mantidimaging.core.data.geometry module

class mantidimaging.core.data.geometry.Geometry(type: GeometryType = GeometryType.PARALLEL3D, num_pixels: list | tuple = (10, 10), pixel_size: list | tuple = (1.0, 1.0), source_position: list | tuple = (0, -1, 0), detector_position: list | tuple = (0, 1, 0), angle_unit: str = 'radian', units: str = 'default', *args, **kwargs)

Bases: AcquisitionGeometry

property cor: ScalarCoR

Converts the internal CIL-convention COR (defined at the midpoint of the image) to MI-convention.

:return (ScalarCoR) : the MI-convention Centre-of-Rotation (defined at the top of the image).

property detector_position: float

get_all_cors() → list[ScalarCoR]

Returns all cors across How many cors will be generated,

this should be equal to the image height (i.e. number of sinograms that will be reconstructed)

Returns:

List of cors for every slice of the image height

get_cor_at_slice_index(slice_idx: int) → ScalarCoR

Returns a single scalar cor at the specified index

Parameters:

slice_idx – The slice index.

Returns:

ScalarCoR object with cor at the specified index

set_geometry_from_cor_tilt(cor: ScalarCoR, tilt: float) → None

Set’s the geometry’s CIL-convention Offset and Angle from the MI-convention Centre-of-Rotation and Tilt.

Parameters:

• cor (ScalarCoR) – A ScalarCoR object defining the MI-convention centre of rotation as a float value.

• tilt (float) – A float value defining the tilt in degrees.

set_source_detector_positions(source_pos: float, detector_pos: float) → None

property source_position: float

property tilt: float

Returns the tilt in degrees

property type: GeometryType

Returns the MI Geometry type.

Wraps CIL AcquisitionGeometry’s internal data based on the types currently supported by Mantid Imaging.

:return (GeometryType) : The MI Geometry enum with a display-friendly value field.

class mantidimaging.core.data.geometry.GeometryType(*values)

Bases: Enum

CONE3D = 'Cone 3D'

PARALLEL3D = 'Parallel 3D'