+ if self.visible?
+ el1['lat'] = self.lat.to_s
+ el1['lon'] = self.lon.to_s
+ end
+
+ el1['changeset'] = self.changeset.id.to_s
+ if self.changeset.user.data_public?
+ el1['user'] = self.changeset.user.display_name
+ el1['uid'] = self.changeset.user.id.to_s
+ end
+