def resizeGL(self, width, height):
QGLWidget.resize(self, width, height)
glViewport(0, 0, self.width(), self.height())
# glViewport(0, 0, width, height)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
gluPerspective(70, 1.0 * self.width() / self.height(), 0.1, 1000.0)
gluLookAt(100, 100, 100,
0, 0, 0,
0, 1, 0)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
