Bug#344300: RFP: seplib -- SEPlib is a complete and freely distributed seismic data processing software package.
Package: wnpp
Severity: wishlist
* Package name : seplib
Version : 6.0
Upstream Author : Stanford Exploration Project
* URL : http://sepwww.stanford.edu/software/seplib/
* License :
Description : SEPlib is a complete and freely distributed seismic data processing software package.
(Include the long description here.)
SEPlib is a complete and freely distributed seismic data processing
software package.
SEPlib comprises several concepts and software pieces:
* Data cube concept. The simple data base concept that underlies the
original SEPlib package assumes the data to be regularly sampled in all
dimensions. SEPlib stores such a "cube" as a matrix of numbers. It takes
2 files to store such a regular data cube: A data file stores the data
values as one long array/ A separate header file stores house holding
information such as the number of samples along each cube axis (eg.
n1=1002,n2=256,n3=96) or the increment between samples (e.g.
d1=0.004,d2=0.01,d3=0.025 ).
* Data base concept for irregular data. Recently, SEP3d added support for
irregular data to the basic data cube concept described in the last
paragraph.
* Seismic processing routines. SEPlib offers a collection of basic seismic
processing routines such as Phase Shift migration (Phase) or a velocity
stacking (Velan). These SEPlib programs perform simple operations. For
complex manipulations several programs are stringed together via pipes.
For example
Spike n1=32 n2=16 k1=4 k2=4 nsp=1 | Phase inv=1 > data.H
generates the modeling response of a diffractor in a constant velocity
2-D medium. Every routine prints its own documentation when it is
executed without any argument. (When installing SEPlib you can convert
these self documentations into regular UNIX Man pages).
* Vplot, a graphics library. Vplot is a plotting package for UNIX systems.
It supports line, area, text, and raster graphics primitives for many
screen and hardcopy devices. Vplot is not restricted in any way to
display seismic images, but it does it wonderfully. Especially its
rastering and dithering of grey-scale plots and its sleek integration
into the entire SEPlib framework make it a natural complement to the rest
of SEPlib.
* IO subroutine library. The core of SEPlib is its handling of input and
output of data and header information. For example sreed() is a
powerful, low-level subroutine that reads data from a SEPlib data file or
the standard input. Equally important are subroutines such as putch or
hetch and its companions that put parameters to the output history file
or fetch them from the command line or the input history file. Standard
UNIX man pages document these subroutines.
* Preprocessors for FORTRAN code. FORTRAN 77 (and hence Ratfor) cannot
allocate memory for arrays at runtime. Two SEP-grown preprocessors (sawor
Stanford Auto Writer for main programs and sat Stanford Auto
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (990, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-1-k7
Locale: LANG=es_CL, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
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