maps/web/googlemap.cgi

#!/usr/bin/perl

use warnings;
use strict;

use HTML::GoogleMaps;
use CGI;
use CGI::Carp qw/fatalsToBrowser/;
use File::Find;
use Data::Dump qw/dump/;

use lib '../';
use NMEA;

my $trace_path = '/home/dpavlin/x/openmoko/gps/';

# http://localhost/
my $map_key = 'ABQIAAAAVQ5szt9Jd8ws6vgfVQOEmhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQ1cKf0DwFJcwtpESJEI0hL8QgtYg';

my @traces;
find({ wanted => sub {
        push @traces, $_ if -f $_;
}}, $trace_path);

my $q = CGI->new;

print $q->header;

my $head = '';
my $html = join('', qq{
<h1>Select GPS NMEA dump</h1>
        },
        $q->start_form( -id => 'trace_frm' ),
        $q->popup_menu(
                -name => 'trace', 
                -values => [
                        map {
                                "$_ (" . (stat("$trace_path/$_"))[7] . " bytes)"
                        }
                        sort {
                                (stat("$trace_path/$a"))[10] <=> (stat("$trace_path/$b"))[10]
                        } @traces
                ],
                -onChange => 'trace_frm.submit()',
        ),
        $q->submit( -value => 'Show trace' ),
        $q->br,
        'Draw as ',
        $q->checkbox(
                -name => 'line',
                -onChange => 'trace_frm.submit()',
        ),
        ' with every ',
        $q->textfield(
                -name => 'nth_placemark',
                -value => 5,
                -size => 2,
                -onChange => 'trace_frm.submit()',
        ),
        '<sup>th</sup> placemark',
        $q->end_form,
);


my @points;
my $center_point;

if ( my $trace = $q->param('trace') ) {
        $trace =~ s/\s.+$//;

        my $map = HTML::GoogleMaps->new(key => $map_key);
        #$map->center(point => "Zagreb, Hrvatska");

        $trace = "$trace_path/$trace";

        my $points = 0;
        my $nth_placemark = $q->param('nth_placemark');

        open(my $fh, '<', $trace) || die "can't open $trace: $!";
        while( <$fh> ) {

                my $hash = NMEA->line( $_ ) || next;

                my $point = [ $hash->{lon}, $hash->{lat} ];
                $center_point ||= $point;


                if ( $q->param('line') ) {
                        push @points, $point;
                }

                if ( ! $q->param('line') ||
                        $nth_placemark && $points % $nth_placemark == 0
                ) {

                        $map->add_marker(
                                point => $point,
                                html => join('<br/>',
                                        map {
                                                ucfirst($_) . ': ' . $hash->{$_}
                                        } ( qw/time lat lon speed course/ )
                                ),
                        );

                }

                $points++;

        }
        close($fh);

        if ( $points > 0 ) {

                #$map->zoom(10);
                #$map->v2_zoom(0);
                $map->controls("large_map_control", "map_type_control");
                $map->map_type('hybrid');
                $map->center( $center_point ) if $q->param('line') && $center_point;

                if ( $q->param('line') ) {
                        warn "## points = ",dump( @points );
                        $map->add_polyline( points => [ @points ] );
                }

                my ( $map_div, $map_script );
                ( $head, $map_div, $map_script ) = $map->render;

                $html .= join('', qq{
<h1>Plotting $points points from }, $q->param('trace'), qq{</h1>
$map_div
$map_script
<a href="http://aprs.gids.nl/nmea/">GPS - NMEA sentence information</a>
                });
        
        } else {
                $html .= '<em>No points found for ' . $q->param('trace') . '</em>';
        }

