/************************************************************************/
/**                                                                    **/
/**                   Linux Installation of DISLIN                     **/
/**                                                                    **/
/** Contents: 1.) Introduction                                         **/
/**           2.) Installing the RPM distribution of DISLIN            **/
/**           3.) Installation of the tar.gz Distribution              **/
/**           4.) Compiling, Linking and Running the Example Programs  **/ 
/**           5.) Getting a DISLIN License                             **/
/**           6.) Web Sites.                                           **/
/**                                                                    **/
/** Date   : 15.11.2005                                                **/
/** Version: 9.0  / Linux, Intel Fortran/C compiler                    **/
/** Author : Helmut Michels                                            **/
/**          MPI fuer Sonnensystemforschung, Max-Planck-Str. 2,        **/
/**          D-37191 Katlenburg-Lindau, Germany                        **/
/** Mail:    michels@mps.mpg.de                                        **/
/************************************************************************/


1.) Introduction

   DISLIN is a high level and easy to use graphics library for displaying
   data as curves,  bar graphs,  pie charts,  3D-colour plots,  surfaces,
   contours and maps. The software is available for several C, Fortran 77
   and Fortran 90 compilers.

   The UNIX versions of the graphics software  DISLIN  are distributed as 
   compressed tar files with the file names 'dislin-n.m.xxx.tar.gz' where
   'n.m' contains the DISLIN version while the part 'xxx'  identifies the 
   operating system or compiler.  


2.) Installing the RPM distribution of DISLIN

   The installtion of the RPM distribution of DISLIN for Linux is
   very easy. Give the command

                  rpm -i  dislin-9.0.linux.if.rpm

   This installs DISLIN in the directory '/usr/local/dislin'. The DISLIN
   utilities are copied to '/usr/bin' and links to the DISLIN libraries
   are created in '/usr/lib'.

   To uninstall DISLIN give the command:

                  rpm -e  dislin_if 

   Notes:  -  You must be root to install the RPM distribution of DISLIN
              for Intel Fortran/C.

           -  The RPM package 'dislin' is required.

           -  It's not necessary to define the environment variable
              DISLIN, or to change the PATH and LD_LIBRARY_PATH 
              environments for the RPM distribution of DISLIN.


3.) Installation of the tar.gz Distribution

a) Uncompress the tar.gz file with the command

                  gzip -d     dislin-9.0.linux.if.tar.gz


b) Restore files from the tar file with the command

                  tar   xvf   dislin-9.0.linux.if.tar    

c) Change to the extraction directory of DISLIN

                  cd    dislin-9.0

d) Choose a directory in the file structure where DISLIN should be
   installed and define the environment variable DISLIN with it:

   For example:    DISLIN=$HOME/dislin     (or: /usr/local/dislin)
                   export DISLIN
    
e) Run the install program with the command 

                   INSTALL

   This program copies files to $DISLIN and sets protections.

f) To make DISLIN available for general use, write the following com-
   mands to your .profile or to /etc/profile

                    DISLIN=directory                     
                    export DISLIN
                    PATH=${PATH}:${DISLIN}/bin

                    LD_LIBRARY_PATH=$DISLIN:$LD_LIBRARY_PATH
                    export LD_LIBRARY_PATH

   Note: The environment variable DISLIN is not necessary if DISLIN
         is installed in the default directory '/usr/local/dislin'. 

g) You can delete the directory 'dislin-9.0'.


4.) Compiling, Linking and Running the Example Programs

   Now you can compile, link and run the example programs in the
   directory $DISLIN/examples with the commands:

                    iclink    -a exa_c         (for C)       
                    if77link  -a exa_f77       (for Fortran 77)
                    if90link  -a exa_f90       (for Fortran 90) 
   and
                    iclink    -a map_c         (for C)       
                    if77link  -a map_f77       (for Fortran 77)
                    if90link  -a map_f90       (for Fortran 90)


   Note:  - iclink, if77link and if90link link by default with the DISLIN
            single precision libraries libdislnc.so and libdislin.so. 
            Double precision versions of the libraries for real numbers 
            are included in this distribution (libdislnc_d.so, 
            libdislin_d.so).


5.) Getting a DISLIN License

   DISLIN is free for non-commercial use. Licenses for selling programs
   linked with DISLIN or for using DISLIN in an environment related to
   business are available from the site http://www.dislin.de. 


6.) Web Sites

   DISLIN is available via ftp anonymous from the following site:

      ftp://ftp.gwdg.de/pub/grafik/dislin 

   The DISLIN home page is:

      http://www.dislin.de
