CustomScan#
- class abtem.scan.CustomScan(positions=(0.0, 0.0), squeeze=False)[source]#
Bases:
BaseScan
Custom scan based on explicit 2D probe positions.
- Parameters:
positions (np.ndarray, optional) – Scan positions [Å]. Anything that can be converted to an ndarray of shape (n, 3) is accepted. Default is (0., 0.).
Methods
__init__
([positions, squeeze])apply
(waves)Apply the transform to the given waves.
copy
()Make a copy.
ensemble_blocks
([chunks])Split the ensemble into an array of smaller ensembles.
generate_blocks
([chunks])Generate chunks of the ensemble.
Get the scan positions as numpy array.
match_probe
(probe)Sets the positions to a single position in the center of the probe extent.
select_block
(index, chunks)Select a block from the ensemble.
Attributes
List of AxisMetadata.
List of AxisMetadata of the base axes.
Shape of the base axes.
distributions
Axes metadata describing the ensemble axes added to the waves when applying the transform.
The shape of the ensemble axes added to the waves when applying the transform.
The array representing the waves may be modified in-place.
Lower left and upper right corner of the bounding box containing all positions in the scan.
Metadata added to the waves when applying the transform.
Number of probe positions in the scan.
Scan positions [Å].
The shape the scan.
- apply(waves)#
Apply the transform to the given waves.
- Parameters:
array_object (ArrayObject) – The array object to transform.
- Returns:
transformed_array_object
- Return type:
- property axes_metadata: AxesMetadataList#
List of AxisMetadata.
- property base_axes_metadata: list[AxisMetadata]#
List of AxisMetadata of the base axes.
- property base_shape: tuple[int, ...]#
Shape of the base axes.
- copy()#
Make a copy.
- property ensemble_axes_metadata#
Axes metadata describing the ensemble axes added to the waves when applying the transform.
- ensemble_blocks(chunks=None)#
Split the ensemble into an array of smaller ensembles.
- Parameters:
chunks (iterable of tuples) – Block sizes along each dimension.
- Return type:
Array
- property ensemble_shape: tuple[int, ...]#
The shape of the ensemble axes added to the waves when applying the transform.
- generate_blocks(chunks=1)#
Generate chunks of the ensemble.
- Parameters:
chunks (iterable of tuples) – Block sizes along each dimension.
- property in_place: bool#
The array representing the waves may be modified in-place.
- property limits#
Lower left and upper right corner of the bounding box containing all positions in the scan.
- match_probe(probe)[source]#
Sets the positions to a single position in the center of the probe extent.
- Parameters:
probe (Probe or BaseSMatrix) – The matched probe or s-matrix.
- property metadata: dict#
Metadata added to the waves when applying the transform.
- property num_positions: int#
Number of probe positions in the scan.
- property positions#
Scan positions [Å].
- select_block(index, chunks)#
Select a block from the ensemble.
- Parameters:
index (tuple of ints) – Index of selected block.
chunks (iterable of tuples) – Block sizes along each dimension.
- property shape#
The shape the scan.