path: root/src/ngspiceSimulation/pythonPlotting.py

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 os
from PyQt4 import QtGui, QtCore
from decimal import Decimal,getcontext
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.backends.backend_qt4agg import NavigationToolbar2QT as NavigationToolbar
from matplotlib.figure import Figure
from configuration.Appconfig import Appconfig
import numpy as np

class plotWindow(QtGui.QMainWindow):
    def __init__(self,fpath,projectName):
        QtGui.QMainWindow.__init__(self)
        self.fpath = fpath
        self.projectName = projectName
        self.obj_appconfig = Appconfig()
        print "Complete Project Path : ",self.fpath
        print "Project Name : ",self.projectName
        self.obj_appconfig.print_info('Ngspice simulation is called : ' + self.fpath)
        self.obj_appconfig.print_info('PythonPlotting is called : ' + self.fpath)
        self.combo = []
        self.combo1 = []
        self.combo1_rev = []
        #Creating Frame
        self.createMainFrame()        
        
    def createMainFrame(self):
        self.mainFrame = QtGui.QWidget()
        self.dpi = 100
        self.fig = Figure((7.0, 7.0), dpi=self.dpi)
        #Creating Canvas which will figure
        self.canvas = FigureCanvas(self.fig)
        self.canvas.setParent(self.mainFrame)
        self.axes = self.fig.add_subplot(111)
        self.navToolBar = NavigationToolbar(self.canvas, self.mainFrame)
        
        #LeftVbox hold navigation tool bar and canvas
        self.left_vbox = QtGui.QVBoxLayout()
        self.left_vbox.addWidget(self.navToolBar)
        self.left_vbox.addWidget(self.canvas)

        #right VBOX is main Layout which hold right grid(bottom part) and top grid(top part)
        self.right_vbox = QtGui.QVBoxLayout()
        self.right_grid = QtGui.QGridLayout()
        self.top_grid = QtGui.QGridLayout()
        
        #Get DataExtraction Details
        self.obj_dataext = DataExtraction()
        self.plotType = self.obj_dataext.openFile(self.fpath)
        
        self.obj_dataext.computeAxes()
        self.a = self.obj_dataext.numVals()
                        
        self.chkbox=[]
        
        ########### Generating list of colors :
        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])

        ###########Color generation ends here
        
        
        #Total number of voltage source
        self.volts_length = self.a[1]
        self.analysisType = QtGui.QLabel()
        self.top_grid.addWidget(self.analysisType,0,0)
        self.listNode = QtGui.QLabel()
        self.top_grid.addWidget(self.listNode,1,0)
        self.listBranch = QtGui.QLabel()
        self.top_grid.addWidget(self.listBranch,self.a[1]+2,0)
        for i in range(0,self.a[1]):#a[0]-1
            self.chkbox.append(QtGui.QCheckBox(self.obj_dataext.NBList[i]))
            self.chkbox[i].setStyleSheet('color')
            self.chkbox[i].setToolTip('<b>Check To Plot</b>' )
            self.top_grid.addWidget(self.chkbox[i],i+2,0)
            self.colorLab = QtGui.QLabel()
            self.colorLab.setText('____')
            self.colorLab.setStyleSheet(self.colorName(self.color[i])+'; font-weight = bold;')
            self.top_grid.addWidget(self.colorLab,i+2,1)

        for i in range(self.a[1],self.a[0]-1):#a[0]-1
            self.chkbox.append(QtGui.QCheckBox(self.obj_dataext.NBList[i]))
            self.chkbox[i].setToolTip('<b>Check To Plot</b>' )
            self.top_grid.addWidget(self.chkbox[i],i+3,0)
            self.colorLab = QtGui.QLabel()
            self.colorLab.setText('____')
            self.colorLab.setStyleSheet(self.colorName(self.color[i])+'; font-weight = bold;')
            self.top_grid.addWidget(self.colorLab,i+3,1)
    
