关于pyQT5 + VTK7 的一个实现案例

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官方提供的两个案例使用的是pyQT4，以下是更新的pyQT5。另请参看官方的两个案例：

1、 http://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt

2、 http://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt2

from PyQt5 import QtWidgetsfrom PyQt5.QtWidgets import QApplicationfrom vtk.qt.QVTKRenderWindowInteractor import QVTKRenderWindowInteractorimport sysimport vtkclass Ui_MainWindow(object):    def setupUi(self, MainWindow):        MainWindow.setObjectName("MainWindow")        MainWindow.resize(603, 553)        self.centralWidget = QtWidgets.QWidget(MainWindow)        self.gridlayout = QtWidgets.QGridLayout(self.centralWidget)        self.vtkWidget = QVTKRenderWindowInteractor(self.centralWidget)        self.gridlayout.addWidget(self.vtkWidget, 0, 0, 100, 100)        self.buttonLeft = QtWidgets.QPushButton("Left")        self.gridlayout.addWidget(self.buttonLeft, 96, 48, 1, 1)        self.buttonRight = QtWidgets.QPushButton("Right")        self.gridlayout.addWidget(self.buttonRight, 96, 52, 1, 1)        self.buttonUp = QtWidgets.QPushButton("Up")        self.gridlayout.addWidget(self.buttonUp, 94, 50, 1, 1)        self.buttonDown = QtWidgets.QPushButton("Down")        self.gridlayout.addWidget(self.buttonDown, 98, 50, 1, 1)        self.buttonFire = QtWidgets.QPushButton("Fire Torpedo")        self.gridlayout.addWidget(self.buttonFire, 95, 50, 3, 1)        MainWindow.setCentralWidget(self.centralWidget)class SimpleView(QtWidgets.QMainWindow):    def __init__(self, parent=None):        QtWidgets.QMainWindow.__init__(self, parent)        self.ui = Ui_MainWindow()        self.ui.setupUi(self)        self.ren = vtk.vtkRenderer()        self.ui.vtkWidget.GetRenderWindow().AddRenderer(self.ren)        self.iren = self.ui.vtkWidget.GetRenderWindow().GetInteractor()        # Create source        source = vtk.vtkSphereSource()        source.SetCenter(0, 0, 0)        source.SetRadius(5.0)        # Create a mapper        mapper = vtk.vtkPolyDataMapper()        mapper.SetInputConnection(source.GetOutputPort())        # Create an actor        actor = vtk.vtkActor()        actor.SetMapper(mapper)        self.ren.AddActor(actor)if __name__ == "__main__":    app = QApplication(sys.argv)    window = SimpleView()    window.show()    window.iren.Initialize()  # Need this line to actually show the render inside Qt    sys.exit(app.exec_())

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