DOCUMENTATION

SYNOPSIS

PROGRAM NAME: iSA (interactive Spectral Analysis) 
AUTHOR:  Juan Lorenzo

CHANGES and their DATES

DATE:    August 1 2016
Version  1.0 
         read iSpectralAnalysis.config text file
Version 1.1 Nov 8 2020use Moose;
		 accepts NaN as undeclared gather number

DESCRIPTION

Interactively pick muting parameters

USE

Examples

SEISMIC UNIX NOTES

STEPS

1.  use the local library of the user
1.1 bring is user variables from a local file
2.  create instances of the needed subroutines

NOTES

We are using Moose.
Moose already declares that you need debuggers turned on
so you don't need a linewlike the following:
use warnings;

USES the following classes:
sucat
and packages of subroutines
System_Variables
SeismicUnix

Instantiate classes:

Create a new version of the package 
with a unique name

Declare variables

in local memory space

Create Main Window

Start event-driven loop
Interaction with user
initialize values
If picks are new, show
message on how to pick data

set Message type to iSpectralAnalysis
Show instructions for first SpectralAnalysis

Decide whether to

   PICK or move on to NEXT CDP
   Place window near the upper left corner
   of the screen
Changing geometry of the toplevel window
my $h = $mw->screenheight();
my $w = $mw->screenwidth();
print("width and height of screen are $w,$h\n\n");
print("geometry of screen is $geom\n\n");

Display

data first time

Print

configuration
my @config = $mw->configure();
print Pretty @config;

Set the prompt

value according
to which button is pressed
then exit the MainLoop
destroy the main window after the prompt
is properly set

sub set_pick

callbacks

 send gather number to $iSA
 delete output of previous semblance
 plus more callbacks following...

sub set_calc

-PRESS the CALC button

Delete

the previous display

sub set_exit

saying goodbye 
clear old images
kill window
stop script