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# This file is part of Soar-WM-Grapher |
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# |
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# This software is copyright (c) 2012 by Nathan Glenn. |
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# |
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# This is free software; you can redistribute it and/or modify it under |
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# the same terms as the Perl 5 programming language system itself. |
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# |
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package Soar::WM::Grapher; |
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# ABSTRACT: Utility for creating graphs of Soar's working memory |
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use strict; |
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use warnings; |
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use Carp; |
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use Soar::WM qw(wm_root_from_file); |
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use GraphViz; |
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use base qw(Exporter); |
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our @EXPORT_OK = qw(wm_graph); |
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use feature 'state'; |
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our $VERSION = '0.02'; # VERSION |
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# print wm_graph(@ARGV)->as_svg('lawyers.svg') unless caller; |
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if ( !caller ) { |
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my $wm = Soar::WM->new( file => shift() ); |
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my $g = wm_graph( |
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$wm, @ARGV, |
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layout => 'twopi', |
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ratio => 'compress', |
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overlap => 'scale' |
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); |
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$g->as_svg('wm_graph.svg'); |
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} |
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# wm_graph(@ARGV) unless caller; |
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sub wm_graph { |
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my ( $wm, $id, $depth, @graph_args ) = @_; |
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if ( !( $wm && $id && $depth ) ) { |
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carp 'Usage: get_graph(filename, wme_id, depth)'; |
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return; |
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} |
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if ( $depth < 1 ) { |
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carp 'depth argument must be 1 or more'; |
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return; |
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} |
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my $wme = $wm->get_wme($id); |
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my $g = GraphViz->new(@graph_args); #edge=>{arrowhead=>'none'} |
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#begin graph by adding first WME |
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$g->add_node( name => $wme->id, color => 'red' ); |
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return _recurse( $wme, $depth, $g ); |
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} |
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#recursively create GraphViz object |
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sub _recurse { |
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my ( $wme, $depth, $g ) = @_; |
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#counter is used to prevent nodes from having the same name. Should work as long as |
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#the number of nodes with the same name doesn't exceed your machine's integer size. |
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state $counter = 0; |
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#base case: depth is 0 |
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return if !$depth; |
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$depth--; |
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#iterate attributes and their values |
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for my $att ( @{ $wme->atts } ) { |
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for my $val ( @{ $wme->vals($att) } ) { |
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if ( ref $val eq 'Soar::WM::Element' ) { |
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# print "edge from " . $wme->id . " to " . $val->id . " named $att\n"; |
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#add an edge from parent to att value; label edge with att name |
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$g->add_edge( $wme->id => $val->id, label => $att ); |
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_recurse( $val, $depth, $g ); |
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} |
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else { |
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#add value as a node, making sure its name is unique. |
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my $val_node_name = $val . $counter; |
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$counter++; |
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$g->add_node( label => $val, name => $val_node_name ); |
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$g->add_edge( $wme->id => $val_node_name, label => $att ); |
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} |
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} |
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} |
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return $g; |
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} |
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1; |
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__END__ |