def computeScale(self):
        self.currentScale = (math.log(self.matrix().m11(), 2.0)*
                             self.scaleRatio + self.scaleMax/2 +
                             self.scaleOffset)
Tests that subsequent saves after initial model creation work
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/graphics_view.py/QInteractiveGraphicsView.computeScale--crossover with--dataset/ETHPy150Open StartTheShift/thunderdome/thunderdome/tests/model/test_edge_io.py/TestEdgeIO.test_model_updating_works_properly