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