vallenae.io.TraDatabase.iread¶
-
TraDatabase.
iread
(*, channel=None, time_start=None, time_stop=None, trai=None, query_filter=None)[source]¶ Stream transient data with returned Iterable.
- Parameters
channel (
Union
[None
,int
,Sequence
[int
]]) – None if all channels should be read. Otherwise specify the channel number or a list of channel numberstime_start (
Optional
[float
]) – Start reading at relative time (in seconds). Start at beginning if Nonetime_stop (
Optional
[float
]) – Stop reading at relative time (in seconds). Read until end if Nonetrai (
Union
[None
,int
,Sequence
[int
]]) – Read data by TRAI (transient recorder index)query_filter (
Optional
[str
]) – Optional query filter provided as SQL clause, e.g. “Pretrigger == 500 AND Samples >= 1024”
- Return type
SizedIterable
[TraRecord
]- Returns
Sized iterable to sequential read transient data