@results = []
if lat >= -90 && lat <= 90 && lon >= -180 && lon <= 180
- @results.push(:lat => lat, :lon => lon,
+ @results.push(:lat => params[:lat], :lon => params[:lon],
:zoom => params[:zoom],
- :name => "#{lat}, #{lon}")
+ :name => "#{params[:lat]}, #{params[:lon]}")
end
if lon >= -90 && lon <= 90 && lat >= -180 && lat <= 180
- @results.push(:lat => lon, :lon => lat,
+ @results.push(:lat => params[:lon], :lon => params[:lat],
:zoom => params[:zoom],
- :name => "#{lon}, #{lat}")
+ :name => "#{params[:lon]}, #{params[:lat]}")
end
if @results.empty?
@error = "Longitude #{lon} out of range"
render :action => "error"
else
- @results = [{ :lat => lat, :lon => lon,
+ @results = [{ :lat => params[:lat], :lon => params[:lon],
:zoom => params[:zoom],
- :name => "#{lat}, #{lon}" }]
+ :name => "#{params[:lat]}, #{params[:lon]}" }]
render :action => "results"
end
if query = params[:query]
query.strip!
- if latlon = query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).try(:captures) || # [NSEW] decimal degrees
- query.match(/^(\d{1,3}(\.\d*)?)\s*([NS])\W*(\d{1,3}(\.\d*)?)\s*([EW])$/).try(:captures) # decimal degrees [NSEW]
- params.merge!(nsew_to_decdeg(latlon)).delete(:query)
+ if latlon = query.match(/^(?<ns>[NS])\s*#{dms_regexp('ns')}\W*(?<ew>[EW])\s*#{dms_regexp('ew')}$/) ||
+ query.match(/^#{dms_regexp('ns')}\s*(?<ns>[NS])\W*#{dms_regexp('ew')}\s*(?<ew>[EW])$/)
+ params.merge!(to_decdeg(latlon.named_captures.compact)).delete(:query)
- elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?\W*([EW])\s*(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?$/).try(:captures) || # [NSEW] degrees, decimal minutes
- query.match(/^(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?\s*([NS])\W*(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?\s*([EW])$/).try(:captures) # degrees, decimal minutes [NSEW]
- params.merge!(ddm_to_decdeg(latlon)).delete(:query)
-
- elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?$/).try(:captures) || # [NSEW] degrees, minutes, decimal seconds
- query.match(/^(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?\s*([EW])$/).try(:captures) # degrees, minutes, decimal seconds [NSEW]
- params.merge!(dms_to_decdeg(latlon)).delete(:query)
-
- elsif latlon = query.match(%r{^([+-]?\d+(\.\d*)?)(?:\s+|\s*[,/]\s*)([+-]?\d+(\.\d*)?)$})
- params.merge!(:lat => latlon[1].to_f, :lon => latlon[3].to_f).delete(:query)
+ elsif latlon = query.match(%r{^(?<lat>[+-]?\d+(?:\.\d+)?)(?:\s+|\s*[,/]\s*)(?<lon>[+-]?\d+(?:\.\d+)?)$})
+ params.merge!(:lat => latlon["lat"], :lon => latlon["lon"]).delete(:query)
params[:latlon_digits] = true
end
params.permit(:query, :lat, :lon, :latlon_digits, :zoom, :minlat, :minlon, :maxlat, :maxlon)
end
- def nsew_to_decdeg(captures)
- begin
- Float(captures[0])
- lat = captures[2].casecmp("s").zero? ? -captures[0].to_f : captures[0].to_f
- lon = captures[5].casecmp("w").zero? ? -captures[3].to_f : captures[3].to_f
- rescue StandardError
- lat = captures[0].casecmp("s").zero? ? -captures[1].to_f : captures[1].to_f
- lon = captures[3].casecmp("w").zero? ? -captures[4].to_f : captures[4].to_f
- end
- { :lat => lat, :lon => lon }
+ def dms_regexp(name_prefix)
+ /
+ (?: (?<#{name_prefix}d>\d{1,3}(?:\.\d+)?)°? ) |
+ (?: (?<#{name_prefix}d>\d{1,3})°?\s*(?<#{name_prefix}m>\d{1,2}(?:\.\d+)?)['′]? ) |
+ (?: (?<#{name_prefix}d>\d{1,3})°?\s*(?<#{name_prefix}m>\d{1,2})['′]?\s*(?<#{name_prefix}s>\d{1,2}(?:\.\d+)?)["″]? )
+ /x
end
- def ddm_to_decdeg(captures)
- begin
- Float(captures[0])
- lat = captures[3].casecmp("s").zero? ? -(captures[0].to_f + (captures[1].to_f / 60)) : captures[0].to_f + (captures[1].to_f / 60)
- lon = captures[7].casecmp("w").zero? ? -(captures[4].to_f + (captures[5].to_f / 60)) : captures[4].to_f + (captures[5].to_f / 60)
- rescue StandardError
- lat = captures[0].casecmp("s").zero? ? -(captures[1].to_f + (captures[2].to_f / 60)) : captures[1].to_f + (captures[2].to_f / 60)
- lon = captures[4].casecmp("w").zero? ? -(captures[5].to_f + (captures[6].to_f / 60)) : captures[5].to_f + (captures[6].to_f / 60)
- end
- { :lat => lat, :lon => lon }
- end
+ def to_decdeg(captures)
+ ns = captures.fetch("ns").casecmp?("s") ? -1 : 1
+ nsd = BigDecimal(captures.fetch("nsd", "0"))
+ nsm = BigDecimal(captures.fetch("nsm", "0"))
+ nss = BigDecimal(captures.fetch("nss", "0"))
- def dms_to_decdeg(captures)
- begin
- Float(captures[0])
- lat = captures[4].casecmp("s").zero? ? -(captures[0].to_f + ((captures[1].to_f + (captures[2].to_f / 60)) / 60)) : captures[0].to_f + ((captures[1].to_f + (captures[2].to_f / 60)) / 60)
- lon = captures[9].casecmp("w").zero? ? -(captures[5].to_f + ((captures[6].to_f + (captures[7].to_f / 60)) / 60)) : captures[5].to_f + ((captures[6].to_f + (captures[7].to_f / 60)) / 60)
- rescue StandardError
- lat = captures[0].casecmp("s").zero? ? -(captures[1].to_f + ((captures[2].to_f + (captures[3].to_f / 60)) / 60)) : captures[1].to_f + ((captures[2].to_f + (captures[3].to_f / 60)) / 60)
- lon = captures[5].casecmp("w").zero? ? -(captures[6].to_f + ((captures[7].to_f + (captures[8].to_f / 60)) / 60)) : captures[6].to_f + ((captures[7].to_f + (captures[8].to_f / 60)) / 60)
- end
- { :lat => lat, :lon => lon }
+ ew = captures.fetch("ew").casecmp?("w") ? -1 : 1
+ ewd = BigDecimal(captures.fetch("ewd", "0"))
+ ewm = BigDecimal(captures.fetch("ewm", "0"))
+ ews = BigDecimal(captures.fetch("ews", "0"))
+
+ lat = ns * (nsd + (nsm / 60) + (nss / 3600))
+ lon = ew * (ewd + (ewm / 60) + (ews / 3600))
+
+ { :lat => lat.round(6).to_s("F"), :lon => lon.round(6).to_s("F") }
end
end
projects / rails.git / blobdiff