valtitu.py 2.0 (Programa de valoración y titulacion de Soluciones )

Hace unos días atrás publicamos la  primera versión de programa de valoración de soluciones continuación les dejo la segunda versión, en esta hacemos uso de la librería tkinter.

 el código fuente es el siguiente:

##Programa de valoracion de Soluciones vercion 2
#### usando la ecuancion C1V1 = C2V2 
##### es necesario tener python 3.3 y la libreria tkinter
###### hecho por israel Nuñez 
####### Universidad Autonoma Metropolitana 
### isrant.blogspot.com
##### mexico D.F   


from tkinter import*
from tkinter import messagebox
import math

def variables(e):
    global cas
    var = lb.curselection()
    var1 = tuple(('0',))
    var2 = tuple(('1',))
    var3 = tuple (('2'))
    var4 = tuple (('3'))
    if var == var1:
        ##calculando C1
        cas = 1
        texto=Label(ventana,text='V2')
        texto.place(bordermode = OUTSIDE, height=20, width =100, x = 300, y = 60)
        texto = Label(ventana, text = "V1")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 100)
        texto = Label(ventana, text = "C2")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 140)
        textores2 = Label(ventana, text = "C1")
        textores2.place(bordermode = OUTSIDE, height = 20, width = 150, x = 50, y = 250)
    elif var == var2:
        ##calculando C2
        cas = 2
        texto=Label(ventana,text='V2')
        texto.place(bordermode = OUTSIDE, height=20, width =100, x = 300, y = 60)
        texto = Label(ventana, text = "V1")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 100)
        texto = Label(ventana, text = "C1")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 140)
        textores2 = Label(ventana, text = "C2")
        textores2.place(bordermode = OUTSIDE, height = 20, width = 150, x = 50, y = 250)
    elif var == var3:
        cas = 3
        ##calculando V1
        texto=Label(ventana,text='V2')
        texto.place(bordermode = OUTSIDE, height=20, width =100, x = 300, y = 60)
        texto = Label(ventana, text = "C1")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 100)
        texto = Label(ventana, text = "C2")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 140)
        textores2 = Label(ventana, text = "V1")
        textores2.place(bordermode = OUTSIDE, height = 20, width = 150, x = 50, y = 250)
    elif var ==var4:
        cas = 4
        ##calculando V2
        texto=Label(ventana,text='V1')
        texto.place(bordermode = OUTSIDE, height=20, width =100, x = 300, y = 60)
        texto = Label(ventana, text = "C1")
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 100)
        texto=Label(ventana,text='C2')
        texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 140)
        textores2 = Label(ventana, text = "v2")
        textores2.place(bordermode = OUTSIDE, height = 20, width = 150, x = 50, y = 250)
    else:
        messagebox.showerror('Error','Fuera de Rango')

##operacion del boton calcular
def calcular():
    global cas
    variable1 = vari1.get()
    variable2 = vari2.get()
    variable3 = vari3.get()
    if cas == 1:
        v2=float(variable1)
        v1= float(variable2)
        c2= float(variable3)
        ##operacion
        resultado  = (c2*v2)/v1
        rest.set(resultado)
    elif cas == 2:
        v2=float(variable1)
        v1 = float(variable2)
        c1 = float(variable3)
        resultado  = (c1*v1)/v2
        rest.set(resultado)
    elif cas == 3:
        v2=float(variable1)
        c1 = float(variable2)
        c2 = float(variable3)
        resultado  =(c2*v2)/c1
        rest.set(resultado)

    elif cas == 4:
        v1 = float(variable1)
        c1 = float(variable2)
        c2 = float(variable3)
        resultado = (c1 *v1)/c2
        rest.set(resultado)
        
        
    else:
        messagebox.showerror('Error','Selecciona una Variable')

def acerca():
    messagebox.showinfo('acerca de','Desarrollado por Israel Nuñez')
    
        
ventana = Frame (height = 300, width = 600)
ventana.pack(padx =10, pady = 10)

variable1 = DoubleVar()
variable2 = DoubleVar()
variable3 = DoubleVar()

cas = 0
rest = StringVar()
#probando listbox
textolb = Label(ventana, text = "Seleccione Variable")
textolb.place(bordermode = OUTSIDE, height = 20, width = 150, x= 100, y= 20)
lb = Listbox(ventana)
lb.insert(1,"C1")
lb.insert(2,"C2")
lb.insert(3,"V1")
lb.insert(3,"V2")
lb.bind('<>',variables)
lb.place(bordermode = OUTSIDE, height = 100, width = 150, x = 100, y= 40)
#boton calcular
boton = Button(ventana, text = "calcular",command= calcular )
boton.place(bordermode = OUTSIDE, height = 30, width =80, x=350, y = 200)
#boton acercade
boton2 = Button(ventana, text ="acerca de...", command = acerca)
boton2.place (bordermode = OUTSIDE , height = 30, width = 80, x= 450, y= 200)
#texto de presentacion
texto=Label(ventana,text='Variable 1')
texto.place(bordermode = OUTSIDE, height=20, width =100, x = 300, y = 60)
texto = Label(ventana, text = "Variable 2")
texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 100)
texto = Label(ventana, text = "Variable 3")
texto.place(bordermode = OUTSIDE, height = 20, width = 100, x= 300, y= 140)
#Entrada de Datos
vari1 = Entry(ventana, textvariable =variable1)
vari1.place(bordermode= OUTSIDE, height= 30, width = 100, x= 400, y= 100)
vari2 = Entry(ventana,textvariable=variable2)
vari2.place(bordermode= OUTSIDE, height= 30, width = 100, x= 400, y= 140)
vari3 = Entry(ventana, textvariable = variable3)
vari3.place(bordermode = OUTSIDE, height = 30, width = 100, x= 400, y= 60)
#para mostrar resultados
textores = Label(ventana, text = "Resultado")
textores.place(bordermode = OUTSIDE, height = 20, width = 150, x= 100, y= 200)
textores2 = Label(ventana, text = "Variable")
textores2.place(bordermode = OUTSIDE, height = 20, width = 150, x = 50, y = 250)
res = Label(ventana,textvariable = rest, fg = "blue",bg = "yellow")
res.place(bordermode = OUTSIDE, height = 20, width = 200, x = 200, y = 250)