-
private
def lat2y(a)