I have an annoying issue that I have not been able to solve for the past 
few months. Basically, I'm using jupyter/ipython notebook as an API to call 
pyqt and display 3d geometric data. This is how I initialize the app into 
an object and after I add some polygons and points, I call show():

class Figure(object):
    Main API functions

    def __init__(self):
        print "... initializing canvas ..."
        self.app = QApplication(sys.argv)

    def show(self):   #Show
        self.GUI = GLWindow(data)   

The problem is that once I call the show command in the jupyter notebook I 
can't do live updates to the widget as the notebook input is locked out:

#Initialize figure object inside the notebook
fig = plb.figure()
fig.show()  #Locks out any further jupyter commands while widget on screen
fig.update() #Does not get executed until widget is closed

I already have the mouse events working fine (i.e. I can rotate and click 
on the widget window displaying 3D info) using intrinsic functions like 
mouseMoveEvent() that are inside the widget code:

    class GLWindow(QtGui.QWidget):

        def __init__(self, fig, parent=None):
            QtGui.QWidget.__init__(self, parent)

            self.glWidget = GLWidget(fig, parent=self)

    class GLWidget(QtOpenGL.QGLWidget):

            def __init__(self, fig, parent=None):
                QtOpenGL.QGLWidget.__init__(self, parent)

            def mouseMoveEvent(self, event):
                buttons = event.buttons()
                modifiers = event.modifiers()
                dx = event.x() - self.lastPos.x()
                dy = event.y() - self.lastPos.y()

But I can't figure out how to use events to call the widget app from 
outside the widget code so the notebook can interact with the app. I've 
tried to follow a couple of related suggestions, but it is not clear to me 
how to do this.

Any help is appreciated, I've spent so many hours on trying to fix this 
it's embarrassing. 


You received this message because you are subscribed to the Google Groups 
"Project Jupyter" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to jupyter+unsubscr...@googlegroups.com.
To post to this group, send email to jupyter@googlegroups.com.
To view this discussion on the web visit 
For more options, visit https://groups.google.com/d/optout.

Reply via email to