X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/4d47cff5e1d359fa27c5c46d2706faae39a3eacc..7b05c1c060f3f85f47413ec7db984180514d3ba6:/lib/bounding_box.rb?ds=sidebyside diff --git a/lib/bounding_box.rb b/lib/bounding_box.rb index 1350d69ba..462f45a9f 100644 --- a/lib/bounding_box.rb +++ b/lib/bounding_box.rb @@ -39,19 +39,19 @@ class BoundingBox if bbox.complete? if bbox.min_lon < min_lon @min_lon = [-SCALED_LON_LIMIT, - bbox.min_lon + margin * (min_lon - max_lon)].max + bbox.min_lon + (margin * (min_lon - max_lon))].max end if bbox.min_lat < min_lat @min_lat = [-SCALED_LAT_LIMIT, - bbox.min_lat + margin * (min_lat - max_lat)].max + bbox.min_lat + (margin * (min_lat - max_lat))].max end if bbox.max_lon > max_lon @max_lon = [+SCALED_LON_LIMIT, - bbox.max_lon + margin * (max_lon - min_lon)].min + bbox.max_lon + (margin * (max_lon - min_lon))].min end if bbox.max_lat > max_lat @max_lat = [+SCALED_LAT_LIMIT, - bbox.max_lat + margin * (max_lat - min_lat)].min + bbox.max_lat + (margin * (max_lat - min_lat))].min end end self @@ -63,8 +63,8 @@ class BoundingBox raise OSM::APIBadBoundingBox, "The minimum latitude must be less than the maximum latitude, but it wasn't" if min_lat > max_lat if min_lon < -LON_LIMIT || min_lat < -LAT_LIMIT || max_lon > +LON_LIMIT || max_lat > +LAT_LIMIT - raise OSM::APIBadBoundingBox, "The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}," \ - " and longitudes between #{-LON_LIMIT} and #{LON_LIMIT}" + raise OSM::APIBadBoundingBox, "The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}, " \ + "and longitudes between #{-LON_LIMIT} and #{LON_LIMIT}" end self end @@ -88,6 +88,14 @@ class BoundingBox end end + def linear_size + if complete? + (max_lon - min_lon) + (max_lat - min_lat) + else + 0 + end + end + def complete? to_a.exclude?(nil) end @@ -109,16 +117,16 @@ class BoundingBox end def slippy_width(zoom) - width * 256.0 * 2.0**zoom / 360.0 + width * 256.0 * (2.0**zoom) / 360.0 end def slippy_height(zoom) min = min_lat * Math::PI / 180.0 max = max_lat * Math::PI / 180.0 - Math.log((Math.tan(max) + 1.0 / Math.cos(max)) / - (Math.tan(min) + 1.0 / Math.cos(min))) * - (128.0 * 2.0**zoom / Math::PI) + Math.log((Math.tan(max) + (1.0 / Math.cos(max))) / + (Math.tan(min) + (1.0 / Math.cos(min)))) * + (128.0 * (2.0**zoom) / Math::PI) end # there are two forms used for bounds with and without an underscore, @@ -157,14 +165,14 @@ class BoundingBox private def from_bbox_array(bbox_array) - raise OSM::APIBadUserInput, "The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat" unless bbox_array + raise OSM::APIBadUserInput, "The parameter bbox must be of the form min_lon,min_lat,max_lon,max_lat" unless bbox_array # Take an array of length 4, create a bounding box with min_lon, min_lat, max_lon and # max_lat within their respective boundaries. - min_lon = [[bbox_array[0].to_f, -LON_LIMIT].max, +LON_LIMIT].min - min_lat = [[bbox_array[1].to_f, -LAT_LIMIT].max, +LAT_LIMIT].min - max_lon = [[bbox_array[2].to_f, +LON_LIMIT].min, -LON_LIMIT].max - max_lat = [[bbox_array[3].to_f, +LAT_LIMIT].min, -LAT_LIMIT].max + min_lon = bbox_array[0].to_f.clamp(-LON_LIMIT, +LON_LIMIT) + min_lat = bbox_array[1].to_f.clamp(-LAT_LIMIT, +LAT_LIMIT) + max_lon = bbox_array[2].to_f.clamp(-LON_LIMIT, +LON_LIMIT) + max_lat = bbox_array[3].to_f.clamp(-LAT_LIMIT, +LAT_LIMIT) BoundingBox.new(min_lon, min_lat, max_lon, max_lat) end end