# -*- coding: utf-8 -*-
import uuid
from typing import MutableSequence, MutableMapping, Sequence
from .state import State, StateMutableSequence, CategoricalState, CompositeState
from ..base import Property
[docs]class GroundTruthState(State):
"""Ground Truth State type"""
metadata: MutableMapping = Property(
default=None, doc='Dictionary of metadata items for Detections.')
def __init__(self, state_vector, *args, **kwargs):
super().__init__(state_vector, *args, **kwargs)
if self.metadata is None:
self.metadata = {}
[docs]class CategoricalGroundTruthState(GroundTruthState, CategoricalState):
"""Categorical Ground Truth State type"""
[docs]class GroundTruthPath(StateMutableSequence):
"""Ground Truth Path type
A :class:`~.StateMutableSequence` representing a track.
"""
states: MutableSequence[GroundTruthState] = Property(
default=None,
doc="List of groundtruth states to initialise path with. Default "
"`None` which initialises with an empty list.")
id: str = Property(
default=None,
doc="The unique path ID. Default `None` where random UUID is "
"generated.")
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
if self.id is None:
self.id = str(uuid.uuid4())
[docs]class CompositeGroundTruthState(CompositeState):
"""Composite ground truth state type.
A composition of ordered sub-states (:class:`GroundTruthState`) existing at the same timestamp,
representing a true object with a state for (potentially) multiple, distinct state spaces.
"""
sub_states: Sequence[GroundTruthState] = Property(
doc="Sequence of sub-states comprising the composite state. All sub-states must have "
"matching timestamp and `metadata` attributes. Must not be empty.")
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@property
def metadata(self):
"""Combined metadata of all sub-detections."""
metadata = dict()
for sub_state in self.sub_states:
metadata.update(sub_state.metadata)
return metadata
GroundTruthState.register(CompositeGroundTruthState) # noqa: E305