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

SYNOPSIS
     use Map::Tube::Nanjing;
     my $obj = Map::Tube::Nanjing->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 Nanjing Map, click here
    <https://en.wikipedia.org/wiki/Nanjing_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 Nanjing metro.
             Returns string with XML.

EXAMPLE1
     use strict;
     use warnings;

     use Encode qw(decode_utf8 encode_utf8);
     use Map::Tube::Nanjing;

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

     # Get route.
     my $route = $obj->get_shortest_route(decode_utf8('鮠捺・シ'), decode_utf8('螟ァ蜴�'));

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

     # Output:
     # Route: 鮠捺・シ (蜊嶺コャ蝨ー體�1蜿キ郤ソ), 螟ァ蜴� (螳∝、ゥ蝓朱刔霓ィ驕謎コ、騾�)

EXAMPLE2
     use strict;
     use warnings;

     use Map::Tube::Nanjing;

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

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

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

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

EXAMPLE3
     use strict;
     use warnings;

     use Map::Tube::GraphViz;
     use Map::Tube::GraphViz::Utils qw(node_color_without_label);
     use Map::Tube::Nanjing;

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

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

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

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

     # Output like:
     # -rw-r--r-- 1 skim skim 336513 21. led 21.02 Nanjing.png

EXAMPLE4
     use strict;
     use warnings;

     use Encode qw(encode_utf8);
     use Map::Tube::Nanjing;

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

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

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

     # Output:
     # 蜊嶺コャ蝨ー體�10蜿キ郤ソ
     # 蜊嶺コャ蝨ー體�1蜿キ郤ソ
     # 蜊嶺コャ蝨ー體�2蜿キ郤ソ
     # 蜊嶺コャ蝨ー體�3蜿キ郤ソ
     # 螳∝、ゥ蝓朱刔霓ィ驕謎コ、騾�
     # 螳�ォ伜沁髯�スィ驕謎コ、騾�

EXAMPLE5
     use strict;
     use warnings;

     use Encode qw(decode_utf8 encode_utf8);
     use Map::Tube::Nanjing;

     # Arguments.
     if (@ARGV < 1) {
             print STDERR "Usage: $0 line\n";
             exit 1;
     }
     my $line = decode_utf8($ARGV[0]);

     # Object.
     my $obj = Map::Tube::Nanjing->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 '蜊嶺コャ蝨ー體�1蜿キ郤ソ' argument.
     # 霑育嚥譯・
     # 郤「螻ア蜉ィ迚ゥ蝗ュ
     # 蜊嶺コャ遶�
     # 譁ー讓。闌�ゥャ霍ッ
     # 邇�ュヲ髣ィ
     # 鮠捺・シ
     # 迴�豎溯キッ
     # 譁ー陦怜哨
     # 蠑�蠎懷岶
     # 荳牙アア陦�
     # 荳ュ蜊朱葎
     # 螳牙セキ髣ィ
     # 螟ゥ髫�ッコ
     # 霓ッ莉カ螟ァ驕�
     # 闃ア逾槫コ�
     # 蜊嶺コャ蜊礼ォ�
     # 蜿碁セ吝、ァ驕�
     # 豐ウ螳壽。・
     # 閭懷、ェ霍ッ
     # 逋セ螳カ貉�
     # 蟆城セ呎ケセ
     # 遶ケ螻ア霍ッ
     # 螟ゥ蜊ー螟ァ驕�
     # 鮴咏悛螟ァ驕�
     # 蜊怜現螟ァツキ豎溯居扈剰エク蟄ヲ髯「
     # 蜊嶺コャ莠、髯「
     # 荳ュ蝗ス闕ッ遘大、ァ蟄ヲ

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-Nanjing>

AUTHOR
    Michal Josef ナ�paト稿k <mailto:skim@cpan.org>

    <http://skim.cz>

LICENSE AND COPYRIGHT
     ツゥ 2014-2025 Michal Josef ナ�paト稿k
     Artistic License
     BSD 2-Clause License

VERSION
    0.05