[Matplotlib-users] Plot problem with pyqtmatplotlib

[Luca Bertolotti]

Hello i have done this and works:

def prova(self):
        lista_r = []
        lista_y = []
        for a in range(40):
            val = self.tableWidget.item(a, 0)
            va = QTableWidgetItem(val)
            valdamettere = va.text()
            if valdamettere != '':
                lista_r.append(valdamettere)
        print(lista_r)
        lista_y = []
        for a in range(40):
            val = self.tableWidget.item(a, 1)
            va = QTableWidgetItem(val)
            valdamettere = va.text()
            if valdamettere != '':
                lista_y.append(valdamettere)
        figure = Figure(figsize=(9.18, 6.25), dpi=55)
        axes = figure.gca()
        axes.set_title("Andamento Profilato")
        lista_r_mp = []
        lista_y_mp = []
        for a in range(len(lista_r)-1):
            print(float(lista_r[a]), float(lista_r[a+1]))
            test_r = np.linspace(float(lista_r[a]), float(lista_r[a+1]))
            lista_r_mp.append(test_r)
        for b in range(len(lista_y)-1):
            test_y = np.linspace(float(lista_y[b]), float(lista_y[b+1]))
            lista_y_mp.append(test_y)
        for c in range(len(lista_y_mp)):
            axes.plot(lista_r_mp[c], lista_y_mp[c])
        axes.grid(True)
        axes.set_xlabel('Raggio')
        axes.set_ylabel('Y')
        canvas = FigureCanvas(figure)
        self.navi_toolbar = NavigationToolbar(canvas, self)
        self.vbl_one =  QVBoxLayout(self.widget_3)
        self.vbl_one.addWidget(canvas)
        self.vbl_one.addWidget(self.navi_toolbar)

All this works

now i need to add to the same figure an old script

def test(self):
        import numpy as np
        import warnings
        import matplotlib.pyplot as plt
        x = np.array([10, 20, 30, 40, ])
        y = np.array([50, 60, 70, 80])#raggio
        print(x, y)
        p= np.poly1d(355)
        with warnings.catch_warnings():
            warnings.simplefilter('ignore', np.RankWarning)
        p30 = np.poly1d(np.polyfit(x, y, 50))
        valore_y_da_mettere = p30(355)
        print('p30 di 500/n')
        print(valore_y_da_mettere)
        self.lineEdit_2.setText(str(valore_y_da_mettere))
        xp = np.linspace(0, 100, 100000)
        _ = plt.plot(x, y, '.', xp,  p30(xp), '-')
        plt.ylim(50,80)#limiti asse y
        plt.xlim(10, 40)# limiti asse x
        plt.show()

How i can add the test plot on the same figure of the function prova??
basically how i can change the plt in the figure.gca()
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