obspy.io.segy.segy

Routines to read and write SEG Y rev 1 encoded seismic data files.

Public Functions

autodetect_endian_and_sanity_check_su	Takes an open file and tries to determine the endianness of a Seismic Unix data file by doing some sanity checks with the unpacked header values.
iread_segy	Iteratively read a SEG-Y field and yield single ObsPy Traces.
iread_su	Iteratively read a SU field and yield single ObsPy Traces.

Private Functions

Warning

Private functions are mainly for internal/developer use and their API might change without notice.

_internal_iread_segy	Iteratively read a SEG-Y field and yield single ObsPy Traces.
_internal_iread_su	Iteratively read a SU field and yield single ObsPy Traces.
_internal_read_segy	Reads on open file object and returns a SEGYFile object.
_internal_read_su	Reads on open file object and returns a SUFile object.
_read_segy	Reads a SEG Y file and returns a SEGYFile object.
_read_su	Reads a Seismic Unix (SU) file and returns a SUFile object.

Classes

SEGYBinaryFileHeader	Parses the binary file header at the given starting position.
SEGYFile	Class that internally handles SEG Y files.
SEGYTrace	Convenience class that internally handles a single SEG Y trace.
SEGYTraceHeader	Convenience class that handles reading and writing of the trace headers.
SUFile	Convenience class that internally handles Seismic Unix data files.

Exceptions

SEGYError	Base SEGY exception class.
SEGYInvalidTextualHeaderWarning	Warning that is raised if an invalid textual header is about to be written.
SEGYTraceHeaderTooSmallError	Raised if the trace header is not the required 240 byte long.
SEGYTraceOnTheFlyDataUnpackingError	Raised if attempting to unpack trace data but no unpack_data() function exists.
SEGYTraceReadingError	Raised if there is not enough data left in the file to unpack the data according to the values read from the header.
SEGYWarning	SEG Y warnings base class.
SEGYWritingError	Raised if the trace header is not the required 240 byte long.