Installation

This is a description of how to install the ANSIG v3.3 distribution from the FTP distribution files. It is assumed that you have fetched the necessary files from the official anonymous FTP site (nirvana.bioc.cam.ac.uk). There are two variants of distribution files:
  1. compressed using the UNIX utility compress
  2. gzipped using the GNU program gzip
Both distribution files are tar files containing directory trees of files.

Procedure

You probably need system privileges as 'root' to do this properly.

First, change directory to where the ANSIG directory tree is supposed to be. In the description below, this is assumed to be /usr/local. Move the compressed/gzipped tar file to there: 

     # mv ansig.tar.Z /usr/local
Next, uncompress/gunzip the tar file: 
     # uncompress ansig.tar.Z
or
     # gunzip ansig.tar.gz
Then unpack the tar file: 
     # tar xpovf ansig.tar
This will create the two directories forlib and ansig. You may already have a forlib directory for MolScript. If this is for MolScript version 1.4, then there is no problem; ANSIG v3.3 and MolScript v1.4 both use the same forlib. If you have an older MolScript version, then you should save that forlib in some other place, or get the new version of MolScript (email molscript@bioc.cam.ac.uk for further information).

Then build the ANSIG executables: 

     # cd forlib
     # make
     # cd ../ansig/irix
     # make all
This will create the ansig executable for ordinary work, the nogansig executable for work without the graphics, and the different matrix conversion programs. The executables should probably be moved to the /usr/local/bin directory, so that they are easily accessible in the user's path.

Documentation

The documentation for ANSIG v3.3 exists in the form of HTML files for on-line access with Netscape or some other browser. The top file is ansig.html in the ansig/doc directory.
Per Kraulis 16 Apr 1996.