/gist:49658505d40e11cb1769 Secret
Created
April 25, 2012 20:42
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Programing Problem: Decimalize Latitude Longitude
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# Decimalize latitude longitude | |
# "37°26′36.42″N 06°15′14.28″W" --> (37.44345 -6.253966666666667) | |
$regex = %r{ | |
(?<lat_deg>\d{1,2})\D+ | |
(?<lat_min>\d{1,2})\D+ | |
(?<lat_sec>\d{1,2}(\.\d+))\D+ | |
(?<lat_hemi>[NS]) | |
\s+ | |
(?<lng_deg>\d{1,3})\D+ | |
(?<lng_min>\d{1,2})\D+ | |
(?<lng_sec>\d{1,2}(\.\d+))\D+ | |
(?<lng_hemi>[EW]) | |
}x | |
def decimalize_location(location) | |
if g = $regex.match(location) | |
lat = g['lat_deg'].to_i + g['lat_min'].to_f/60 + g['lat_sec'].to_f/3600 | |
lat = -lat if g['lat_hemi'] == 'S' | |
lng = g['lng_deg'].to_i + g['lng_min'].to_f/60 + g['lng_sec'].to_f/3600 | |
lng = -lng if g['lng_hemi'] == 'W' | |
{y:lat, x:lng} | |
end | |
end |
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