def quadrant(
cls,
array_electrons,
roe_corner,
use_flipud,
header=None,
bias_subtract_via_prescan=False,
bias=None,
):
"""
Use an input array of the left quadrant in electrons and perform the rotations required to give correct
arctic clocking.
See the docstring of the `FrameACS` class for a complete description of the Euclid FPA, quadrants and
rotations.
"""
array_electrons = layout_util.rotate_array_from_roe_corner(
array=array_electrons, roe_corner=roe_corner)
if use_flipud:
array_electrons = np.flipud(array_electrons)
if bias_subtract_via_prescan:
bias_serial_prescan_value = prescan_fitted_bias_column(
array_electrons[:, 18:24])
array_electrons -= bias_serial_prescan_value
header.bias_serial_prescan_column = bias_serial_prescan_value
if bias is not None:
bias = layout_util.rotate_array_from_roe_corner(
array=bias, roe_corner=roe_corner)
if use_flipud:
bias = np.flipud(bias)
array_electrons -= bias
header.bias = Array2DACS.manual_native(array=bias,
pixel_scales=0.05)
return cls.manual(array=array_electrons,
header=header,
pixel_scales=0.05)
def bottom_right(cls, array_electrons):
"""
Use an input array of a Euclid quadrant corresponding to the bottom-right of a Euclid CCD and rotate the
quadrant to the correct orientation for arCTIc clocking.
See the docstring of the `Array2DEuclid` class for a complete description of the Euclid FPA, quadrants and
rotations.
"""
array_electrons = layout_util.rotate_array_from_roe_corner(
array=array_electrons, roe_corner=(1, 1))
return cls.manual(array=array_electrons, pixel_scales=0.1)
def quadrant_convert_to_original(quadrant,
roe_corner,
use_flipud=False,
use_calibrated_gain=True):
if quadrant.header.bias is not None:
quadrant += quadrant.header.bias.native
if quadrant.header.bias_serial_prescan_column is not None:
quadrant += quadrant.header.bias_serial_prescan_column
if use_calibrated_gain:
quadrant /= quadrant.header.calibrated_gain
else:
quadrant /= quadrant.header.gain
quadrant = quadrant.header.array_from_electrons_to_original(array=quadrant)
if use_flipud:
quadrant = np.flipud(quadrant.native)
return layout_util.rotate_array_from_roe_corner(array=quadrant.native,
roe_corner=roe_corner)
def original_orientation_from(self, array):
return layout_util.rotate_array_from_roe_corner(
array=array, roe_corner=self.original_roe_corner
)
def original_orientation(self):
return layout_util.rotate_array_from_roe_corner(
array=self, roe_corner=self.header.original_roe_corner)