/[maps]/web/googlemap.cgi
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Revision 18 - (show annotations)
Mon Dec 3 15:06:33 2007 UTC (11 years, 10 months ago) by dpavlin
File size: 2039 byte(s)
don't show map (which in turns create JavaScript error) if there are no points
1 #!/usr/bin/perl
2
3 use warnings;
4 use strict;
5
6 use HTML::GoogleMaps;
7 use CGI;
8 use CGI::Carp qw/fatalsToBrowser/;
9 use File::Find;
10 use Data::Dump qw/dump/;
11
12 use lib '../';
13 use NMEA;
14
15 my $trace_path = '/home/dpavlin/x/openmoko/gps/';
16
17 # http://localhost/
18 my $map_key = 'ABQIAAAAVQ5szt9Jd8ws6vgfVQOEmhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQ1cKf0DwFJcwtpESJEI0hL8QgtYg';
19
20 my @traces;
21 find({ wanted => sub {
22 push @traces, $_ if -f $_;
23 }}, $trace_path);
24
25 my $q = CGI->new;
26
27 print $q->header;
28
29 my $head = '';
30 my $html = join('', qq{
31 <h1>Select GPS NMEA dump</h1>
32 },
33 $q->start_form,
34 $q->popup_menu(
35 -name => 'trace',
36 -values => [
37 map {
38 "$_ (" . (stat("$trace_path/$_"))[7] . " bytes)"
39 }
40 sort {
41 (stat("$trace_path/$a"))[10] <=> (stat("$trace_path/$b"))[10]
42 } @traces
43 ],
44 ),
45 $q->submit( -value => 'Show trace' ),
46 $q->end_form,
47 );
48
49 if ( my $trace = $q->param('trace') ) {
50 $trace =~ s/\s.+$//;
51
52 my $map = HTML::GoogleMaps->new(key => $map_key);
53 #$map->center(point => "Zagreb, Hrvatska");
54
55 $trace = "$trace_path/$trace";
56
57 my $points = 0;
58
59 open(my $fh, '<', $trace) || die "can't open $trace: $!";
60 while( <$fh> ) {
61
62 my $hash = NMEA->line( $_ ) || next;
63
64 $map->add_marker(
65 point => [ $hash->{lon}, $hash->{lat} ],
66 html => join('<br/>',
67 map {
68 ucfirst($_) . ': ' . $hash->{$_}
69 } ( qw/time lat lon speed course/ )
70 ),
71 );
72
73 $points++;
74 }
75 close($fh);
76
77 if ( $points > 0 ) {
78
79 #$map->zoom(10);
80 #$map->v2_zoom(0);
81 $map->controls("large_map_control", "map_type_control");
82 $map->map_type('hybrid');
83
84 my ( $map_div, $map_script );
85 ( $head, $map_div, $map_script ) = $map->render;
86
87 $html .= join('', qq{
88 <h1>Plotting $points points from }, $q->param('trace'), qq{</h1>
89 $map_div
90 $map_script
91 <a href="http://aprs.gids.nl/nmea/">GPS - NMEA sentence information</a>
92 });
93
94 } else {
95 $html .= '<em>No points found for ' . $q->param('trace') . '</em>';
96 }
97
98 }
99
100 print qq{
101 <html>
102 <head>
103 <title>Read GPS - NMEA sentence and display it on GoogleMaps</title>
104 $head
105 </head>
106 <body>
107 $html
108 </body>
109 </html>
110 };

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