vispy_mdi_lag.py

import numpy as np

from PyQt4 import QtGui
qtapp = QtGui.QApplication([''])

from vispy import app, scene, io
app.use_app()

from vispy.app.qt import QtSceneCanvas

vol = np.load(io.load_data_file('volume/stent.npz'))['arr_0']

canvas = QtSceneCanvas(keys='interactive', size=(800, 600),
                       show=True)

view = canvas.central_widget.add_view()

volume = scene.visuals.Volume(vol, parent=view.scene)
volume.transform = scene.STTransform(translate=(64, 64, 0))

view.camera = scene.cameras.TurntableCamera(parent=view.scene)

# Create main window
widget = QtGui.QMainWindow()

# Create MDI area
mdi = QtGui.QMdiArea()
widget.setCentralWidget(mdi)

# Create sub-window in MDI area with VisPy viewer
sub = QtGui.QMdiSubWindow()
sub.setWidget(canvas)
mdi.addSubWindow(sub)

widget.show()

qtapp.exec_()