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Erwin Data Structures 2.1.88591 (Default branch)
08-28-2008
The Erwin library is a very efficient and robust data structure templatelibrary for C and C++. No templates are used; a Perl script generatesC files. Vectors (dynamic arrays), lists, and hash tables (maps) ofarbitrary key and value types are provided. Several tools are includedfor auto-generating a C interface around C++ libraries, C++ extensionslike slots/properties, symbol (=hashed string) management, sophisticatedassertion macros, and documentation extraction.License: Freely DistributableChanges:|
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GraphViz::Data::Grapher(3pm) User Contributed Perl Documentation GraphViz::Data::Grapher(3pm) NAME
GraphViz::Data::Grapher - Visualise data structures as a graph SYNOPSIS
use GraphViz::Data::Grapher; my $graph = GraphViz::Data::Grapher->new($structure); print $graph->as_png; DESCRIPTION
This module makes it easy to visualise Perl data structures. Data structures can grow quite large and it can be hard to understand the quite how the structure fits together. Data::Dumper can help by representing the structure as a text heirarchy, but GraphViz::Data::Grapher goes a step further and visualises the structure by drawing a graph which represents the data structure. Arrays are represented by records. Scalars are represented by themselves. Array references are represented by a '@' symbol, which is linked to the array. Hash references are represented by a '%' symbol, which is linked to an array of keys, which each link to their value. Object references are represented by 'Object', which then links to the type of the object. Undef is represented by 'undef'. METHODS
new This is the constructor. It takes a list, which is the data structure to be visualised. A GraphViz object is returned. my $graph = GraphViz::Data::Grapher->new([3, 4, 5], "Hello"); as_* The data structure can be visualised in a number of different graphical formats. Methods include as_ps, as_hpgl, as_pcl, as_mif, as_pic, as_gd, as_gd2, as_gif, as_jpeg, as_png, as_wbmp, as_ismap, as_imap, as_vrml, as_vtx, as_mp, as_fig, as_svg. See the GraphViz documentation for more information. The two most common methods are: # Print out a PNG-format file print $graph->as_png; # Print out a PostScript-format file print $graph->as_ps; AUTHOR
Leon Brocard <acme@astray.com> COPYRIGHT
Copyright (C) 2000-1, Leon Brocard This module is free software; you can redistribute it or modify it under the same terms as Perl itself. perl v5.14.2 2012-04-02 GraphViz::Data::Grapher(3pm)