        self.clear = QtGui.QPushButton("Clear")
        self.warnning = QtGui.QLabel()
        self.funcName = QtGui.QLabel()
        self.funcExample = QtGui.QLabel()
    
        self.plotbtn = QtGui.QPushButton("Plot")
        self.plotbtn.setToolTip('<b>Press</b> to Plot' )
        self.multimeterbtn = QtGui.QPushButton("Multimeter")
        self.multimeterbtn.setToolTip('<b>RMS</b> value of the current and voltage is displayed' )
        self.text = QtGui.QLineEdit()
        self.funcLabel = QtGui.QLabel()
        self.palette1 = QtGui.QPalette()
        self.palette2 = QtGui.QPalette()
        self.plotfuncbtn = QtGui.QPushButton("Plot Function")
        self.plotfuncbtn.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.funcName.setPalette(self.palette1)
        self.funcExample.setPalette(self.palette2)

        self.right_vbox.addLayout(self.top_grid)
        self.right_vbox.addWidget(self.plotbtn)
        self.right_vbox.addWidget(self.multimeterbtn)
    
        self.right_grid.addWidget(self.funcLabel,1,0)
        self.right_grid.addWidget(self.text,1,1)
        self.right_grid.addWidget(self.plotfuncbtn,2,1)    
        self.right_grid.addWidget(self.clear,2,0)
        self.right_grid.addWidget(self.warnning,3,0)
        self.right_grid.addWidget(self.funcName,4,0)
        self.right_grid.addWidget(self.funcExample,4,1)
        self.right_vbox.addLayout(self.right_grid)
        
        self.hbox = QtGui.QHBoxLayout()
        self.hbox.addLayout(self.left_vbox)
        self.hbox.addLayout(self.right_vbox)
    
        self.widget = QtGui.QWidget()
        self.widget.setLayout(self.hbox)#finalvbox
        self.scrollArea = QtGui.QScrollArea()
        self.scrollArea.setWidgetResizable(True)
        self.scrollArea.setWidget(self.widget)

        self.finalhbox = QtGui.QHBoxLayout()
        self.finalhbox.addWidget(self.scrollArea)

        self.mainFrame.setLayout(self.finalhbox)
        self.showMaximized()
    
        self.listNode.setText("<font color='indigo'>List of Nodes:</font>")
        self.listBranch.setText("<font color='indigo'>List of Branches:</font>")    
        self.funcLabel.setText("<font color='indigo'>Function:</font>")
        self.funcName.setText("<font color='indigo'>Standard functions</font>\
                <br><br>Addition:<br>Subtraction:<br>Multiplication:<br>Division:<br>Comparison:")
        self.funcExample.setText("\n\nNode1 + Node2\nNode1 - Node2\nNode1 * Node2\nNode1 / Node2\nNode1 vs Node2")

        #Connecting to plot and clear function
        self.connect(self.clear,QtCore.SIGNAL('clicked()'),self.pushedClear)
        self.connect(self.plotfuncbtn,QtCore.SIGNAL('clicked()'), self.pushedPlotFunc)
        self.connect(self.multimeterbtn,QtCore.SIGNAL('clicked()'), self.multiMeter)
        

        if self.plotType[0]==0:
            self.analysisType.setText("<b>AC Analysis</b>")
            if self.plotType[1]==1:
                self.connect(self.plotbtn, QtCore.SIGNAL('clicked()'), self.onPush_decade)
            else:
                self.connect(self.plotbtn, QtCore.SIGNAL('clicked()'), self.onPush_ac)

        elif self.plotType[0]==1:
            self.analysisType.setText("<b>Transient Analysis</b>")
            self.connect(self.plotbtn, QtCore.SIGNAL('clicked()'), self.onPush_trans)

        else:
            self.analysisType.setText("<b>DC Analysis</b>")
            self.connect(self.plotbtn, QtCore.SIGNAL('clicked()'), self.onPush_dc)

