Package: wnpp Severity: wishlist
* Package name : gsac Version : 3.30 Upstream Author : Robert B. Herrmann Name <[EMAIL PROTECTED]> * URL : http://mnw.eas.slu.edu/People/RBHerrmann/ComputerPrograms.html * License : Description : GSAC Generic Seismic Application Coding (Include the long description here.) SAC, the Seismic Analysis Code, was created by researchers at the Lawrence Liver more National Laboratory in the early 1980's. Initially distributed as a FORTRAN program with low level routines in C, SAC became widely used by the earthquake research community. The current SAC2000 is written in C, and is distributed as an execuable binary form for several common platforms. SAC and SAC2000 actually permit more than simple manipulation of seismic traces. The macro script language and signal processing features make it a processing tool that has only recently been supplanted in capabilites by commercial packages such at MATLAB, MATHCAD and Mathematica. The other contribution of SAC was the definition of a seismic trace file. The concept of this file is similar to that use in seismic exploration for which the trace consists of a trace header and the binary trace itself. Many programs have been written to use the SAC trace files. This was encouraged in the original SAC distribution by ready access to a library of input/output routines for the FORTRAN and C languages. Unfortunately SAC/SAC2000 has become dated because of its monilithic structure, the previously closed source distribution, and advances in computer platforms. The signal processing capabilities have been supplanted by MATLAB and Mathematica, the support of 24 bit color displays under X11 is lacking, and the assumptions about the underlying X11 support engine have become dated. With this in mind, we decided to write a program to permit necessary seismic trace manipulation from scratch. Starting, March 27, 2004, we created a functional GSAC by June 1, 2004 without much effort. GSAC takes its name from the free gcc and g77 compilers used, with the corresponding commitment to open sources. SAC is a group effort to provide documented tools for manipulating seismic traces which happen to be stored in a SAC file format. GSAC thus emphasizes waveform processing rather than a specific implementation. Thus GSAC is meant to be all inclusive which means that the concept will encompass different underlying operating systems (UNIX, LINUX, MacOS-X, Windows), different hardware architectures (IEEE bigendian and little-endian), and different development environments (gcc/g77, MATLAB, Maple, etc). The design goals of the GSAC project are simple: ยท Platform independent seismic waveform calculator core routines, with front ends that permit command line operation, especially within shell scripts. -- 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) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]