SegyScan

SegyScan(fh, records, fs=None)

Representation of SEGY data grouped by shot.

Parameters

Name	Type	Description	Default
fh	FileHeader	File header shared by all scanned files.	required
records	list of ShotRecord	Collection of shot metadata describing trace segments.	required

Attributes

Name	Description
counts	Total number of traces for each shot.
data	Load data for all shots on first access.
offsets	First trace byte offset for every shot.
paths	List of file paths corresponding to each shot.
shots	Source coordinates for each shot including depth.

Methods

Name	Description
read_data	Load all traces for a single shot.
read_headers	Read only the headers for a single shot.
summary	Header summaries for the idx-th shot.

read_data

read_data(idx, keys=None)

Load all traces for a single shot.

Parameters

Name	Type	Description	Default
idx	int	Index of the shot to read.	required
keys	Iterable[str]	Additional header fields to load with each trace.	None

Returns

Name	Type	Description
	SeisBlock	In-memory representation of the selected shot.

read_headers

read_headers(idx, keys=None)

Read only the headers for a single shot.

Parameters

Name	Type	Description	Default
idx	int	Shot index to read.	required
keys	Iterable[str]	Header fields to populate; by default all are read.	None

Returns

Name	Type	Description
	list of BinaryTraceHeader	Parsed headers for the requested shot.

summary

summary(idx)

Header summaries for the idx-th shot.