        self.setCentralWidget(self.mainFrame)    
        
    def pushedClear(self):
        self.text.clear()
        self.axes.cla()
        self.canvas.draw()
        QtCore.SLOT('quit()')
        
    def pushedPlotFunc(self):
        self.parts = str(self.text.text())
        self.parts = self.parts.split(" ")
                
        if self.parts[len(self.parts)-1] == '':
            self.parts = self.parts[0:-1]
        
        self.values = self.parts
        self.comboAll = []
        self.axes.cla()   
        
        self.plotType2 = self.obj_dataext.openFile(self.fpath)
        
        if len(self.parts) <= 2:
            self.warnning.setText("Too few arguments!\nRefer syntax below!")
            QtGui.QMessageBox.about(self, "Warning!!", "Too Few Arguments/SYNTAX Error!\n Refer Examples")
        else:
            self.warnning.setText("")
            
        a = []  
        finalResult  = []
        p = 0
        
        for i in range(len(self.parts)):
            #print "I",i
            if i%2 == 0:
                #print "I'm in:"
                for j in range(len(self.obj_dataext.NBList)):
                    if self.parts[i]==self.obj_dataext.NBList[j]:
                        #print "I got you:",self.parts[i]
                        a.append(j)
    
        if len(a) != len(self.parts)//2 + 1:
            QtGui.QMessageBox.about(self, "Warning!!", "One of the operands doesn't belong to the above list of Nodes!!")
            
        for i in a:
            self.comboAll.append(self.obj_dataext.y[i])
            
               
        for i in range(len(a)):
            
            if a[i] == len(self.obj_dataext.NBList):
                QtGui.QMessageBox.about(self, "Warning!!", "One of the operands doesn't belong to the above list!!")
                self.warnning.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.warnning.setText("Enter two operands only!!")
                QtGui.QMessageBox.about(self, "Warning!!", "Recheck the expression syntax!")

            else:
                self.axes.cla()
            
                for i in range(len(self.obj_dataext.y[a[0]])):
                    self.combo.append(self.obj_dataext.y[a[0]][i]) 
                    self.combo1.append(self.obj_dataext.y[a[1]][i])
                
                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:
            QtGui.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[:])
                try:
                    finalResult.append(eval(re))
                except ArithmeticError:
                    QtGui.QMessageBox.about(self, "Warning!!", "Dividing by zero!!")
                    
            if self.plotType2[0]==0:
                #self.setWindowTitle('AC Analysis')
                if self.plotType2[1]==1:
                    self.axes.semilogx(self.obj_dataext.x,finalResult,c=self.color[0],label=str(1))
                else:
                    self.axes.plot(self.obj_dataext.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 self.plotType2[0]==1:
                #self.setWindowTitle('Transient Analysis')
                self.axes.plot(self.obj_dataext.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.obj_dataext.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.grid(True)
        self.canvas.draw()
        self.combo = []
        self.combo1 = []
        self.combo1_rev = []
            
            
       
    
    def onPush_decade(self):
        #print "Calling on push Decade"
        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.obj_dataext.x,self.obj_dataext.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:
            QtGui.QMessageBox.about(self, "Warning!!","Please select at least one Node OR Branch")        
        self.canvas.draw()

        
    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.obj_dataext.x,self.obj_dataext.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:
            QtGui.QMessageBox.about(self, "Warning!!","Please select at least one Node OR Branch")
        self.canvas.draw()
        
    def onPush_trans(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.obj_dataext.x,self.obj_dataext.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:
            QtGui.QMessageBox.about(self, "Warning!!","Please select at least 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.obj_dataext.x,self.obj_dataext.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:
            QtGui.QMessageBox.about(self,"Warning!!", "Please select atleast one Node OR Branch")
        self.canvas.draw() 
        
    def colorName(self,letter):
        return {
                'r':'color:red',
                'b':'color:blue',
                'g':'color:green',
                'y':'color:yellow',
                'c':'color:cyan',
                'm':'color:magenta',
                'k':'color:black'
        }[letter]
        
