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VTK HEAD OpenGL errors
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#!/usr/bin/env python | |
import sys | |
import vtk | |
from PyQt4 import QtCore, QtGui | |
from vtk.qt4.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor | |
class MainWindow(QtGui.QMainWindow): | |
def __init__(self, parent = None): | |
QtGui.QMainWindow.__init__(self, parent) | |
self.frame = QtGui.QFrame() | |
self.vl = QtGui.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() | |
# 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 | |
self.actor = vtk.vtkActor() | |
self.actor.SetMapper(mapper) | |
# Update opacity | |
self.update_opacity() | |
self.ren.AddActor(self.actor) | |
self.ren.ResetCamera() | |
self.frame.setLayout(self.vl) | |
self.setCentralWidget(self.frame) | |
def update_opacity(self): | |
# Do some stuff, like changing opacity | |
self.actor.GetProperty().SetOpacity(0.5) | |
# Gives errors with VTK HEAD, but works : | |
self.vtkWidget.GetRenderWindow().Render() | |
if __name__ == "__main__": | |
app = QtGui.QApplication(sys.argv) | |
window = MainWindow() | |
window.show() | |
# Put the initialize after show(), else it will segfault on Fedora | |
window.iren.Start() | |
window.iren.Initialize() | |
sys.exit(app.exec_()) |
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