f07819d81a
Use a preinitializer to load the settings from application.yml so that they are available as early as possible. All settings can also be overridden using environment variables. The ad-hoc settins in environment.rb are then moved to this new system so we have one consistent location for settings.
32 lines
1.4 KiB
Ruby
32 lines
1.4 KiB
Ruby
module MapBoundary
|
|
# Take an array of length 4, and return the min_lon, min_lat, max_lon and
|
|
# max_lat within their respective boundaries.
|
|
def sanitise_boundaries(bbox)
|
|
min_lon = [[bbox[0].to_f,-180].max,180].min
|
|
min_lat = [[bbox[1].to_f,-90].max,90].min
|
|
max_lon = [[bbox[2].to_f,+180].min,-180].max
|
|
max_lat = [[bbox[3].to_f,+90].min,-90].max
|
|
return min_lon, min_lat, max_lon, max_lat
|
|
end
|
|
|
|
def check_boundaries(min_lon, min_lat, max_lon, max_lat)
|
|
# check the bbox is sane
|
|
unless min_lon <= max_lon
|
|
raise OSM::APIBadBoundingBox.new("The minimum longitude must be less than the maximum longitude, but it wasn't")
|
|
end
|
|
unless min_lat <= max_lat
|
|
raise OSM::APIBadBoundingBox.new("The minimum latitude must be less than the maximum latitude, but it wasn't")
|
|
end
|
|
unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
|
|
# Due to sanitize_boundaries, it is highly unlikely we'll actually get here
|
|
raise OSM::APIBadBoundingBox.new("The latitudes must be between -90 and 90, and longitudes between -180 and 180")
|
|
end
|
|
|
|
# check the bbox isn't too large
|
|
requested_area = (max_lat-min_lat)*(max_lon-min_lon)
|
|
if requested_area > MAX_REQUEST_AREA
|
|
raise OSM::APIBadBoundingBox.new("The maximum bbox size is " + MAX_REQUEST_AREA.to_s +
|
|
", and your request was too large. Either request a smaller area, or use planet.osm")
|
|
end
|
|
end
|
|
end
|