Today I’ve found this fantastic example: GPS and Google Map with Python in 42 lines of code obviously the first thing I thought was how can I do this in Ruby?
Well it was quite easy:
First of all I installed the ruby-serialport gem
last I rewrite the code I found in ruby; this is the result:
require ‘serialport’
def dmmm2dec(degrees,sw)
deg= (degrees/100.0).floor #decimal degrees
frac= ((degrees/100.0)-deg)/0.6 #decimal fraction
ret = deg+frac #positive return value
if ((sw=="S") or (sw=="W")):
ret=ret*(-1) #flip sign if south or west
end
return ret
end
sp = SerialPort.new(‘/dev/tty.holux’, 4800,8,1,SerialPort::NONE)
while(line=sp.readline) do
if line =~ /\$GPGGA/
tokens = line.split(",")
lat = dmmm2dec((tokens[2]).to_f,tokens[3]) #[2] is lat in deg+minutes, [3] is {N|S|W|E}
lng = dmmm2dec((tokens[4]).to_f,tokens[5]) #[4] is long in deg+minutes, [5] is {N|S|W|E}
puts "http://maps.google.com/maps?ie=UTF8&ll=#{lat},#{lng}"
sleep 1
end
end
