Map::Tube::Plugin::Graph - Graph plugin for Map::Tube.
It's a graph plugin for Map::Tube to create map of individual lines defined as Moo Role. Once installed, it gets plugged into Map::Tube::* family.
use strict; use warnings;
my $tube = Map::Tube::London->new;
# Entire map image
my $name = $tube->name;
open(my $MAP_IMAGE, ">", "$name.png")
or die "ERROR: Can't open [$name.png]: $!";
print $MAP_IMAGE decode_base64($tube->as_image);
# Just a particular line map image
my $line = 'Bakerloo';
open(my $LINE_IMAGE, ">", "$line.png")
or die "ERROR: Can't open [$line.png]: $!";
print $LINE_IMAGE decode_base64($tube->as_image($line));
The plugin primarily depends on GraphViz2 library. But the GraphViz2 can only be installed if the perl v5.014002 or above is installed. If your perl environment satisfies this requirement then ignore the rest of instructions.
Having said that I still managed to install GraphViz2 on my box with perl 5.10.1. It requires a bit of nasty hack. If you are willing to do then follow the steps below:
Download the tar ball from CPAN. e.g. wget http://search.cpan.org/CPAN/authors/id/R/RS/RSAVAGE/GraphViz2-2.34.tgz
Extract the tar ball i.e. tar -xvzf GraphViz2-2.34.tgz
Change directory to GraphViz2-2.34 i.e. cd GraphViz2-2.34
Edit the Makefile.PL and comment the line (no: 11) that says: require 5.014002; # For the utf8 stuff.
Now follow the usual command to make/test/install. If it complains about missing package then install it on demand one at a time.
The $line_name param is optional.If it's passed, the method returns the base64 encoded string of the given line map. Otherwise you would get the entire map as base64 encoded string.
See "SYNOPSIS" for more details on how it can be used.
Mohammad S Anwar, <mohammad.anwar at yahoo.com>
<mohammad.anwar at yahoo.com>
Gisbert W. Selke
Please report any bugs or feature requests to bug-map-tube at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Map-Tube-Plugin-Graph. I will be notified and then you'll automatically be notified of progress on your bug as I make changes.
bug-map-tube at rt.cpan.org
You can find documentation for this module with the perldoc command.
You can also look for information at:
RT: CPAN's request tracker (report bugs here)
AnnoCPAN: Annotated CPAN documentation
Copyright (C) 2015 - 2017 Mohammad S Anwar.
This program is free software; you can redistribute it and / or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:
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To install Map::Tube::Plugin::Graph, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.