7 use Math::Trig qw(deg2rad pip2 great_circle_distance);
12 my $source = shift @ARGV;
13 my $zone = shift @ARGV;
14 my $servers = YAML::LoadFile("src/${source}");
18 my $countries = XML::TreeBuilder->new;
20 $countries->parsefile("lib/countries.xml");
22 foreach my $country ($countries->look_down("_tag" => "country"))
24 my $code = $country->look_down("_tag" => "countryCode")->as_text;
25 my $name = $country->look_down("_tag" => "countryName")->as_text;
26 my $continent = $country->look_down("_tag" => "continent")->as_text;
27 my $west = $country->look_down("_tag" => "bBoxWest")->as_text;
28 my $north = $country->look_down("_tag" => "bBoxNorth")->as_text;
29 my $east = $country->look_down("_tag" => "bBoxEast")->as_text;
30 my $south = $country->look_down("_tag" => "bBoxSouth")->as_text;
31 my $lat = centre_lat( $south, $north );
32 my $lon = centre_lon( $west, $east );
35 foreach my $servername (keys %$servers)
37 my $server = $servers->{$servername};
38 my $match = match_country($server, $code, $continent);
40 if ($match eq "preferred" || $match eq "allowed")
42 my $priority = $match eq "preferred" ? 20 : 10;
43 my $distance = distance($lat, $lon, $server->{lat}, $server->{lon});
45 # print STDERR "$servername is $match for $name with distance $distance\n";
47 push @servers, { name => $servername, priority => $priority, distance => $distance };
52 code => $code, name => $name, continent => $continent,
53 lat => $lat, lon => $lon, servers => \@servers
59 my $zonefile = IO::File->new("> data/${zone}") || die "$!";
60 my $kmlfile = IO::File->new("> kml/${zone}.kml") || die "$!";
61 my $kmlwriter = XML::Writer->new(OUTPUT => $kmlfile, ENCODING => 'utf-8');
63 $kmlwriter->xmlDecl();
64 $kmlwriter->startTag("kml", "xmlns" => "http://www.opengis.net/kml/2.2");
65 $kmlwriter->startTag("Document");
67 foreach my $country (values %countries)
69 my @servers = sort { $b->{priority} <=> $a->{priority} || $a->{distance} <=> $b->{distance} } @{$country->{servers}};
70 my $server = $servers->{$servers[0]->{name}};
71 my $clon = $country->{lon};
72 my $clat = $country->{lat};
73 my $slon = $server->{lon};
74 my $slat = $server->{lat};
76 if ($clon > 0 && $slon < 0 && 360 + $slon - $clon < $clon - $slon)
81 $zonefile->print("C\L$country->{code}\E.${zone}:$servers[0]->{name}.${zone}:600\n");
83 $kmlwriter->startTag("Placemark");
84 $kmlwriter->dataElement("name", $country->{name});
85 $kmlwriter->startTag("LineString");
86 $kmlwriter->dataElement("coordinates", "$clon,$clat $slon,$slat");
87 $kmlwriter->endTag("LineString");
88 $kmlwriter->endTag("Placemark");
91 foreach my $server (keys %$servers)
93 $zonefile->print("Cxx.${zone}:${server}.${zone}:600\n");
96 $kmlwriter->endTag("Document");
97 $kmlwriter->endTag("kml");
110 return ( $south + $north ) / 2;
121 $lon = ( $west + $east ) / 2;
125 $lon = ( $west + $east + 360 ) / 2;
128 $lon = $lon - 360 if $lon > 180;
137 my $continent = shift;
140 if ($server->{preferred} &&
141 $server->{preferred}->{countries} &&
142 grep { $_ eq $country } @{$server->{preferred}->{countries}})
144 $match = "preferred";
146 elsif ($server->{preferred} &&
147 $server->{preferred}->{continents} &&
148 grep { $_ eq $continent } @{$server->{preferred}->{continents}})
150 $match = "preferred";
152 elsif ($server->{allowed} &&
153 $server->{allowed}->{countries} &&
154 grep { $_ eq $country } @{$server->{allowed}->{countries}})
158 elsif ($server->{allowed} &&
159 $server->{allowed}->{continents} &&
160 grep { $_ eq $continent } @{$server->{allowed}->{continents}})
164 elsif ($server->{allowed})
178 my $lat1 = deg2rad(shift);
179 my $lon1 = deg2rad(shift);
180 my $lat2 = deg2rad(shift);
181 my $lon2 = deg2rad(shift);
183 return great_circle_distance($lon1, pip2 - $lat1, $lon2, pip2 - $lat2);