NAME
    Map::Tube::Prague - Interface to the Prague Metro Map.

SYNOPSIS
     use Map::Tube::Prague;

     my $obj = Map::Tube::Prague->new;
     my $routes_ar = $obj->get_all_routes($from, $to);
     my $line = $obj->get_line_by_id($line_id);
     my $line = $obj->get_line_by_name($line_name);
     my $lines_ar = $obj->get_lines;
     my $station = $obj->get_node_by_id($station_id);
     my $station = $obj->get_node_by_name($station_name);
     my $route = $obj->get_shortest_route($from, $to);
     my $stations_ar = $obj->get_stations($line);
     my $metro_name = $obj->name;
     my $xml_file = $obj->xml;

DESCRIPTION
    It currently provides functionality to find the shortest route between
    the two given nodes.

    For more information about Prague Map, click here
    <https://en.wikipedia.org/wiki/Prague_Metro>.

METHODS
    "new()"
             Constructor.

    "get_all_routes($from, $to)" [EXPERIMENTAL]
             Get all routes from station to station.
             Returns reference to array with Map::Tube::Route objects.

    "get_line_by_id($line_id)"
             Get line object defined by id.
             Returns Map::Tube::Line object.

    "get_line_by_name($line_name)"
             Get line object defined by name.
             Returns Map::Tube::Line object.

    "get_lines()"
             Get lines in metro map.
             Returns reference to unsorted array with Map::Tube::Line objects.

    "get_node_by_id($station_id)"
             Get station node by id.
             Returns Map::Tube::Node object.

    "get_node_by_name($station_name)"
             Get station node by name.
             Returns Map::Tube::Node object.

    "get_shortest_route($from, $to)"
             Get shortest route between $from and $to node names. Node names in $from and $to are case insensitive.
             Returns Map::Tube::Route object.

    "get_stations($line)"
             Get list of stations for concrete metro line.
             Returns reference to array with Map::Tube::Node objects.

    "name()"
             Get metro name.
             Returns string with metro name.

    "xml()"
             Get XML specification of Prague metro.
             Returns string with XML.

EXAMPLE1
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Encode qw(decode_utf8 encode_utf8);
     use Map::Tube::Prague;

     # Object.
     my $obj = Map::Tube::Prague->new;

     # Get route.
     my $route = $obj->get_shortest_route(decode_utf8('Dejvická'), decode_utf8('Ládví'));

     # Print out type.
     print "Route: ".encode_utf8($route)."\n";

     # Output:
     # Route: Dejvická (Linka A), Hradčanská (Linka A), Malostranská (Linka A), Staroměstská (Linka A), Můstek (Linka A, Tunnel), Můstek (Linka B, Tunnel), Náměstí Republiky (Linka B), Florenc (Linka B, Tunnel), Florenc (Linka C, Tunnel), Vltavská (Linka C), Nádraží Holešovice (Linka C), Kobylisy (Linka C), Ládví (Linka C)

EXAMPLE2
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Map::Tube::Prague;

     # Object.
     my $obj = Map::Tube::Prague->new;

     # Get XML file.
     my $xml_file = $obj->xml;

     # Print out XML file.
     print "XML file: $xml_file\n";

     # Output like:
     # XML file: .*/prague-map.xml

EXAMPLE3
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Map::Tube::GraphViz;
     use Map::Tube::GraphViz::Utils qw(node_color_without_label);
     use Map::Tube::Prague;

     # Object.
     my $obj = Map::Tube::Prague->new;

     # GraphViz object.
     my $g = Map::Tube::GraphViz->new(
             'callback_node' => \&node_color_without_label,
             'tube' => $obj,
     );

     # Get graph to file.
     $g->graph('Prague.png');

     # Print file.
     system "ls -l Prague.png";

     # Output like:
     # -rw-r--r-- 1 skim skim 166110 Apr  6 23:12 Prague.png

EXAMPLE4
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Map::Tube::Prague;

     # Object.
     my $obj = Map::Tube::Prague->new;

     # Get lines.
     my $lines_ar = $obj->get_lines;

     # Print out.
     map { print $_->name."\n"; } sort @{$lines_ar};

     # Output:
     # Linka A
     # Linka B
     # Linka C

EXAMPLE5
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Encode qw(encode_utf8);
     use Map::Tube::Prague;

     # Arguments.
     if (@ARGV < 1) {
             print STDERR "Usage: $0 line\n";
             exit 1;
     }
     my $line = $ARGV[0];

     # Object.
     my $obj = Map::Tube::Prague->new;

     # Get stations for line.
     my $stations_ar = $obj->get_stations($line);

     # Print out.
     map { print encode_utf8($_->name)."\n"; } @{$stations_ar};

     # Output:
     # Usage: __PROG__ line

     # Output with 'foo' argument.
     # Map::Tube::get_stations(): ERROR: Invalid Line Name [foo]. (status: 105) file __PROG__ on line __LINE__

     # Output with 'Linka A' argument.
     # Nemocnice Motol
     # Petřiny
     # Nádraží Veleslavín
     # Bořislavka
     # Dejvická
     # Hradčanská
     # Malostranská
     # Staroměstská
     # Můstek
     # Muzeum
     # Náměstí Míru
     # Jiřího z Poděbrad
     # Flora
     # Želivského
     # Strašnická
     # Skalka
     # Depo Hostivař

DEPENDENCIES
    File::Share, Map::Tube, Moo, namespace::clean.

SEE ALSO
    Map::Tube
        Core library as Role (Moo) to process map data.

    Task::Map::Tube
        Install the Map::Tube modules.

    Task::Map::Tube::Metro
        Install the Map::Tube concrete metro modules.

REPOSITORY
    <https://github.com/tupinek/Map-Tube-Prague>

AUTHOR
    Michal Josef Špaček <mailto:skim@cpan.org>

    <http://skim.cz>

LICENSE AND COPYRIGHT
    © 2014-2020 Michal Josef Špaček

    Artistic License

    BSD 2-Clause License

VERSION
    0.14

