Subject: Python Plotting Changesv1.1

Description: Below changes were made for python plotting.
      1. Changes in newProject.py
      2.Changes in KicadtoNgspice.py
      3.Added new file pythonPlotting.py
      4.Added matplot package in the installation script

1 files changed, 696 insertions, 0 deletions

diff --git a/OSCAD/forntEnd/pythonPlotting.py b/OSCAD/forntEnd/pythonPlotting.py
new file mode 100755
index 0000000..3564aab
--- /dev/null
+++ b/OSCAD/forntEnd/pythonPlotting.py
@@ -0,0 +1,696 @@
+from __future__ import division         # Used for decimal division eg 2/3=0.66 and not '0' 6/2=3.0 and 6//2=3
+import sys, os
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+from PyQt4 import QtGui, uic
+from PyQt4 import QtCore
+from decimal import *
+import matplotlib
+from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
+from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
+from matplotlib.figure import Figure
+import tkMessageBox
+
+
+class File_data:
+    def __init__(self,parent=None):
+
+        self.data=[]		#consists of all the columns of data belonging to nodes and branches
+        self.y=[]		#stores y-axis data
+        self.x=[]		#stores x-axis data
+
+#new function for finding no of points to be plotted:
+
+    def numberFinder(self,fpath):
+
+	with open (fpath+"/analysis") as f3:
+	    info = f3.read()
+	
+	info = info.split(" ")
+	#info[0] = info[0][-3:]
+	#print info
+
+	with open (fpath+"/plot_data_v.txt") as f2:
+            ilines = f2.read()
+
+	p = l = vnumber = inumber = 0
+	ilines = ilines.split("\n")	
+	
+	for i in ilines[3:]:
+	    if "V(" in i or "x1" in i or "u3" in i:	#it has possible names of voltage nodes in ngspice
+		vnumber+=1	
+	#print "vno:",vnumber
+
+	# for finding no of branches:
+
+	with open (fpath+"/plot_data_i.txt") as f2:
+            current = f2.read()
+
+	
+	current = current.split("\n")	
+	
+	for i in current[3:]:
+	    if "#branch" in i:
+		inumber+=1	
+	#print "current no:",inumber
+	
+	dec = 0	
+
+	# For AC:
+	if info[0][-3:]==".ac":	
+					
+	    if "dec" in info:
+	    	dec = 1
+
+	    for i in ilines[3:]:
+	        p+=1			#'p' gives no. of lines of data for each node/branch 
+	        if "Index" in i:      
+		    l+=1		# 'l' gives the no of partitions for a single voltage node
+	        #print "l:",l
+	        if "AC" in i:    #DC for dc files and AC for ac ones
+		    break
+	    analysis_type = 0
+
+	elif ".tran" in info:
+	    analysis_type = 1
+	    for i in ilines[3:]:
+	        p+=1
+	        if "Index" in i:      
+		    l+=1		# 'l' gives the no of partitions for a single voltage node
+	        #print "l:",l
+	        if "Transient" in i:    #DC for dc files and AC for ac ones
+		    break
+
+
+	# For DC:
+	else:
+	    for i in ilines[3:]:
+	    	p+=1
+	    	if "Index" in i:      
+		    l+=1		# 'l' gives the no of partitions for a single voltage node
+	    	#print "l:",l
+	    	if "DC" in i:    #DC for dc files and AC for ac ones
+		    break
+	    analysis_type = 2
+
+	
+	#if ac!=1:
+	vnumber = vnumber//l		#vnumber gives the no of voltage nodes
+	inumber  = inumber//l		#inumber gives the no of branches
+	#print "i'm p:",p
+	p=[p,vnumber,analysis_type,dec,inumber]
+	#print p
+	return p
+
+    def openFile(self,fpath):
+
+	# For Current:
+	
+	try:
+	    with open (fpath+"/plot_data_i.txt") as f2:   	#Checking whether the files Plot_data_i.txt
+                I = f2.read()					#  and plot_data_v.txt are present or not
+
+	    I = I.split("\n")
+	    self.butnamesi = []
+
+ 	    with open (fpath+"/plot_data_v.txt") as f1:
