SYNOPSIS

PERL PROGRAM NAME:

AUTHOR: Juan Lorenzo (Perl module only)

DATE:

DESCRIPTION:

Version:

USE

NOTES

Examples

SYNOPSIS

SEISMIC UNIX NOTES SU3DCHART - plot x-midpoints vs. y-midpoints for 3-D data

 su3dchart <stdin >stdout					



 Optional parameters:						

 outpar=null	name of parameter file				

 degree=0	=1 convert seconds of arc to degrees		



 The output is the (x, y) pairs of binary floats		



 Example:							

 su3dchart <segy_data outpar=pfile >plot_data			

 psgraph <plot_data par=pfile \\				

	linewidth=0 marksize=2 mark=8 | ...			

 rm plot_data 							



 su3dchart <segy_data | psgraph n=1024 d1=.004 \\		

	linewidth=0 marksize=2 mark=8 | ...			



 Note:  sx, etc., are declared double because float has only 7

 significant numbers, that's not enough, for example,    

 when tr.scalco=100 and coordinates are in second of arc    

 and located near 30 degree latitude and 59 degree longitude           

                                                            





 Credits:

	CWP: Shuki Ronen

	Toralf Foerster



 Trace header fields accessed: sx, sy, gx, gy, counit, scalco.

User's notes (Juan Lorenzo) untested

CHANGES and their DATES

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

sub degree

sub linewidth

sub n

sub outpar

sub par

sub scalco

sub get_max_index

max index = number of input variables -1