test_owspectra.py 文件源码

def test_PlotCurvesItem_bounds(self):
        pc = PlotCurvesItem()
        # test defaults
        np.testing.assert_equal(pc.boundingRect(), QRectF(0, 0, 1, 1))
        pc.add_curve(pg.PlotCurveItem(x=[0, 1], y=[NAN, NAN]))
        np.testing.assert_equal(pc.boundingRect(), QRectF(0, 0, 1, 1))
        pc.add_curve(pg.PlotCurveItem(x=[-1, 2], y=[NAN, NAN]))
        np.testing.assert_equal(pc.boundingRect(), QRectF(-1, 0, 3, 1))
        # valid y values should overwrite the defaults
        pc.add_curve(pg.PlotCurveItem(x=[-1, 2], y=[0.1, 0.2]))
        np.testing.assert_equal(pc.boundingRect(), QRectF(-1, 0.1, 3, 0.1))