+                idata = f1.read()
+
+        except:
+	    tkMessageBox.showinfo("Warning!!", "Click on KI->Ng button before simulation ")
+            exit(1)
+	try:
+	    for l in I[3].split(" "):
+	    	if len(l)>0:
+                    self.butnamesi.append(l)
+            self.butnamesi=self.butnamesi[2:]
+	    len_bnamesi = len(self.butnamesi)
+	    #print "length_new",len_bnamesi
+	    #print self.butnamesi
+	except:
+            tkMessageBox.showinfo("Warning!!", "Error in Analysis File")
+
+	d = self.numberFinder(fpath)
+	d1 = int(d[0] + 1)
+	#print "I'm D1:", d1  #for debugging
+	d2 = int(d[1])
+	d3 = d[2]
+	d4 = d[4]
+	#print "I'm D4:", d4  #for debugging
+	dec = [d3,d[3]]
+	#print "No. of Nodes:", d2
+	self.butnames=[]
+        idata=idata.split("\n")
+        for l in idata[3].split(" "):
+	    if len(l)>0:
+                self.butnames.append(l)
+        self.butnames=self.butnames[2:]
+	len_bnames = len(self.butnames)
+	#print len_bnames
+	#print self.butnames
+
+	ivals=[]
+        inum = len(idata[5].split("\t"))
+	inum_i = len(I[5].split("\t"))
+	#print inum
+	
+	full_data = []
+	
+	# Creating list of data:
+	if d3 < 3 :
+            
+	    for i in range(1,d2):
+
+		for l in idata[3+i*d1].split(" "):
+       	            if len(l)>0:
+                    	self.butnames.append(l)
+	    	self.butnames.pop(len_bnames)
+	    	self.butnames.pop(len_bnames)
+	    	len_bnames = len(self.butnames)
+	    	#print "volts:",self.butnames
+
+	    for n in range(1,d4):
+
+		for l in I[3+n*d1].split(" "):
+       	            if len(l)>0:
+                    	self.butnamesi.append(l)
+		#print "names:",self.butnamesi
+	    	self.butnamesi.pop(len_bnamesi)
+	    	self.butnamesi.pop(len_bnamesi)
+	    	len_bnamesi = len(self.butnamesi)
+	    	#print "current",self.butnamesi
+
+	    p=0
+            k = 0
+	    m=0
+
+	    for i in I[5:d1-1]:
+
+		#print "hello:"
+
+		if len(i.split("\t"))==inum_i:
+		    j2=i.split("\t")
+	 	    #print j2
+		    j2.pop(0)
+		    j2.pop(0)
+		    j2.pop()
+		    if d3 == 0:       #not in trans
+		        j2.pop()
+		    #print j2
+
+		    for l in range(1,d4):	
+           	    	j3 = I[5+l*d1+k].split("\t")
+		    	j3.pop(0)
+		    	j3.pop(0)
+		    	if d3==0:		    
+			    j3.pop()     #not required for dc
+		    	j3.pop()
+			j2 = j2 + j3
+		    	#print j2
+	    	    full_data.append(j2)
+		k+=1
+	    #print full_data		
+		
+
+	    for i in idata[5:d1-1]:
+
+		if len(i.split("\t"))==inum:
+		    j=i.split("\t")
+		    j.pop()
+		    if d3==0:
+		        j.pop()
+
+		    for l in range(1,d2):	
+           	    	j1 = idata[5+l*d1+p].split("\t")
+		    	j1.pop(0)
+		    	j1.pop(0)
+		    	if d3==0:		    
+			    j1.pop()     #not required for dc
+		 	if self.butnames[len(self.butnames)-1] == 'v-sweep': 		
+	    	            self.butnames.pop()
+			    j1.pop()
+			#if l==d2-1 and d3==2:
+			    #j1.pop()
+		    	j1.pop()
+		    	j = j + j1 
+		    #self.volts_length = len(j)-2		
+		    j = j + full_data[m]
+		    #print j
+		    m+=1
+		    #print j[:20]			
+		    j = "\t".join(j[1:])
+		    j = j.replace(",","")
+                    ivals.append(j)
+
+		p+=1
+
+            self.data = ivals
+	    #print self.data
+
+ 	#print "volts:",self.butnames
+	self.volts_length = len(self.butnames)
+ 	#print "volts_length:",self.volts_length
+	self.butnames = self.butnames + self.butnamesi
+	#print "new butnames:",self.butnames 
+	
+	#print self.data	
+	return dec
+	
+
+    def numVals(self):
+	a = self.volts_length		# No of voltage nodes