}

print qq{
<html>
<head>
<title>Read GPS - NMEA sentence and display it on GoogleMaps</title>
$head
</head>
<body>
$html
</body>
</html>
};
1	dpavlin	13	#!/usr/bin/perl
2
3			use warnings;
4			use strict;
5
6			use HTML::GoogleMaps;
7	dpavlin	14	use CGI;
8	dpavlin	13	use CGI::Carp qw/fatalsToBrowser/;
9	dpavlin	14	use File::Find;
10	dpavlin	13	use Data::Dump qw/dump/;
11
12	dpavlin	14	use lib '../';
13			use NMEA;
14
15			my $trace_path = '/home/dpavlin/x/openmoko/gps/';
16
17	dpavlin	13	# http://localhost/
18			my $map_key = 'ABQIAAAAVQ5szt9Jd8ws6vgfVQOEmhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQ1cKf0DwFJcwtpESJEI0hL8QgtYg';
19
20	dpavlin	14	my @traces;
21			find({ wanted => sub {
22			push @traces, $_ if -f $_;
23			}}, $trace_path);
24	dpavlin	13
25	dpavlin	14	my $q = CGI->new;
26	dpavlin	13
27	dpavlin	14	print $q->header;
28	dpavlin	13
29	dpavlin	15	my $head = '';
30			my $html = join('', qq{
31	dpavlin	14	<h1>Select GPS NMEA dump</h1>
32			},
33	dpavlin	19	$q->start_form( -id => 'trace_frm' ),
34	dpavlin	14	$q->popup_menu(
35			-name => 'trace',
36			-values => [
37			map {
38			"$_ (" . (stat("$trace_path/$_"))[7] . " bytes)"
39			}
40			sort {
41			(stat("$trace_path/$a"))[10] <=> (stat("$trace_path/$b"))[10]
42			} @traces
43			],
44	dpavlin	19	-onChange => 'trace_frm.submit()',
45	dpavlin	14	),
46			$q->submit( -value => 'Show trace' ),
47	dpavlin	23	$q->br,
48			'Draw as ',
49			$q->checkbox(
50			-name => 'line',
51			-onChange => 'trace_frm.submit()',
52			),
53			' with every ',
54			$q->textfield(
55			-name => 'nth_placemark',
56			-value => 5,
57			-size => 2,
58			-onChange => 'trace_frm.submit()',
59			),
60			'<sup>th</sup> placemark',
61	dpavlin	15	$q->end_form,
62			);
63	dpavlin	13
64	dpavlin	23
65			my @points;
66			my $center_point;
67
68	dpavlin	14	if ( my $trace = $q->param('trace') ) {
69			$trace =~ s/\s.+$//;
70	dpavlin	13
71	dpavlin	14	my $map = HTML::GoogleMaps->new(key => $map_key);
72			#$map->center(point => "Zagreb, Hrvatska");
73	dpavlin	13
74	dpavlin	14	$trace = "$trace_path/$trace";
75	dpavlin	13
76	dpavlin	14	my $points = 0;
77	dpavlin	23	my $nth_placemark = $q->param('nth_placemark');
78	dpavlin	13
79	dpavlin	14	open(my $fh, '<', $trace) \|\| die "can't open $trace: $!";
80			while( <$fh> ) {
81	dpavlin	13
82	dpavlin	14	my $hash = NMEA->line( $_ ) \|\| next;
83	dpavlin	13
84	dpavlin	23	my $point = [ $hash->{lon}, $hash->{lat} ];
85			$center_point \|\|= $point;
86	dpavlin	13
87	dpavlin	23
88			if ( $q->param('line') ) {
89			push @points, $point;
90			}
91
92			if ( ! $q->param('line') \|\|
93			$nth_placemark && $points % $nth_placemark == 0
94			) {
95
96			$map->add_marker(
97			point => $point,
98			html => join('<br/>',
99			map {
100			ucfirst($_) . ': ' . $hash->{$_}
101			} ( qw/time lat lon speed course/ )
102			),
103			);
104
105			}
106
107	dpavlin	14	$points++;
108	dpavlin	23
109	dpavlin	14	}
110			close($fh);
111	dpavlin	13
112	dpavlin	18	if ( $points > 0 ) {
113	dpavlin	13
114	dpavlin	18	#$map->zoom(10);
115			#$map->v2_zoom(0);
116			$map->controls("large_map_control", "map_type_control");
117			$map->map_type('hybrid');
118	dpavlin	23	$map->center( $center_point ) if $q->param('line') && $center_point;
119	dpavlin	13
120	dpavlin	23	if ( $q->param('line') ) {
121			warn "## points = ",dump( @points );
122			$map->add_polyline( points => [ @points ] );
123			}
124
125	dpavlin	18	my ( $map_div, $map_script );
126			( $head, $map_div, $map_script ) = $map->render;
127
128			$html .= join('', qq{
129	dpavlin	14	<h1>Plotting $points points from }, $q->param('trace'), qq{</h1>
130			$map_div
131			$map_script
132			<a href="http://aprs.gids.nl/nmea/">GPS - NMEA sentence information</a>
133	dpavlin	18	});
134
135			} else {
136			$html .= '<em>No points found for ' . $q->param('trace') . '</em>';
137			}
138	dpavlin	13
139			}
140
141			print qq{
142	dpavlin	15	<html>
143			<head>
144			<title>Read GPS - NMEA sentence and display it on GoogleMaps</title>
145			$head
146			</head>
147			<body>
148			$html
149	dpavlin	13	</body>
150			</html>
151			};