def _updateStack(self):
"""Update displayed stack according to the current axes selector
data."""
stk = self._selector.selectedData()
x_axis = self.__x_axis
y_axis = self.__y_axis
z_axis = self.__z_axis
calibrations = []
for axis in [z_axis, y_axis, x_axis]:
if axis is None:
calibrations.append(NoCalibration())
elif len(axis) == 2:
calibrations.append(
LinearCalibration(y_intercept=axis[0], slope=axis[1]))
else:
calibrations.append(ArrayCalibration(axis))
legend = self.__signal_name + "["
for sl in self._selector.selection():
if sl == slice(None):
legend += ":, "
else:
legend += str(sl) + ", "
legend = legend[:-2] + "]"
self._legend.setText("Displayed data: " + legend)
self._stack_view.setStack(stk, calibrations=calibrations)
self._stack_view.setLabels(labels=[
self.__z_axis_name, self.__y_axis_name, self.__x_axis_name
])
class TestLinearCalibration(unittest.TestCase):
def setUp(self):
self.y_intercept = 1.5
self.slope = 2.5
self.calib = LinearCalibration(y_intercept=self.y_intercept,
slope=self.slope)
def testIsAffine(self):
self.assertTrue(self.calib.is_affine())
def testSlope(self):
self.assertEqual(self.calib.get_slope(), self.slope)
def testYIntercept(self):
self.assertEqual(self.calib(0.),
self.y_intercept)
def testCall(self):
self.assertTrue(numpy.array_equal(self.calib(X),
self.y_intercept + self.slope * X))
class TestLinearCalibration(unittest.TestCase):
def setUp(self):
self.y_intercept = 1.5
self.slope = 2.5
self.calib = LinearCalibration(y_intercept=self.y_intercept,
slope=self.slope)
def testIsAffine(self):
self.assertTrue(self.calib.is_affine())
def testSlope(self):
self.assertEqual(self.calib.get_slope(), self.slope)
def testYIntercept(self):
self.assertEqual(self.calib(0.),
self.y_intercept)
def testCall(self):
self.assertTrue(numpy.array_equal(self.calib(X),
self.y_intercept + self.slope * X))
def _updateVolume(self):
"""Update displayed stack according to the current axes selector
data."""
x_axis = self.__x_axis
y_axis = self.__y_axis
z_axis = self.__z_axis
offset = []
scale = []
for axis in [x_axis, y_axis, z_axis]:
if axis is None:
calibration = NoCalibration()
elif len(axis) == 2:
calibration = LinearCalibration(y_intercept=axis[0],
slope=axis[1])
else:
calibration = ArrayCalibration(axis)
if not calibration.is_affine():
_logger.warning("Axis has not linear values, ignored")
offset.append(0.)
scale.append(1.)
else:
offset.append(calibration(0))
scale.append(calibration.get_slope())
legend = self.__signal_name + "["
for sl in self._selector.selection():
if sl == slice(None):
legend += ":, "
else:
legend += str(sl) + ", "
legend = legend[:-2] + "]"
self._legend.setText("Displayed data: " + legend)
# Update SceneWidget
data = self._selector.selectedData()
volumeView = self.getVolumeView()
volumeView.setData(data, offset=offset, scale=scale)
volumeView.setAxesLabels(self.__x_axis_name, self.__y_axis_name,
self.__z_axis_name)
def setUp(self):
self.y_intercept = 1.5
self.slope = 2.5
self.calib = LinearCalibration(y_intercept=self.y_intercept,
slope=self.slope)
def setUp(self):
self.y_intercept = 1.5
self.slope = 2.5
self.calib = LinearCalibration(y_intercept=self.y_intercept,
slope=self.slope)
