Added python script to convert RDF files to dot graphs.

git-svn-id: http://svn.drobilla.net/lad/machina@340 a436a847-0d15-0410-975c-d299462d15a1

2 files changed, 72 insertions, 0 deletions

diff --git a/util/Makefile.am b/util/Makefile.am
new file mode 100644
index 0000000..7186db5
--- /dev/null
+++ b/util/Makefile.am
@@ -0,0 +1 @@
+EXTRA_DIST = machina2dot.py
diff --git a/util/machina2dot.py b/util/machina2dot.py
new file mode 100755
index 0000000..bbf9725
--- /dev/null
+++ b/util/machina2dot.py
@@ -0,0 +1,71 @@
+#!/usr/bin/python
+
+import sys
+import RDF
+
+model  = RDF.Model()
+parser = RDF.Parser(name="guess")
+
+if len(sys.argv) != 2:
+	print "Usage: machina2dot FILE"
+	sys.exit(-1)
+
+parser.parse_into_model(model, "file:" + sys.argv[1])
+
+
+print """
+digraph finite_state_machine {
+	rankdir=LR;
+	size="8,5"
+	node [shape = doublecircle];
+""",
+
+
+initial_nodes = RDF.SPARQLQuery("""
+PREFIX machina: <http://drobilla.net/ns/machina#>
+SELECT ?n ?dur WHERE {
+	?m  machina:initialNode ?n .
+	?n  a                 machina:Node ;
+		machina:duration  ?dur .
+}
+""").execute(model)
+
+for result in initial_nodes:
+	print '\t', result['n'].blank_identifier, "[ label = \"",
+	print float(result['dur'].literal_value['string']),
+	print "\"]; "
+
+print "\tnode [shape = circle];"
+
+
+nodes = RDF.SPARQLQuery("""
+PREFIX machina: <http://drobilla.net/ns/machina#>
+SELECT ?n ?dur WHERE {
+	?m  machina:node      ?n .
+	?n  a                 machina:Node ;
+		machina:duration  ?dur .
+}
+""").execute(model)
+
+for result in nodes:
+	print '\t', result['n'].blank_identifier, "[ label = \"",
+	print float(result['dur'].literal_value['string']),
+	print "\"]; "
+
+
+edges = RDF.SPARQLQuery("""
+PREFIX machina: <http://drobilla.net/ns/machina#>
+SELECT ?tail ?head ?prob WHERE {
+	?e  a                   machina:Edge ;
+	    machina:tail        ?tail ;
+		machina:head        ?head ;
+		machina:probability ?prob .
+}
+""").execute(model);
+
+for result in edges:
+	print '\t', result['tail'].blank_identifier, ' -> ',
+	print result['head'].blank_identifier, ' ',
+	print "[ label = \"", result['prob'].literal_value['string'], "\" ];"
+
+print "\n}"