    def multiMeter(self):
        print "Function : MultiMeter"
        self.obj = {}
        boxCheck = 0
        loc_x = 300
        loc_y = 300
        for i,j in zip(self.chkbox,range(len(self.chkbox))):
            if i.isChecked():
                print "Check box",self.obj_dataext.NBList[j]
                boxCheck += 1
                #Initializing Multimeter
                self.obj[j] = MultimeterWidgetClass(self.obj_dataext.NBList[j],self.getRMSValue(self.obj_dataext.y[j]),loc_x,loc_y)
                loc_x += 50
                loc_y += 50
                       
        if boxCheck == 0:
            QtGui.QMessageBox.about(self, "Warning!!","Please select at least one Node OR Branch")
        
    
    def getRMSValue(self,dataPoints):
        getcontext().prec = 5
        return np.sqrt(np.mean(np.square(dataPoints)))
    
class MultimeterWidgetClass(QtGui.QWidget):
    def __init__(self,node_branch,rmsValue,loc_x,loc_y):
        QtGui.QWidget.__init__(self)
        
        self.multimeter = QtGui.QWidget(self)
        self.node_branchLabel = QtGui.QLabel("Node/Branch")
        self.rmsLabel = QtGui.QLabel("RMS Value (Volts/Amperes)")
        
        self.nodeBranchValue = QtGui.QLabel(str(node_branch))
        self.rmsValue = QtGui.QLabel(str(rmsValue))
        
        self.layout = QtGui.QGridLayout(self)
        self.layout.addWidget(self.node_branchLabel,0,0)
        self.layout.addWidget(self.rmsLabel,0,1)
        self.layout.addWidget(self.nodeBranchValue,1,0)
        self.layout.addWidget(self.rmsValue,1,1)
        
        self.multimeter.setLayout(self.layout)
        self.setGeometry(loc_x,loc_y,300,100)
        self.setWindowTitle("MultiMeter")
        self.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint)
        self.show()
        

class DataExtraction:
    def __init__(self):
        self.obj_appconfig = Appconfig()
        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
                
        
    def numberFinder(self,fpath):
        #Opening ANalysis file
        with open(os.path.join(fpath,"analysis")) as f3:
            self.analysisInfo = f3.read()
        self.analysisInfo = self.analysisInfo.split(" ")
        
              
        #Reading data file for voltage
        with open(os.path.join(fpath,"plot_data_v.txt")) as f2:
            self.voltData = f2.read()
        
        self.voltData = self.voltData.split("\n")
        
        #Initializing variable 
        #'p' gives no. of lines of data for each node/branch 
        # 'l' gives the no of partitions for a single voltage node
        #'vnumber' gives total number of voltage
        #'inumber' gives total number of current   
        
        p = l = vnumber = inumber = 0
        #print "VoltsData : ",self.voltData
        
        #Finding totla number of voltage node
        for i in self.voltData[3:]:
            #it has possible names of voltage nodes in NgSpice
            if "Index" in i:#"V(" in i or "x1" in i or "u3" in i:
                vnumber+=1    
        
        #print "Voltage Number :",vnumber
        
        #Reading Current Source Data
        with open (os.path.join(fpath,"plot_data_i.txt")) as f1:
            self.currentData = f1.read()
        self.currentData = self.currentData.split("\n")  
        
        #print "CurrentData : ",self.currentData  
    
        #Finding Number of Branch
        for i in self.currentData[3:]:
            if "#branch" in i:
                inumber+=1
                
        #print "Current Number :",inumber    
        
        self.dec = 0 
        
        #For AC
        if self.analysisInfo[0][-3:]==".ac":
            self.analysisType = 0
            if "dec" in self.analysisInfo:
                self.dec = 1
        
            for i in self.voltData[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
        
        elif ".tran" in self.analysisInfo:
            self.analysisType = 1
            for i in self.voltData[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:
            self.analysisType = 2
            for i in self.voltData[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
        


