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lib/App/SeismicUnixGui/sunix/header/surandhw.pm  view on Meta::CPAN

package App::SeismicUnixGui::sunix::header::surandhw;

=head2 SYNOPSIS

PERL PROGRAM NAME: 

AUTHOR: Juan Lorenzo (Perl module only)

DATE:

DESCRIPTION:

Version:

=head2 USE

=head3 NOTES

=head4 Examples

=head2 SYNOPSIS

=head3 SEISMIC UNIX NOTES
 surandhw - set header word to random variable 		



 surandhw <stdin >stdout key=tstat a=0 min=0 max=1		



 Required parameters:						

 	none (no op)						



 Optional parameters:						

 	key=tstat	header key word to set			

 	a=0		=1 flag to add original value to final key

 	noise=gauss	noise probability distribution		

 			=flat for uniform; default Gaussian	

 	seed=from_clock	random number seed (integer)		

 	min=0		minimum random number			

 	max=1		maximum radnom number		 	



 NOTES:							

 The value of header word key is computed using the formula:	

 	val(key) = a * val(key) + rand				



 Example:							

  	surandhw <indata key=tstat a=0 min=0 max=10  > outdata	



=head2 User's notes (Juan Lorenzo)
untested

=cut


=head2 CHANGES and their DATES

=cut

use Moose;
our $VERSION = '0.0.1';


=head2 Import packages

=cut

use aliased 'App::SeismicUnixGui::misc::L_SU_global_constants';

use App::SeismicUnixGui::misc::SeismicUnix qw($go $in $off $on $out $ps $to $suffix_ascii $suffix_bin $suffix_ps $suffix_segy $suffix_su);
use aliased 'App::SeismicUnixGui::configs::big_streams::Project_config';


=head2 instantiation of packages

=cut

my $get					= L_SU_global_constants->new();
my $Project				= Project_config->new();
my $DATA_SEISMIC_SU		= $Project->DATA_SEISMIC_SU();
my $DATA_SEISMIC_BIN	= $Project->DATA_SEISMIC_BIN();
my $DATA_SEISMIC_TXT	= $Project->DATA_SEISMIC_TXT();

my $PS_SEISMIC      	= $Project->PS_SEISMIC();

my $var				= $get->var();
my $on				= $var->{_on};
my $off				= $var->{_off};
my $true			= $var->{_true};
my $false			= $var->{_false};
my $empty_string	= $var->{_empty_string};

=head2 Encapsulated
hash of private variables

=cut

my $surandhw			= {