def getActiveRenderer(self, iren):
        epos = list(iren.GetEventPosition())
        if epos[1]<0:
            epos[1] = -epos[1]
        rens = iren.GetRenderWindow().GetRenderers()
        rens.InitTraversal()
        for i in xrange(rens.GetNumberOfItems()):
            ren = rens.GetNextItem()
            if ren.IsInViewport(epos[0], epos[1]):
                return ren
        return None
Return all documents in the collection
dataset/ETHPy150Open VisTrails/VisTrails/contrib/titan/vtkviewcell.py/QVTKViewWidget.getActiveRenderer--crossover with--dataset/ETHPy150Open zbyte64/django-dockit/dockit/schema/manager.py/Manager.all