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Section 1.5

soever. They should be regarded as potentially useful resources to be hacked into shape as needed
by the user. This directory is available from the CCP5 Program Library by direct FTP(see below).

1.4.8

The java Sub-directory

The DL POLY 3 Java Graphical User Interface (GUI) is based on the Java language developed
by Sun. The Java source code for this GUI is to be found in this sub-directory, along with a few
FORTRAN sub-sub-directories which contain some additional capabilities accessible from the GUI.
These sources are complete and sufficient to create a working GUI, provided the user has installed
the Java Development Kit, (1.3 or above) which is available free from Sun at

http : //java.sun.com

The GUI, once compiled, may be executed on any machine where Java is installed, though note
the FORTRAN components will need to be recompiled if the machine is changed [

1.5

Obtaining the Source Code

To obtain a copy of DL POLY 3 it is first necessary to obtain a licence from Daresbury Laboratory.
A copy of the licence form may be obtained in two ways: either by selecting the licence button on
the World Wide Web site:

http : //www.cse.clrc.ac.uk/msi/sof tware/DL P OLY

and downloading and printing the file, or by using FTP to copy the postscript file from the CCP5
Program Library at Daresbury Laboratory in the following manner:

1. move to the desired directory on YOUR machine,

2. type: ftp ftp.dl.ac.uk

3. enter userid: anonymous

4. enter passwd: (use your name and site)

5. change to the directory: cd ccp5/DL POLY/DOCUMENTS

6. type: binary

7. type: get LICENCE.ps.Z or get GROUP.LICENCE.ps.Z

8. type: quit

The licence file will need to be uncompressed (using the unix uncompress command) before printing.
Note that there are two versions of the licence available; one for single academic users (with perhaps
one or two postgraduate students); and one for academic groups (with perhaps several research
staff, including postdoctoral and permanent staff). Choose the one most suitable for you. The
licences are package licences which allow you access to all the DL POLY software.

Once you have obtained the licence form, you should sign it and return it to the following address: