XEPD Installation Instruction
============================================================================

1) Unix Installation
--------------------

This document describes how to install the XEPD IDL package on a Unix
operation system.

Installing the XEPD Package
---------------------------
Donwload the XEPD_xx_xx.tar.gz from the Web size, and move the the zipped tar
file to the directory where you want to install the IDL modules.

    gunzip XEPD.tar.gz
    tar -xvf XEPD.tar


After the Installation-Seting IDL_PATH environment variable
-----------------------------------------------------------
Set the IDL_PATH such that IDL searches your IDL area first, and then the
directory where you install the XEPD.

setenv IDL_PATH your_customize_idl_directory:xepd_directory

you can put this line in your .login script

Setting the XEPD environment variable
-------------------------------------
1. Type IDL to enter into IDL

2. At the IDL prompt, type xepd
     idl> xepd

3. Under the Option menu, select the View/Edit Environment Variable
   a. Set your recordmode data directory
   b. Set your Real-Time data directory
   c. Set you XEPD top directory. For example, /project/galileo/xepd/
   d. Click the Ok button.
   
4. Under the file menu, chose 'save setting to default ctl file'. This will
   save the directory settings to xepd.ctl in the first directory in your
   IDL_PATH.
   
5. If you are installing the software for multiple user, you may move the
   xepd.ctl to xepd/idl directory so that every user in your institition get
   access to the same XEPD and data files.

Running the applications-the first time
---------------------------------------
1. Type IDL to enter into IDL

2. At the IDL prompt, type xepd
     idl> xepd



Customizing the user environment-font
-------------------------------------
1. Copy xepd_font.pro from xepd/idl directory to your idl directory, and
   edit the file to select the font.


Customizing the user environment-printer
----------------------------------------
1. Copy xprint_commands.pro from xepd/idl directory to your idl directory, and
   edit the print commands in that file to meet your need

2. If you are installing the software for your institution, you may want to 
   move this to xepd/idl directory.