+	b = len(self.data[0].split("\t"))
+	#print "numvals:",b
+        return [b,a]
+
+    def computeAxes(self):
+        nums = len(self.data[0].split("\t"))
+	#print "i'm nums:",nums
+        self.y=[]
+        var=self.data[0].split("\t")
+        for i in range(1,nums):
+            self.y.append([Decimal(var[i])])
+	#print self.y
+        #print y,nums
+        for i in self.data[1:]:
+            temp=i.split("\t")
+            for j in range(1,nums):
+                self.y[j-1].append(Decimal(temp[j]))
+	#print len(self.y)
+	#print self.y[3]
+
+        for i in self.data:
+            temp=i.split("\t")
+            self.x.append(Decimal(temp[0]))
+
+
+class Window(QMainWindow):
+    def __init__(self,fpath,projName, parent=None):
+        super(Window, self).__init__(parent)
+        #self.setWindowTitle('AC Analysis')
+	self.fpath=fpath
+        self.projName=projName
+        self.createMainFrame()
+        self.combo = []
+	self.combo1 = []
+	self.combo1_rev = []
+        
+    def createMainFrame(self):
+	
+        self.main_frame = QWidget()
+        self.dpi = 100
+        self.fig = Figure((7.0, 7.0), dpi=self.dpi)
+        self.canvas = FigureCanvas(self.fig)
+        self.canvas.setParent(self.main_frame)
+        self.axes = self.fig.add_subplot(111)
+        self.mpl_toolbar = NavigationToolbar(self.canvas, self.main_frame)
+	
+        left_vbox = QVBoxLayout()
+        left_vbox.addWidget(self.mpl_toolbar)
+	left_vbox.addWidget(self.canvas)
+
+        right_vbox = QVBoxLayout()
+	right_grid = QGridLayout()
+	top_grid = QGridLayout()
+
+        self.fobj = File_data()
+        plot_type = self.fobj.openFile(self.fpath)
+	#print "hi:",plot_type
+        self.fobj.computeAxes()
+        self.chkbox=[]
+	self.a = self.fobj.numVals()
+
+	########### Generating list of colours :
+        self.full_colors = ['r','b','g','y','c','m','k']#,(0.4,0.5,0.2),(0.1,0.4,0.9),(0.4,0.9,0.2),(0.9,0.4,0.9)]
+        self.color = []
+        for i in range(0,self.a[0]-1):
+            if i%7 == 0:
+                self.color.append(self.full_colors[0])
+            elif (i-1)%7 == 0:
+                self.color.append(self.full_colors[1])
+            elif (i-2)%7 == 0:
+                self.color.append(self.full_colors[2])
+            elif (i-3)%7 == 0:
+                self.color.append(self.full_colors[3])
+            elif (i-4)%7 == 0:
+                self.color.append(self.full_colors[4])
+            elif (i-5)%7 == 0:
+                self.color.append(self.full_colors[5])
+            elif (i-6)%7 == 0:
+                self.color.append(self.full_colors[6])
+
+	###########
+                
+	self.volts_length = self.a[1]
+	#print "I'm Volts length:",self.volts_length
+	self.heading1 = QLabel()
+	top_grid.addWidget(self.heading1,1,0)
+	self.heading2 = QLabel()
+	top_grid.addWidget(self.heading2,self.a[1]+2,0)
+        for i in range(0,self.a[1]):#a[0]-1
+            self.chkbox.append(QCheckBox(self.fobj.butnames[i]))
+	    self.chkbox[i].setToolTip('<b>Tick Me!</b>' )
+            top_grid.addWidget(self.chkbox[i],i+2,0)
+
+	for i in range(self.a[1],self.a[0]-1):#a[0]-1
+            self.chkbox.append(QCheckBox(self.fobj.butnames[i]))
+	    self.chkbox[i].setToolTip('<b>Tick Me!</b>' )
+            top_grid.addWidget(self.chkbox[i],i+3,0)
+	
+        self.clear = QPushButton("Clear")
+	self.Note = QLabel()
+	self.Note1 = QLabel()
+	self.Note2 = QLabel()
+	
+	self.btn = QPushButton("Plot")
+	self.btn.setToolTip('<b>Press</b> to Plot' )
+	self.text = QLineEdit()
