calc_duration.py
33390df68b0ffeature-gammamri

calc_duration.py
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			from types import SimpleNamespace


			def calc_duration(*events: list) -> float:
			"""
			Calculate the cumulative duration of Events.

			Parameters
			----------
			events : list
			List of `SimpleNamespace` events. Can also be a list containing a single block (see
			`pypulseq.Sequence.sequence.plot()`).

			Returns
			-------
			duration : float
			The cumulative duration of the pulse events in `events`.
			"""

			for e in events:
			if isinstance(e, SimpleNamespace) and isinstance(getattr(e, list(e.__dict__.keys())[0]), SimpleNamespace):
			events = list(e.__dict__.values())
			break

			duration = 0
			for event in events:
			if not isinstance(event, SimpleNamespace):
			raise TypeError("input(s) should be of type SimpleNamespace")

			if event.type == 'delay':
			duration = max(duration, event.delay)
			elif event.type == 'rf':
			duration = max(duration, event.delay + event.t[-1])
			elif event.type == 'grad':
			duration = max(duration, event.t[-1] + event.t[1] - event.t[0] + event.delay)
			elif event.type == 'adc':
			duration = max(duration, event.delay + event.num_samples * event.dwell + event.dead_time)
			elif event.type == 'trap':
			duration = max(duration, event.delay + event.rise_time + event.flat_time + event.fall_time)

			return round(duration, ndigits=6)