I need to start my own project. I want to implement my own interactor, and my code is:
import vtk, sys
from vtk.qt.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
from PyQt5.QtWidgets import *
class myInteractorStyle(vtk.vtkInteractorStyleTrackballCamera):
def __init__(self): super(myInteractorStyle, self).__init__() def OnLeftButtonDown(self): super(myInteractorStyle, self).OnLeftButtonDown() print('left button down')class MainWindow(QMainWindow):
def __init__(self, parent=None): super(MainWindow, self).__init__(parent=parent) self.frame = QFrame() self.vl = QVBoxLayout() self.vtkWidget = QVTKRenderWindowInteractor(self.frame) self.vl.addWidget(self.vtkWidget) self.ren = vtk.vtkRenderer() self.vtkWidget.GetRenderWindow().AddRenderer(self.ren) self.iren = self.vtkWidget.GetRenderWindow().GetInteractor() # style = vtk.vtkInteractorStyleTrackballCamera() style = myInteractorStyle() self.iren.SetInteractorStyle(style) # Create source source = vtk.vtkSphereSource() source.SetCenter(0, 0, 0) source.SetRadius(5.0) # Create a mapper mapper = vtk.vtkPolyDataMapper() mapper.SetInputConnection(source.GetOutputPort()) mapper.ScalarVisibilityOff() # Create an actor actor = vtk.vtkActor() actor.SetMapper(mapper) actor.GetProperty().SetColor(1, 1, 1) actor.GetProperty().ShadingOff() self.ren.AddActor(actor) self.ren.ResetCamera() self.frame.setLayout(self.vl) self.setCentralWidget(self.frame) self.show() self.iren.Initialize()if name == “main”:
app = QApplication(sys.argv)window = MainWindow() sys.exit(app.exec_())
I hope this code would print “left button down” when the left button clicked, but it don’t.
What’s wrong with my project? Any suggestion is appraciated.