+	self.funcLabel = QLabel()
+	self.palette1 = QPalette()
+	self.palette2 = QPalette()
+	self.btn1 = QPushButton("Plot Function")
+	self.btn1.setToolTip('<b>Press</b> to Plot the function' )
+
+	self.palette1.setColor(QtGui.QPalette.Foreground,QtCore.Qt.blue)
+	self.palette2.setColor(QtGui.QPalette.Foreground,QtCore.Qt.red)
+        self.Note1.setPalette(self.palette1)
+        self.Note2.setPalette(self.palette2)
+
+	right_vbox.addLayout(top_grid)
+	right_vbox.addWidget(self.btn)
+	
+	right_grid.addWidget(self.funcLabel,1,0)
+        right_grid.addWidget(self.text,1,1)
+	right_grid.addWidget(self.btn1,2,1)	
+	right_grid.addWidget(self.clear,2,0)
+	right_grid.addWidget(self.Note,3,0)
+	right_grid.addWidget(self.Note1,4,0)
+	right_grid.addWidget(self.Note2,4,1)
+	
+	right_vbox.addLayout(right_grid)
+
+  	netlist = QTextEdit()
+        with open (self.fpath+"/"+self.projName+'.cir.out') as f2:
+            fdata = f2.read()
+        netlist.setText(fdata)
+        netlist.setReadOnly(True)
+
+	'''down_box = QHBoxLayout()
+        down_box.addWidget(netlist)
+
+        left_vbox.addLayout(down_box)'''
+	left_vbox.addWidget(netlist)
+        
+        hbox = QHBoxLayout()
+        hbox.addLayout(left_vbox)
+        hbox.addLayout(right_vbox)
+
+	'''finalvbox = QVBoxLayout()
+        finalvbox.addLayout(hbox)'''
+
+        widget = QWidget()
+        widget.setLayout(hbox)#finalvbox
+       	self.scrollArea = QScrollArea()
+       	self.scrollArea.setWidgetResizable(True)
+        self.scrollArea.setWidget(widget)
+
+        finalhbox = QHBoxLayout()
+        finalhbox.addWidget(self.scrollArea)
+
+        self.main_frame.setLayout(finalhbox)
+
+        self.showMaximized()
+	
+	self.heading1.setText("<font color='indigo'>List of Nodes:</font>")
+
+	self.heading2.setText("<font color='indigo'>List of Branches:</font>")	
+
+	self.funcLabel.setText("<font color='indigo'>Function:</font>")
+	
+	self.Note1.setText("<font color='indigo'>Examples:</font>\
+			    <br><br>Addition:<br>Subtraction:<br>Multiplication:<br>Division:<br>Comparison:")
+
+	self.Note2.setText("\n\n"+self.fobj.butnames[0]+" + "+self.fobj.butnames[1]+"\n"+self.fobj.butnames[0]+" - "+self.fobj.butnames[1]+ \
+			   "\n"+self.fobj.butnames[0]+" * "+self.fobj.butnames[1]+"\n"+self.fobj.butnames[0]+" / "+self.fobj.butnames[1]+ \
+                           "\n"+self.fobj.butnames[0]+" vs "+self.fobj.butnames[1])
+	
+
+	self.connect(self.clear,SIGNAL('clicked()'),self.pushedClear)
+
+	self.connect(self.btn1,SIGNAL('clicked()'), self.pushedPlotFunc)
+
+	if plot_type[0]==0:
+
+	    self.setWindowTitle('AC Analysis')
+	    if plot_type[1]==1:
+	
+            	self.connect(self.btn, SIGNAL('clicked()'), self.onPush_decade)
+		
+	    else:
+	
+		self.connect(self.btn, SIGNAL('clicked()'), self.onPush_ac)
+
+	elif plot_type[0]==1:
+
+	    self.setWindowTitle('Transient Analysis')
+	    self.connect(self.btn, SIGNAL('clicked()'), self.onPush_trans)
+
+	else:
+
+	    self.setWindowTitle('DC Analysis')
+	    self.connect(self.btn, SIGNAL('clicked()'), self.onPush_dc)
+
+        self.setCentralWidget(self.main_frame)	
+	
+
+    def pushedPlotFunc(self):
+	
+	self.parts = str(self.text.text())
+	self.parts = self.parts.split(" ")
+	#print self.parts
+	if self.parts[len(self.parts)-1] == '':
+	    self.parts = self.parts[0:-1]
+	#print self.parts
+	self.values = self.parts
+	self.comboAll = []
+	self.axes.cla()
+	plot_type2 = self.fobj.openFile(self.fpath)
+
+	if len(self.parts) <= 2:
+	    self.Note.setText("Too few arguments!\nRefer syntax below!")
