User:Doxcat/gpstool

so i wrote dis here perl script to extract gps information from exif tags in an image if they exist, as well as determine the nearest address given that information.

dependencies: Image::ExifTool, Geo::GeoNames, Geo::Coordinates::DecimalDegrees

sauce:

#!/usr/bin/perl

use strict;
use warnings;
use Image::ExifTool;
use Geo::GeoNames;
use Geo::Coordinates::DecimalDegrees;

my $et = Image::ExifTool->new;
my $geo = Geo::GeoNames->new;
my $file = shift;
die("Please include a filename") if !defined $file;
die("$file does not exist") if !-f $file;
print "GPS info for " . `basename $file` . "\n";

my $info = $et->ImageInfo($file);
my ($mTag, $mVal) = (0,0);
my $out = {};
foreach my $el (keys %$info) {
        next if $el !~ /GPS/;
        if(length $el > $mTag) {
                $mTag = length $el;
        }
        if(length $info->{$el} > $mVal) {
                $mVal = length $info->{$el};
        }
        $out->{$el} = $info->{$el};
}

map { printf("\%-${mTag}s : \%-${mVal}s\n", $_, $out->{$_}) } keys %$out;
my ($lat, $lng)  = split(/, /,$out->{GPSPosition});
my @lt = ($lat =~ /([\d\.]+) deg ([\d\.]+)' ([\d\.]+)" (\w)/i);
my @ln = ($lng =~ /([\d\.]+) deg ([\d\.]+)' ([\d\.]+)" (\w)/i);
$lt[0] = -$lt[0] if $lt[3] eq "S";
$ln[0] = -$ln[0] if $ln[3] eq "W";
my $latD = dms2decimal($lt[0],$lt[1],$lt[2]);
my $lngD = dms2decimal($ln[0],$ln[1],$ln[2]);
my $n = $geo->find_nearest_address(lat => $latD, lng => $lngD);
if(defined $n and scalar @$n != 0) {
        my $nearest = $n->[0];
        my $num = $nearest->{streetNumber};
        my $street = $nearest->{street};
        my $city = $nearest->{placename};
        my $state = $nearest->{adminCode1};
        my $zip = $nearest->{postalcode};
        my $address = "$num $street, $city, $state $zip";
        print "\nNearest detected address: $address";
}   
print "\n";