tip_tilt_2_axes_test.py 文件源码

def testStartStopModulation(self):
        radiusInMilliRad= 12.4
        frequencyInHz= 100.
        centerInMilliRad= [-10, 15]
        self._tt.setTargetPosition(centerInMilliRad)
        self._tt.startModulation(radiusInMilliRad,
                                 frequencyInHz,
                                 centerInMilliRad)
        self.assertTrue(
            np.allclose(
                [1, 1, 0],
                self._ctrl.getWaveGeneratorStartStopMode()))
        waveform= self._ctrl.getWaveform(1)
        wants= self._tt._milliRadToGcsUnitsOneAxis(-10, self._tt.AXIS_A)
        got= np.mean(waveform)
        self.assertAlmostEqual(
            wants, got, msg="wants %g, got %g" % (wants, got))
        wants= self._tt._milliRadToGcsUnitsOneAxis(-10 + 12.4, self._tt.AXIS_A)
        got= np.max(waveform)
        self.assertAlmostEqual(
            wants, got, msg="wants %g, got %g" % (wants, got))

        self._tt.stopModulation()
        self.assertTrue(
            np.allclose(centerInMilliRad, self._tt.getTargetPosition()))