+	    QMessageBox.about(self, "Warning!!", "Too Few Arguments/SYNTAX Error!\n Refer Examples")
+	else:
+	    self.Note.setText("")
+
+	a = []
+	finalResult  = []
+	p = 0
+	#print "values:",self.values
+	#print "parts:",self.parts
+
+	for i in range(len(self.parts)):
+	    #print "hello"
+	    if i%2 == 0:
+		#print "I'm in:"
+		for j in range(len(self.fobj.butnames)):
+            	    if self.parts[i]==self.fobj.butnames[j]:
+		        #print "I got you:",i
+		    	a.append(j)
+
+	#print "positions",a
+
+	if len(a) != len(self.parts)//2 + 1:
+	    QMessageBox.about(self, "Warning!!", "One of the operands doesn't belong to the above list!!")		
+
+	for i in a:
+	    self.comboAll.append(self.fobj.y[i])
+
+	#print self.comboAll	    
+
+	for i in range(len(a)):
+	
+	    if a[i] == len(self.fobj.butnames): 
+		QMessageBox.about(self, "Warning!!", "One of the operands doesn't belong to the above list!!")
+		self.Note.setText("<font color='red'>To Err Is Human!<br>One of the operands doesn't belong to the above list!!</font>")
+
+	if self.parts[1] == 'vs':
+	    
+	    if len(self.parts) > 3:
+	        self.Note.setText("Enter two operands only!!")
+ 	        QMessageBox.about(self, "Warning!!", "Recheck the expression syntax!")
+
+	    else:
+                self.axes.cla()
+	        #print "plotting wait"
+   	        for i in range(len(self.fobj.y[a[0]])):
+	            self.combo.append(self.fobj.y[a[0]][i]) 
+		    self.combo1.append(self.fobj.y[a[1]][i])
+	        
+	        '''for i in reversed(self.combo1):
+	    	    self.combo1_rev.append(i)''' 	
+	        #print self.combo
+	        #print "\ncombo1_rev\n",self.combo1_rev
+	        self.axes.plot(self.combo,self.combo1,c=self.color[1],label=str(2))#_rev
+	        if max(a) < self.volts_length:
+	            self.axes.set_ylabel('Voltage(V)-->')
+		    self.axes.set_xlabel('Voltage(V)-->')
+	        else:
+	            self.axes.set_ylabel('Current(I)-->')
+	            self.axes.set_ylabel('Current(I)-->')	    
+
+
+	elif max(a) >= self.volts_length and min(a) < self.volts_length:
+	    QMessageBox.about(self, "Warning!!", "Do not combine Voltage and Current!!")
+
+	else:
+
+	    for j in range(len(self.comboAll[0])):
+	        for i in range(len(self.values)):
+	            if i%2==0:
+	  	        self.values[i] = str(self.comboAll[i//2][j])
+		        re = " ".join(self.values[:])
+		        #print re
+		try:
+	            finalResult.append(eval(re))
+		except ArithmeticError:
+		    QMessageBox.about(self, "Warning!!", "Dividing by zero!!")
