SYNOPSIS
PERL PROGRAM NAME:
AUTHOR: Juan Lorenzo (Perl module only)
DATE:
DESCRIPTION:
Version: 0.0.2 1.30.23
USE
Usage 1: To kill an array of trace numbers
Example: $sukill->tracl(\@array); $sukill->Steps()
Usage 2: To kill a single of trace number count=1 (default if omitted)
Example: $sukill->min('2'); $sukill->Step()
If you read the file directly into sukill then also us sukill->file('name')
Usage 3: $sukill->list(list_of_traces_to_kill) $sukill->su_base_file_name(file_in_seismic_unix_format)
NOTES
Examples
SYNOPSIS
SEISMIC UNIX NOTES SUKILL - zero out traces
sukill <stdin >stdout [optional parameters]
Optional parameters:
key=trid header name to select traces to kill
a=2 header value identifying traces to kill
or
min= first trace to kill (one-based)
count=1 number of traces to kill
Notes:
If min= is set it overrides selecting traces by header.
Credits:
CWP: Chris Liner, Jack K. Cohen
header-based trace selection: Florian Bleibinhaus
Trace header fields accessed: ns
CHANGES and their DATES
JML V0.0.2, 1.30.23
Normally, sukill can kill contiguous traces.
To kill while skipping traces requires an
iteration (i.e., logical for loop) over the same file.
In V0.0.2 I wrap an extension to process an arbitrary
list of trace numbers. I automate the iteration by including
two additional parameters: list and su_base_file_name
The parameter "list" is the name of a text file.
The file is automatically bound to the SEIMICS_DATA_TXT
directory path.
"list" is the name of a file containing a numeric list
of trace numbers of type "key" that are to be deleted:
An example list
file contains values, one per line.
1
3
5
"list" = a file name (in directory path: DATA_SEISMICS_TXT)
su_base_file_name = e.g., 1001, which by defaults lies
in directory path: DATA_SEISMIC_SU
Notes:
If list is used then su_base_file_name and key MUST be used
If list is used ONLY su_base_file_name and key CAN be used
Within code, the imported "list" includes path and name;
hence its name: _inbound_list. User enters a list name in
GUI using the mouse <MB3>.
Import packages
instantiation of packages
Encapsulated hash of private variables
sub Step
collects switches and assembles bash instructions by adding the program name
sub note
collects switches and assembles bash instructions by adding the program name
sub clear
_check4inbound_listNkey
sub _get_inbound
sub _get_trace_numbers
sub _set_inbound_list
sub a
sub count
sub key
sub list
list array
sub min
sub su_base_file_name
su_base_file_name
sub get_max_index
max index = number of input variables -1