--- web/googlemap.cgi 2007/12/03 14:25:40 14
+++ web/googlemap.cgi 2007/12/07 15:53:41 30
@@ -9,10 +9,12 @@
use File::Find;
use Data::Dump qw/dump/;
-use lib '../';
+use lib '../lib';
+use blib;
use NMEA;
+use KML;
-my $trace_path = '/home/dpavlin/x/openmoko/gps/';
+my $trace_path = '../nmea/';
# http://localhost/
my $map_key = 'ABQIAAAAVQ5szt9Jd8ws6vgfVQOEmhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQ1cKf0DwFJcwtpESJEI0hL8QgtYg';
@@ -24,15 +26,11 @@
my $q = CGI->new;
-print $q->header;
-
-print qq{
-
-Read GPS - NMEA sentence and display it on GoogleMaps
-
+my $head = '';
+my $html = join('', qq{
Select GPS NMEA dump
},
- $q->start_form,
+ $q->start_form( -id => 'trace_frm' ),
$q->popup_menu(
-name => 'trace',
-values => [
@@ -40,58 +38,223 @@
"$_ (" . (stat("$trace_path/$_"))[7] . " bytes)"
}
sort {
- (stat("$trace_path/$a"))[10] <=> (stat("$trace_path/$b"))[10]
+ (stat("$trace_path/$a"))[9] <=> (stat("$trace_path/$b"))[9]
} @traces
],
+ -onChange => 'trace_frm.submit()',
+ ),
+ $q->submit(
+ -name => 'show',
+ -value => 'Show trace'
+ ),
+ ' Export to ',
+ $q->submit(
+ -name => 'export',
+ -value => 'KML'
+ ),
+ $q->br,
+ 'Draw ',
+ $q->popup_menu(
+ -name => 'points_filter',
+ -values => [ 'all', 'every', 'total of' ],
),
- $q->submit( -value => 'Show trace' ),
- $q->end_form;
+ $q->textfield(
+ -name => 'points_count',
+ -value => '',
+ -size => 2,
+ -onChange => 'trace_frm.submit()',
+ ),
+ ' points and ',
+ $q->popup_menu(
+ -name => 'placemark_filter',
+ -values => [ 'total of', 'every' ],
+ ),
+ $q->textfield(
+ -name => 'placemark_count',
+ -value => 5,
+ -size => 2,
+ -onChange => 'trace_frm.submit()',
+ ),
+ ' placemarks',
+ $q->end_form,
+);
+
+
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 $center_point;
+ my @points;
+ my @placemarks;
open(my $fh, '<', $trace) || die "can't open $trace: $!";
while( <$fh> ) {
my $hash = NMEA->line( $_ ) || next;
- $map->add_marker(
- point => [ $hash->{lon}, $hash->{lat} ],
+ my $point = [ $hash->{lon}, $hash->{lat} ];
+ $center_point ||= $point;
+
+ push @points, $point;
+
+ push @placemarks, {
+ point => $point,
html => join('
',
map {
ucfirst($_) . ': ' . $hash->{$_}
- } ( qw/time lat lon speed course/ )
+ } ( qw/number time lat lon speed course/ )
),
- );
+ %$hash,
+ };
- $points++;
}
close($fh);
- #$map->zoom(10);
- #$map->v2_zoom(0);
- $map->controls("large_map_control", "map_type_control");
- $map->map_type('hybrid');
+ if ( $#points >= 0 ) {
- my ($head, $map_div, $map_script) = $map->render;
+ sub filter_array {
+ my $o = {@_};
+ my ( $count, $filter, $code ) =
+ ( $o->{count}, $o->{filter}, $o->{code} ) ;
+ confess "no CODE?" unless ref($code) eq 'CODE';
+ my @array = @{ $o->{array} };
+
+ warn "count: $count filter: $filter\n";
+
+ my $code_calls = 0;
+
+ if ( $count && $filter =~ m/every/ ) {
+ foreach my $o ( 0 .. $#array ) {
+ next unless $o % $count == 0;
+ $code->( $array[$o] );
+ $code_calls++;
+ }
+ } elsif ( $count && $filter =~ m/total/ ) {
+ # total of
+ if ( $count < 2 ) {
+ # first
+ if ( $array[0]) {
+ $code->( $array[0] );
+ $code_calls++;
+ };
+ # last
+ if ( $count > 1 && $#array > 0 ) {
+ $code->( $array[$#array] );
+ $code_calls++;
+ };
+ return $code_calls;
+ }
+
+ my $d = $#array / ( $count - 1 );
+ foreach my $p ( 0 .. $count - 1 ) {
+ my $o = int($p * $d);
+ die "no element $p at $o from total of ",$#array + 1 unless $array[$o];
+ $code->( $array[$o] );
+ $code_calls++;
+ }
+ } else {
+ # show every
+ foreach my $e ( @array ) {
+ $code->( $e );
+ $code_calls++;
+ }
+ }
+ return $code_calls;
+ }
+
+ my $map = HTML::GoogleMaps->new(
+ key => $map_key,
+ width => '800px',
+ height => '600px',
+ );
+
+ my @poly_points;
+ my $points = filter_array(
+ count => $q->param('points_count'),
+ filter => $q->param('points_filter'),
+ code => sub {
+ my $point = shift;
+ push @poly_points, $point;
+ },
+ array => \@points,
+ );
- print qq{
-Plotting $points points from }, $q->param('trace'), qq{
+ die "hum?" unless $#poly_points == $points - 1;
+
+ my @filtered_placemarks;
+
+ my $placemarks = filter_array(
+ count => $q->param('placemark_count'),
+ filter => $q->param('placemark_filter'),
+ code => sub {
+ my $placemark = shift;
+ $map->add_marker( %$placemark, noformat => 1 );
+ push @filtered_placemarks, $placemark;
+ },
+ array => \@placemarks,
+ );
+
+ if ( my $export = $q->param('export') ) {
+ if ( $export eq 'KML' ) {
+ print $q->header(
+ -type => 'application/xhtml+xml',
+ ),
+ KML->output( placemarks => \@filtered_placemarks );
+ exit;
+ } else {
+ die "unknown export format $export";
+ }
+ }
+
+
+ #$map->center(point => "Zagreb, Hrvatska");
+
+ #$map->zoom(10);
+ $map->v2_zoom(20);
+ $map->controls("large_map_control", "map_type_control");
+ $map->map_type('hybrid');
+ $map->center( $center_point ) if $q->param('line') && $center_point;
+
+ $map->add_polyline( points => [ @poly_points ] ) if @poly_points;
+
+ my ( $map_div, $map_script );
+ ( $head, $map_div, $map_script ) = $map->render;
+
+ $html .= join('',
+$#points + 1, ' points from ', $q->param('trace'), ' showing ',
+ $points ? $points . ' points' . ( $placemarks ? ' and ' : '' ) : '',
+ $placemarks ? $placemarks . ' placemarks' : '',
+ qq{
$map_div
$map_script
GPS - NMEA sentence information
- };
+ });
+
+ my $stats = NMEA->stats;
+ $html .= '';
+ foreach my $n ( keys %$stats ) {
+ $html .= "| $n | " . $stats->{$n} . " |
";
+ }
+ $html .= '
';
+
+ } else {
+ $html .= 'No points found for ' . $q->param('trace') . '';
+ }
}
+print $q->header;
print qq{
+
+
+Read GPS - NMEA sentence and display it on GoogleMaps
+$head
+
+
+$html
};