8a9d66d001
handle evidence on children and root nodes. make graphviz call on top-level.
72 lines
1.7 KiB
Prolog
72 lines
1.7 KiB
Prolog
:- module(clpbn_gviz, [clpbn2gviz/4]).
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clpbn2gviz(Stream, Name, Network, Output) :-
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format(Stream, 'digraph ~w {
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graph [ rankdir="LR" ];~n',[Name]),
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output_vars(Stream, Network),
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info_ouput(Stream, Output),
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format(Stream, '}~n',[]).
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output_vars(_, []).
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output_vars(Stream, [V|Vs]) :-
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output_var(Stream, V),
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output_vars(Stream, Vs).
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output_var(Stream, V) :-
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clpbn:get_atts(V,[key(Key),evidence(_)]),
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output_key(Stream,Key),
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format(Stream, ' [ shape=box, style=filled, fillcolor=red, fontsize=18.0 ]~n',[]),
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fail.
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output_var(Stream, V) :-
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clpbn:get_atts(V,[key(Key),dist(_,Parents)]),
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Parents = [_|_], !,
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format(Stream, ' ',[]),
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output_parents(Stream, Parents),
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format(' -> ',[]),
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output_key(Stream,Key),
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nl(Stream).
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output_var(_, _).
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info_ouput(_, []).
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info_ouput(Stream, [V|Output]) :-
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clpbn:get_atts(V,[key(Key)]),
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output_key(Stream,Key),
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format(Stream, ' [ shape=box, style=filled, fillcolor=green, fontsize=18.0 ]~n',[]),
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info_ouput(Stream, Output).
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output_parents(Stream, [V]) :- !,
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clpbn:get_atts(V,[key(Key)]),
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output_key(Stream,Key).
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output_parents(Stream, L) :-
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format(Stream,'{ ',[]),
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output_parents1(Stream,L),
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format(Stream,'}',[]).
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output_parents1(_,[]).
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output_parents1(Stream,[V|L]) :-
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clpbn:get_atts(V,[key(Key)]),
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output_key(Stream,Key),
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put_code(Stream, 0' ),
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output_parents1(Stream,L).
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output_key(Stream, Key) :-
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output_key(Stream, 0, Key).
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output_key(Stream, _, Key) :-
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primitive(Key), !,
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write(Stream, Key).
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output_key(Stream, I0, Key) :-
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Key =.. [Name|Args],
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write(Stream, Name),
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I is I0+1,
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output_key_args(Stream, I, Args).
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output_key_args(_, _, []).
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output_key_args(Stream, I, [Arg|Args]) :-
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format(Stream, '~*c', [I,0'_]),
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output_key(Stream, I, Arg),
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output_key_args(Stream, I, Args).
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