bluesky.preprocessors.relative_set_decorator

bluesky.preprocessors.relative_set_decorator(plan, devices=None)

Interpret ‘set’ messages on devices as relative to initial position.

Parameters

planiterable or iterator

a generator, list, or similar containing Msg objects

devicescollection or None, optional

if default (None), apply to all devices that are moved by the plan

Yields

msgMsg

messages from plan, with ‘read’ messages inserted and ‘set’ messages mutated