# Copyright (C) 2021 ISIS Rutherford Appleton Laboratory UKRI
# SPDX - License - Identifier: GPL-3.0-or-later
from __future__ import annotations
import uuid
import numpy as np
from mantidimaging.core.data import ImageStack
from mantidimaging.core.data.reconlist import ReconList
from mantidimaging.core.utility.data_containers import FILE_TYPES
def _delete_stack_error_message(images_id: uuid.UUID) -> str:
return f"Unable to delete stack: ImageStack with ID {images_id} not present in dataset."
def _image_key_list(key: int, n_images: int) -> list[int]:
return [key for _ in range(n_images)]
[docs]
def remove_nones(image_stacks: list[ImageStack | None]) -> list[ImageStack]:
return [image_stack for image_stack in image_stacks if image_stack is not None]
[docs]
class Dataset:
def __init__(
self,
*,
name: str = "",
stacks: list[ImageStack] | None = None,
sample: ImageStack | None = None,
flat_before: ImageStack | None = None,
flat_after: ImageStack | None = None,
dark_before: ImageStack | None = None,
dark_after: ImageStack | None = None,
) -> None:
self._id: uuid.UUID = uuid.uuid4()
self.name = name
self._recons = ReconList()
self._sinograms: ImageStack | None = None
stacks = [] if stacks is None else stacks
self._stacks: list[ImageStack] = stacks
self.sample = sample
self.flat_before = flat_before
self.flat_after = flat_after
self.dark_before = dark_before
self.dark_after = dark_after
if self.name == "" and sample is not None:
self.name = sample.name
@property
def id(self) -> uuid.UUID:
return self._id
@property
def sinograms(self) -> ImageStack | None:
return self._sinograms
@sinograms.setter
def sinograms(self, sino: ImageStack | None) -> None:
self._sinograms = sino
@property
def all(self) -> list[ImageStack]:
named_stacks = [
self.sample, self.proj180deg, self.flat_before, self.flat_after, self.dark_before, self.dark_after,
self.sinograms
]
return self.recons.stacks + self._stacks + remove_nones(named_stacks)
[docs]
def delete_stack(self, images_id: uuid.UUID) -> None:
if isinstance(self.sample, ImageStack) and self.sample.id == images_id:
self.sample = None
elif isinstance(self.flat_before, ImageStack) and self.flat_before.id == images_id:
self.flat_before = None
elif isinstance(self.flat_after, ImageStack) and self.flat_after.id == images_id:
self.flat_after = None
elif isinstance(self.dark_before, ImageStack) and self.dark_before.id == images_id:
self.dark_before = None
elif isinstance(self.dark_after, ImageStack) and self.dark_after.id == images_id:
self.dark_after = None
elif isinstance(self.proj180deg, ImageStack) and self.proj180deg.id == images_id:
assert self.sample is not None
self.sample.clear_proj180deg()
elif isinstance(self.sinograms, ImageStack) and self.sinograms.id == images_id:
self.sinograms = None
else:
for recon in self.recons:
if recon.id == images_id:
self.recons.remove(recon)
return
for image in self._stacks:
if image.id == images_id:
self._stacks.remove(image)
return
raise KeyError(_delete_stack_error_message(images_id))
def __contains__(self, images_id: uuid.UUID) -> bool:
return any(image.id == images_id for image in self.all)
@property
def all_image_ids(self) -> list[uuid.UUID]:
return [image_stack.id for image_stack in self.all if image_stack is not None]
@property
def recons(self) -> ReconList:
return self._recons
@property
def stacks(self) -> list[ImageStack]:
return self._stacks
[docs]
def add_recon(self, recon: ImageStack) -> None:
self.recons.append(recon)
[docs]
def delete_recons(self) -> None:
self.recons.clear()
[docs]
def add_stack(self, stack: ImageStack) -> None:
self._stacks.append(stack)
@property
def proj180deg(self) -> ImageStack | None:
if self.sample is not None:
return self.sample.proj180deg
else:
return None
@proj180deg.setter
def proj180deg(self, proj180deg: ImageStack | None) -> None:
if self.sample is None:
raise RuntimeError("Can't set a 180 projection without a sample")
self.sample.proj180deg = proj180deg
@property
def _nexus_stack_order(self) -> list[ImageStack]:
return list(filter(None, [self.dark_before, self.flat_before, self.sample, self.flat_after, self.dark_after]))
@property
def nexus_arrays(self) -> list[np.ndarray]:
return [image_stack.data for image_stack in self._nexus_stack_order]
@property
def nexus_rotation_angles(self) -> list[np.ndarray]:
proj_angles = []
for image_stack in self._nexus_stack_order:
angles = image_stack.real_projection_angles()
proj_angles.append(angles.value if angles else np.zeros(image_stack.num_images))
return proj_angles
@property
def image_keys(self) -> list[int]:
image_keys = []
if self.dark_before is not None:
image_keys += _image_key_list(2, self.dark_before.data.shape[0])
if self.flat_before is not None:
image_keys += _image_key_list(1, self.flat_before.data.shape[0])
if self.sample is not None:
image_keys += _image_key_list(0, self.sample.data.shape[0])
else:
raise RuntimeError("Unable to create image keys object without sample.")
if self.flat_after is not None:
image_keys += _image_key_list(1, self.flat_after.data.shape[0])
if self.dark_after is not None:
image_keys += _image_key_list(2, self.dark_after.data.shape[0])
return image_keys
[docs]
def set_stack(self, file_type: FILE_TYPES, image_stack: ImageStack) -> None:
attr_name = file_type.fname.lower().replace(" ", "_")
if file_type == FILE_TYPES.PROJ_180:
attr_name = "proj180deg"
if hasattr(self, attr_name):
setattr(self, attr_name, image_stack)
else:
raise AttributeError(f"Dataset does not have an attribute for {attr_name}")
[docs]
def set_stack_by_type_name(self, file_type_name: str, image_stack: ImageStack) -> None:
file_type_name = file_type_name.upper().replace(" ", "_")
if file_type_name == "RECON":
self.add_recon(image_stack)
elif file_type_name == "IMAGES":
self.stacks.append(image_stack)
elif file_type_name == "SINOGRAMS":
self._sinograms = image_stack
else:
file_type = getattr(FILE_TYPES, file_type_name)
self.set_stack(file_type, image_stack)
@property
def is_processed(self) -> bool:
"""
:return: True if any of the data has been processed, False otherwise.
"""
for image in self.all:
if image.is_processed:
return True
return False
def _get_stack_data_type(stack_id: uuid.UUID, dataset: Dataset) -> str:
"""
Find the data type as a string of a stack.
:param stack_id: The ID of the stack.
:param dataset: The parent dataset of the stack.
:return: A string of the stack's data type.
"""
if stack_id in [recon.id for recon in dataset.recons]:
return "Recon"
if stack_id in [stack.id for stack in dataset._stacks]:
return "Images"
if dataset.sample is not None and stack_id == dataset.sample.id:
return "Sample"
if dataset.flat_before is not None and stack_id == dataset.flat_before.id:
return "Flat Before"
if dataset.flat_after is not None and stack_id == dataset.flat_after.id:
return "Flat After"
if dataset.dark_before is not None and stack_id == dataset.dark_before.id:
return "Dark Before"
if dataset.dark_after is not None and stack_id == dataset.dark_after.id:
return "Dark After"
if dataset.proj180deg is not None and stack_id == dataset.proj180deg.id:
return "180"
raise RuntimeError(f"No stack with ID {stack_id} found in dataset {dataset.id}")