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#!/usr/bin/perl |
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|
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use warnings; |
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use strict; |
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|
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use HTML::GoogleMaps; |
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use CGI; |
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use CGI::Carp qw/fatalsToBrowser/; |
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use File::Find; |
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use Data::Dump qw/dump/; |
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|
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use lib '../lib'; |
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use blib; |
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use NMEA; |
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|
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my $trace_path = '../nmea/'; |
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|
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# http://localhost/ |
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my $map_key = 'ABQIAAAAVQ5szt9Jd8ws6vgfVQOEmhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQ1cKf0DwFJcwtpESJEI0hL8QgtYg'; |
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|
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my @traces; |
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find({ wanted => sub { |
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push @traces, $_ if -f $_; |
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}}, $trace_path); |
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|
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my $q = CGI->new; |
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|
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print $q->header; |
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|
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my $head = ''; |
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my $html = join('', qq{ |
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<h1>Select GPS NMEA dump</h1> |
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}, |
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$q->start_form( -id => 'trace_frm' ), |
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$q->popup_menu( |
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-name => 'trace', |
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-values => [ |
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map { |
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"$_ (" . (stat("$trace_path/$_"))[7] . " bytes)" |
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} |
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sort { |
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(stat("$trace_path/$a"))[9] <=> (stat("$trace_path/$b"))[9] |
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} @traces |
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], |
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-onChange => 'trace_frm.submit()', |
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), |
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$q->submit( -value => 'Show trace' ), |
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$q->br, |
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'Draw ', |
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$q->popup_menu( |
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-name => 'points_filter', |
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-values => [ 'all', 'every', 'total of' ], |
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), |
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$q->textfield( |
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-name => 'points_count', |
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-value => '', |
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-size => 2, |
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-onChange => 'trace_frm.submit()', |
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), |
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' points and ', |
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$q->popup_menu( |
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-name => 'placemark_filter', |
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-values => [ 'total of', 'every' ], |
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), |
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$q->textfield( |
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-name => 'placemark_count', |
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-value => 5, |
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-size => 2, |
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-onChange => 'trace_frm.submit()', |
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), |
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' placemarks', |
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$q->end_form, |
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); |
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|
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|
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|
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if ( my $trace = $q->param('trace') ) { |
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$trace =~ s/\s.+$//; |
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|
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$trace = "$trace_path/$trace"; |
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|
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my $center_point; |
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my @points; |
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my @placemarks; |
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|
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open(my $fh, '<', $trace) || die "can't open $trace: $!"; |
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while( <$fh> ) { |
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|
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my $hash = NMEA->line( $_ ) || next; |
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|
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my $point = [ $hash->{lon}, $hash->{lat} ]; |
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$center_point ||= $point; |
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|
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push @points, $point; |
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|
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push @placemarks, { |
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point => $point, |
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html => join('<br/>', |
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map { |
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ucfirst($_) . ': ' . $hash->{$_} |
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} ( qw/number time lat lon speed course/ ) |
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), |
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}; |
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|
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} |
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close($fh); |
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|
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if ( $#points >= 0 ) { |
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|
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my $map = HTML::GoogleMaps->new( |
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key => $map_key, |
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width => '800px', |
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height => '600px', |
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); |
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#$map->center(point => "Zagreb, Hrvatska"); |
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|
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#$map->zoom(10); |
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$map->v2_zoom(20); |
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$map->controls("large_map_control", "map_type_control"); |
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$map->map_type('hybrid'); |
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$map->center( $center_point ) if $q->param('line') && $center_point; |
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|
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sub filter_array { |
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my $o = {@_}; |
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my ( $count, $filter, $code ) = |
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( $o->{count}, $o->{filter}, $o->{code} ) ; |
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confess "no CODE?" unless ref($code) eq 'CODE'; |
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my @array = @{ $o->{array} }; |
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|
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warn "count: $count filter: $filter\n"; |
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|
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my $code_calls = 0; |
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|
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if ( $count && $filter =~ m/every/ ) { |
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foreach my $o ( 0 .. $#array ) { |
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next unless $o % $count == 0; |
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$code->( $array[$o] ); |
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$code_calls++; |
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} |
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} elsif ( $count && $filter =~ m/total/ ) { |
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# total of |
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if ( $count < 2 ) { |
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# first |
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if ( $array[0]) { |
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$code->( $array[0] ); |
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$code_calls++; |
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}; |
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# last |
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if ( $count > 1 && $#array > 0 ) { |
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$code->( $array[$#array] ); |
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$code_calls++; |
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}; |
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return $code_calls; |
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} |
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|
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my $d = $#array / ( $count - 1 ); |
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foreach my $p ( 0 .. $count - 1 ) { |
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my $o = int($p * $d); |
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die "no element $p at $o from total of ",$#array + 1 unless $array[$o]; |
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$code->( $array[$o] ); |
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$code_calls++; |
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} |
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} else { |
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# show every |
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foreach my $e ( @array ) { |
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$code->( $e ); |
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$code_calls++; |
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} |
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} |
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return $code_calls; |
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} |
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|
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my @poly_points; |
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my $points = filter_array( |
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count => $q->param('points_count'), |
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filter => $q->param('points_filter'), |
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code => sub { |
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my $point = shift; |
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push @poly_points, $point; |
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}, |
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array => \@points, |
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); |
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|
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die "hum?" unless $#poly_points == $points - 1; |
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|
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$map->add_polyline( points => [ @poly_points ] ) if @poly_points; |
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|
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my $placemarks = filter_array( |
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count => $q->param('placemark_count'), |
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filter => $q->param('placemark_filter'), |
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code => sub { |
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my $placemark = shift; |
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$map->add_marker( %$placemark, noformat => 1 ); |
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}, |
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array => \@placemarks, |
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); |
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|
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my ( $map_div, $map_script ); |
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( $head, $map_div, $map_script ) = $map->render; |
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|
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$html .= join('', |
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$#points + 1, ' points from <tt>', $q->param('trace'), '</tt> showing ', |
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$points ? $points . ' points' . ( $placemarks ? ' and ' : '' ) : '', |
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$placemarks ? $placemarks . ' placemarks' : '', |
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qq{ |
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$map_div |
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$map_script |
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<a href="http://aprs.gids.nl/nmea/">GPS - NMEA sentence information</a> |
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}); |
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|
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} else { |
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$html .= '<em>No points found for ' . $q->param('trace') . '</em>'; |
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} |
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|
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} |
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|
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print qq{ |
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<html> |
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<head> |
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<title>Read GPS - NMEA sentence and display it on GoogleMaps</title> |
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$head |
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</head> |
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<body> |
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$html |
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</body> |
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</html> |
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}; |
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