Working steps

code/main.py

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+'''
+Author : Harika Rajavaram
+Email : [email protected]
+Subject : Main File
+Description: rules to generate latex code for nodes, edges (location of node and edge placement is hardcoded)
+'''
+
+import json
+
+graphFile = open('../graph2.json','r')
+# loading the file in json format and reading it
+file_string = json.loads(graphFile.read())
+stable_nodes = file_string["stable"][0].keys()
+unstable_nodes = file_string["unstable"][0].keys()
+nodes = stable_nodes + unstable_nodes
+
+# pre-defined input alphabet
+alphabet = ["0","1"]
+
+#for i in stable_nodes:
+#	print file_string["stable"][0][i][0]
+#	print file_string["stable"][0][i][1]
+
+def genbegin():
+	print "\\begin{document}"
+	print "\\begin{center}"
+
+# function to generate nodes
+def genNodes(nodes,Refnode,direction):
+	for nodeName in nodes:
+		print genNodeState(nodeName) + nodeName + genNodeLoc(Refnode,direction) + genNodeVar(nodeName)
+
+# hepler function for genNodes function
+def genNodeVar(nodeName):
+	return " {$"+nodeName+"$}";
+
+# hepler function for genNodes function
+def genNodeLoc(Refnode,direction):
+	return  " ["+direction+"="+Refnode+"]" 
+
+# hepler function for genNodes function
+def genNodeState(nodeName):
+	if(nodeName in stable_nodes):
+		return "\\node[state,accepting] "
+	else:
+		return "\\node[state] "
+
+# function to generate edges
+def genEdges(stable_nodes,unstable_nodes,alphabet,direction,angle):
+	for nodeName in stable_nodes:
+		for i in alphabet:	
+			print nodeName + genEdgeLoc(direction,angle,i) +  file_string["stable"][0][nodeName][int(i)]["to"]
+	for nodeName in unstable_nodes:
+		for i in alphabet:	
+			print nodeName + genEdgeLoc(direction,angle,i) +  file_string["unstable"][0][nodeName][int(i)]["to"]
+
+# hepler function for genEdges function
+def genEdgeLoc(direction,angle,input):
+	return " egde " + "["+direction+"="+angle+"] node {"+ input +"} " 
+
+
+
+#invoking the functions
+genbegin()
+genNodes(nodes,"A","right of")
+print "\path"
+genEdges(stable_nodes,unstable_nodes,alphabet,"bend left","20")

graph2.json

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+{
+	"stable":[{
+		"D":[{"val":1,"to":"E"},{"val":0,"to":"D"}],
+		"F":[{"val":1,"to":"E"},{"val":0,"to":"D"}],
+		"G":[{"val":1,"to":"G"},{"val":0,"to":"F"}]
+		}],
+	"unstable":[{
+		"A":[{"val":0,"to":"B"},{"val":1,"to":"C"}],
+		"B":[{"val":1,"to":"E"},{"val":0,"to":"D"}],
+		"C":[{"val":0,"to":"F"},{"val":1,"to":"G"}],
+		"E":[{"val":1,"to":"G"},{"val":0,"to":"F"}]
+		}]
+}

lib.txt

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+\documentclass{article}
+
+\usepackage{pgf}
+\usepackage[utf8]{inputenc}
+\usepackage{tikz}
+\usetikzlibrary{arrows,automata,positioning}