fft_spectrum_gui_3can_py3_01.py 文件源码

def open_file(self):
        """Opens dialog to select a file, reads data from file and plots the data"""
        ftypes = [('Text files', '*.txt'), ('All files', '*')]
        dlg = filedialog.Open(root, filetypes = ftypes)
        fl = dlg.show()
        if fl != '':
            # Open file for reading
            arch = open(fl, "r")
            datos_arch = arch.read()
            # Searches for every channel, delimited by L1, L2 and L3 tags.
            canal_1 = extraer_int_tag(datos_arch, 'L1')
            canal_2 = extraer_int_tag(datos_arch, 'L2')
            canal_3 = extraer_int_tag(datos_arch, 'L3')

            print("Amount of samples in channel 1: %s" %len(canal_1))
            print("Amount of samples on channel 2: %s" %len(canal_2))
            print("Amount of samples on channel 3: %s" %len(canal_3))
            message_string = "Amount of samples channel 1: {0} \n".format(len(canal_1))
            message_string += "Amount of samples channel 2: {0} \n".format(len(canal_2))
            message_string += "Amount of samples channel 3: {0} \n".format(len(canal_3))
            self.show_message(self.text_message, message_string)

            global g_canal_1, g_canal_2, g_canal_3
            #Keep a copy of the original values
            g_canal_1 = canal_1[:]            #Copy list by value not by reference
            g_canal_2 = canal_2[:]
            g_canal_3 = canal_3[:]

            self.window_var.set(1)        #Option rectangular window
            self.plot(self.tab1, self.tab2, canal_1, canal_2, canal_3, win_var=1)