             
        #print "VoltNumber",vnumber
        #print "CurrentNumber",inumber
        vnumber = vnumber//l        #vnumber gives the no of voltage nodes
        inumber  = inumber//l        #inumber gives the no of branches
        
        #print "VoltNumber",vnumber
        #print "CurrentNumber",inumber
        
        p=[p,vnumber,self.analysisType,self.dec,inumber]
        
        return p
    
    def openFile(self,fpath):
        try:
            with open (os.path.join(fpath,"plot_data_i.txt")) as f2:
                alli = f2.read()
                
            alli = alli.split("\n")
            self.NBIList = []

            with open (os.path.join(fpath,"plot_data_v.txt")) as f1:
                allv = f1.read()

        except Exception as e:
            print "Exception Message : ",str(e)
            self.obj_appconfig.print_error('Exception Message :' + str(e))
            self.msg = QtGui.QErrorMessage(None)
            self.msg.showMessage('Unable to open plot data files.')
            self.msg.setWindowTitle("Error Message:openFile")
            
        try:
            for l in alli[3].split(" "):
                if len(l)>0:
                    self.NBIList.append(l)
            self.NBIList = self.NBIList[2:]
            len_NBIList = len(self.NBIList)
            #print "NBILIST : ",self.NBIList
        except Exception as e:
            print "Exception Message : ",str(e)
            self.obj_appconfig.print_error('Exception Message :' + str(e))
            self.msg = QtGui.QErrorMessage(None)
            self.msg.showMessage('Error in Analysis File.')
            self.msg.setWindowTitle("Error Message:openFile")
            
            
        d = self.numberFinder(fpath)
        d1 = int(d[0] + 1)
        d2 = int(d[1])
        d3 = d[2]
        d4 = d[4]
        
        dec = [d3,d[3]]
        #print "No. of Nodes:", d2
        self.NBList = []
        allv=allv.split("\n")
        for l in allv[3].split(" "):
            if len(l)>0:
                self.NBList.append(l)
        self.NBList=self.NBList[2:]
        len_NBList = len(self.NBList)
        print "NBLIST",self.NBList
        
        ivals=[]
        inum = len(allv[5].split("\t"))
        inum_i = len(alli[5].split("\t"))
        
        
        
        full_data = []
        
        # Creating list of data:
        if d3 < 3 :
            for i in range(1,d2):
                for l in allv[3+i*d1].split(" "):
                    if len(l)>0:
                        self.NBList.append(l)
                self.NBList.pop(len_NBList)
                self.NBList.pop(len_NBList)
                len_NBList = len(self.NBList)
            
            for n in range(1,d4):
                for l in alli[3+n*d1].split(" "):
                    if len(l)>0:
                        self.NBIList.append(l)
                self.NBIList.pop(len_NBIList)
                self.NBIList.pop(len_NBIList)
                len_NBIList = len(self.NBIList)
            
            p=0
            k = 0
            m=0
            
            for i in alli[5:d1-1]:
                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 = alli[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 :",full_data

            
            for i in allv[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 = allv[5+l*d1+p].split("\t")
                        j1.pop(0)
                        j1.pop(0)
                        if d3==0:
                            j1.pop()     #not required for dc
                        if self.NBList[len(self.NBList)-1] == 'v-sweep':         
                            self.NBList.pop()
                            j1.pop()
            
                        j1.pop()
                        j = j + j1 
                    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 "volts:",self.butnames
        self.volts_length = len(self.NBList)
        self.NBList = self.NBList + self.NBIList
         
    
        print dec    
        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])])
        for i in self.data[1:]:
            temp=i.split("\t")
            for j in range(1,nums):
                self.y[j-1].append(Decimal(temp[j]))
        for i in self.data:
            temp=i.split("\t")
            self.x.append(Decimal(temp[0]))