jendela tidak muncul dengan benar qtpython

Saya mencoba membuka jendela sederhana ketika mengklik tombol. jendela sederhana yang saya salin ini berasal dari: MultipleplotAxis.py

Kode saya adalah:

from PyQt5 import QtCore, QtGui, QtWidgets
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(264, 248)
        MainWindow.setMinimumSize(QtCore.QSize(264, 248))
        MainWindow.setMaximumSize(QtCore.QSize(264, 248))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName("gridLayout")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.gridLayout.addWidget(self.pushButton, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 264, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.pushButton.clicked['bool'].connect(self.lanzar_grafica_3_ejes)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))    
        self.pushButton.setText(_translate("MainWindow", "PushButton"))


   def lanzar_grafica_3_ejes(self):

        self.lanzar_a_canasta = lanzar()
        self.lanzar_a_canasta.setupUi(self)


class lanzar(object):

    ###########
    # COPY FROM PYQTGRAPH.ORG
    ###########

    def __init__(self):
        print('__init__ lanzar class')

    def setupUi(self, MainWindow):

        import time 

        pg.mkQApp()

        pw = pg.PlotWidget()
        pw.show()
        time.sleep(5)
        pw.setWindowTitle('pyqtgraph example: MultiplePlotAxes') 
        p1 = pw.plotItem
        p1.setLabels(left='axis 1')

        ## create a new ViewBox, link the right axis to its coordinate system
        p2 = pg.ViewBox()
        p1.showAxis('right')
        p1.scene().addItem(p2)
        p1.getAxis('right').linkToView(p2)
        p2.setXLink(p1)
        p1.getAxis('right').setLabel('axis2', color='#0000ff')

        ## create third ViewBox. 
        ## this time we need to create a new axis as well.
        p3 = pg.ViewBox()
        ax3 = pg.AxisItem('right')
        p1.layout.addItem(ax3, 2, 3)
        p1.scene().addItem(p3)
        ax3.linkToView(p3)
        p3.setXLink(p1)
        ax3.setZValue(-10000)
        ax3.setLabel('axis 3', color='#ff0000') 


        ## Handle view resizing 
        def updateViews():
            ## view has resized; update auxiliary views to match
            global p1, p2, p3
            p2.setGeometry(p1.vb.sceneBoundingRect())
            p3.setGeometry(p1.vb.sceneBoundingRect())

            ## need to re-update linked axes since this was called
            ## incorrectly while views had different shapes.
            ## (probably this should be handled in ViewBox.resizeEvent)
            p2.linkedViewChanged(p1.vb, p2.XAxis)
            p3.linkedViewChanged(p1.vb, p3.XAxis)

        updateViews()
        p1.vb.sigResized.connect(updateViews)
        p1.plot([10,20,40,80,40,20],[1,2,4,8,16,32])
        p2.addItem(pg.PlotCurveItem([10,20,40,80,40,20],[12,13,14,15,16,17], pen='b'))
        p3.addItem(pg.PlotCurveItem([10,20,40,80,40,20],[32,16,8,4,2,1], pen='r'))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Saat saya pencet tombolnya, jendela yang ingin saya tampilkan tidak muncul sepenuhnya, maksud saya:

Ini adalah jendela yang ingin saya tampilkan: gambar bagus, namun ketika saya klik tombolnya, hanya muncul bingkai tanpa apa pun di dalamnya. Saya juga punya kode pengatur waktu karena jika tidak, jendelanya akan langsung hilang.

Saya kira saya menelepon kelas dengan cara yang salah.

ada bantuan?


pyqt5 pyqtgraph
person donostialdea    schedule 01.03.2019    source sumber
comment
Anda hanya perlu mengganti pw dengan self.pw di setupUi dan menambahkan baris global p1, p2, p3 di awal fungsi tersebut. (maka Anda juga dapat menghapus time.sleep(5))   -  person Jonas    schedule 03.03.2019

Jawaban (1)


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Cobalah:

from PyQt5 import QtCore, QtGui, QtWidgets
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
#import time 


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(264, 248)
        MainWindow.setMinimumSize(QtCore.QSize(264, 248))
#        MainWindow.setMaximumSize(QtCore.QSize(264, 248))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName("gridLayout")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.gridLayout.addWidget(self.pushButton, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 264, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
#        self.pushButton.clicked['bool'].connect(self.lanzar_grafica_3_ejes)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))    
        self.pushButton.setText(_translate("MainWindow", "PushButton"))

#    def lanzar_grafica_3_ejes(self):   ##(MainWindow): #
#        self.lanzar_a_canasta = Lanzar()
#        self.lanzar_a_canasta.setupUi() #(self)


class Lanzar(QtWidgets.QWidget):    #(object):

    ###########
    # COPY FROM PYQTGRAPH.ORG
    ###########

    def __init__(self):
        super().__init__()
        print('__init__ Lanzar class')


    def setupUi(self, MainWindow):

        pg.mkQApp()

        self.pw = pg.PlotWidget()
#        self.pw.show()
#        time.sleep(5)
        self.pw.setWindowTitle('pyqtgraph example: MultiplePlotAxes') 
        self.p1 = self.pw.plotItem
        self.p1.setLabels(left='axis 1')

        ## create a new ViewBox, link the right axis to its coordinate system
        self.p2 = pg.ViewBox()
        self.p1.showAxis('right')
        self.p1.scene().addItem(self.p2)
        self.p1.getAxis('right').linkToView(self.p2)
        self.p2.setXLink(self.p1)
        self.p1.getAxis('right').setLabel('axis2', color='#0000ff')

        ## create third ViewBox. 
        ## this time we need to create a new axis as well.
        self.p3 = pg.ViewBox()
        ax3 = pg.AxisItem('right')
        self.p1.layout.addItem(ax3, 2, 3)
        self.p1.scene().addItem(self.p3)
        ax3.linkToView(self.p3)
        self.p3.setXLink(self.p1)
        ax3.setZValue(-10000)
        ax3.setLabel('axis 3', color='#ff0000') 


        ## Handle view resizing 
        def updateViews():
            ## view has resized; update auxiliary views to match
#            global p1, p2, p3
            self.p2.setGeometry(self.p1.vb.sceneBoundingRect())
            self.p3.setGeometry(self.p1.vb.sceneBoundingRect())

            ## need to re-update linked axes since this was called
            ## incorrectly while views had different shapes.
            ## (probably this should be handled in ViewBox.resizeEvent)
            self.p2.linkedViewChanged(self.p1.vb, self.p2.XAxis)
            self.p3.linkedViewChanged(self.p1.vb, self.p3.XAxis)

        updateViews()
        self.p1.vb.sigResized.connect(updateViews)
        self.p1.plot([10,20,40,80,40,20],[1,2,4,8,16,32])
        self.p2.addItem(pg.PlotCurveItem([10,20,40,80,40,20],[12,13,14,15,16,17], pen='b'))
        self.p3.addItem(pg.PlotCurveItem([10,20,40,80,40,20],[32,16,8,4,2,1], pen='r'))


class Window(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):                                         
        super().__init__()

        self.setupUi(self)

        self.pushButton.clicked.connect(self.lanzar_grafica_3_ejes)


    def lanzar_grafica_3_ejes(self):    
        self.lanzar_a_canasta = Lanzar()
        self.lanzar_a_canasta.setupUi(self.lanzar_a_canasta)    

        self.gridLayout.addWidget(self.lanzar_a_canasta.pw, 1, 0, 1, 5)


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = Window()
    w.show()
    w.resize(630, 550)
    sys.exit(app.exec_())

masukkan deskripsi gambar di sini

person S. Nick    schedule 01.03.2019