+	    ############################################
+	    if plot_type2[0]==0:
+
+	        self.setWindowTitle('AC Analysis')
+	        if plot_type2[1]==1:
+	
+                    self.axes.semilogx(self.fobj.x,finalResult,c=self.color[0],label=str(1))
+		
+	        else:
+	
+	            self.axes.plot(self.fobj.x,finalResult,c=self.color[0],label=str(1))	    
+		self.axes.set_xlabel('freq-->')
+	        if max(a) < self.volts_length:
+	            self.axes.set_ylabel('Voltage(V)-->')
+	        else:
+	            self.axes.set_ylabel('Current(I)-->')	    
+
+
+	    elif plot_type2[0]==1:
+
+	        self.setWindowTitle('Transient Analysis')
+	        self.axes.plot(self.fobj.x,finalResult,c=self.color[0],label=str(1))	
+		self.axes.set_xlabel('time-->')
+	        if max(a) < self.volts_length:
+	            self.axes.set_ylabel('Voltage(V)-->')
+	        else:
+	            self.axes.set_ylabel('Current(I)-->')	    
+    
+
+	    else:
+
+	        self.setWindowTitle('DC Analysis')
+                self.axes.plot(self.fobj.x,finalResult,c=self.color[0],label=str(1))
+		self.axes.set_xlabel('I/P Voltage-->')
+	        if max(a) < self.volts_length:
+	            self.axes.set_ylabel('Voltage(V)-->')
+	        else:
+	            self.axes.set_ylabel('Current(I)-->')	    
+	    
+	    ##########################################
+   		    
+            #self.axes.plot(self.fobj.x,finalResult,c=self.color[0],label=str(1))	    
+
+
+	self.axes.grid(True)
+	self.canvas.draw()
+	self.combo = []
+	self.combo1 = []
+	self.combo1_rev = []
+	#print "succes:",self.parts
+
+    def pushedClear(self):
+
+	self.text.clear()
+	self.axes.cla()
+	self.canvas.draw()
+	QtCore.SLOT('quit()')
+
+    def onPush_ac(self):
+        self.axes.cla()
+        boxCheck = 0
+        for i,j in zip(self.chkbox,range(len(self.chkbox))):
+            if i.isChecked():
+		boxCheck += 1
+                self.axes.plot(self.fobj.x,self.fobj.y[j],c=self.color[j],label=str(j+1))
+		self.axes.set_xlabel('freq-->')
+		if j < self.volts_length:
+		    self.axes.set_ylabel('Voltage(V)-->')
+		else:
+		    self.axes.set_ylabel('Current(I)-->')
+		self.axes.grid(True)
+	if boxCheck == 0:
+	    QMessageBox.about(self, "Warning!!","Please select atleast one Node OR Branch")
+        self.canvas.draw()
+                     
+
+    def onPush_decade(self):
+	boxCheck = 0
+        self.axes.cla()
+
+        for i,j in zip(self.chkbox,range(len(self.chkbox))):
+            if i.isChecked():
+		boxCheck += 1
+                self.axes.semilogx(self.fobj.x,self.fobj.y[j],c=self.color[j],label=str(j+1))
+		if j < self.volts_length:
+		    self.axes.set_ylabel('Voltage(V)-->')
+		else:
+		    self.axes.set_ylabel('Current(I)-->')
+		self.axes.set_xlabel('freq-->')
+		self.axes.grid(True)
+	if boxCheck == 0:
+	    QMessageBox.about(self, "Warning!!","Please select atleast one Node OR Branch")		
+        self.canvas.draw()
+
+    def onPush_trans(self):
+	boxCheck = 0
+        self.axes.cla()
+        for i,j in zip(self.chkbox,range(len(self.chkbox))):
+            if i.isChecked():
+		boxCheck += 1
+	 	#print self.fobj.y[j]
+                self.axes.plot(self.fobj.x,self.fobj.y[j],c=self.color[j],label=str(j+1))
+		self.axes.set_xlabel('time-->')
+
+		if j < self.volts_length:
+		    self.axes.set_ylabel('Voltage(V)-->')
+
+		else:
+		    self.axes.set_ylabel('Current(I)-->')
+		self.axes.grid(True)
+	if boxCheck == 0:
+	    QMessageBox.about(self,"Warning!!", "Please select atleast one Node OR Branch")
+        self.canvas.draw()
+
+    def onPush_dc(self):
+	boxCheck = 0
+        self.axes.cla()	
+        for i,j in zip(self.chkbox,range(len(self.chkbox))):
+            if i.isChecked():
+		boxCheck += 1
+                self.axes.plot(self.fobj.x,self.fobj.y[j],c=self.color[j],label=str(j+1))
+		self.axes.set_xlabel('Voltage Sweep(V)-->')
+
+		if j < self.volts_length:
+		    self.axes.set_ylabel('Voltage(V)-->')
+		else:
+		    self.axes.set_ylabel('Current(I)-->')
+		self.axes.grid(True)
+	if boxCheck == 0:
+	    QMessageBox.about(self,"Warning!!", "Please select atleast one Node OR Branch")
+        self.canvas.draw() 
+
+if __name__=="__main__":
+    app = QtGui.QApplication(sys.argv)
+    fpath = sys.argv[1]
+    projName = sys.argv[2]
+    global main
+    main = Window(fpath,projName)
+    main.show()
+    sys.exit(app.exec_())