
	      GLE 3.3 h for LINUX ported by Axel Rohde
	      ----------------------------------------

	  Advertisement section by the author Chris Pugmire
	  -------------------------------------------------

 GLE is a hi quality graphics package for scientists.  GLE
 combines a user friendly interface with a full range of
 facilities for producing publication quality graphs, diagrams,
 posters and slides.  GLE runs on PC's, VAXes and Unix.

 It provides LATEX quality fonts together with a flexible 
 graphics module which allows the user to specify any feature 
 of a graph (down to the line width of the subticks for example)

 Complex pictures can be drawn with user defined subroutines and 
 simple looping structures.

 The SURFACE utility allows hidden line surface plotting.

 The CONTOUR utility allows contour plots. 

 The MANIP utility allows columns of data to be manipulated.

 The FITLS utility allows arbitrary equations to be fitted to 
 data.

 Current device drivers support XWindows, REGIS, TEK4010, all PC 
 graphics cards, VT100's, HP-Plotters, PostScript Printers, EPSON 
 Printers and LaserJet/Paintjet Printers.

 GLE runs on VAX-VMS, UNIX and PC's, giving a near identical user interface
 on all platforms.

 For information on ftp sites for VMS or UNIX versions of GLE, or any
 other questions send a mail message to:
			srghcxp@grv.dsir.govt.nz



		Installation section by Axel Rohde
		----------------------------------

 You need two environment-variables to run gle:

 Add this to your profile if you're using a Bourne- or Korn style shell (BASH
 or ZSH):

 export GLE_TOP="/usr/local/gle"
 export GRXFONT="/usr/local/gle/grxfont"

 If you're using a C-Shell (CSH, TCSH) add the following lines instead:

 setenv GLE_TOP "/usr/local/gle"
 setenv GRXFONT "/usr/local/gle/grxfont"
 
 This version is compiled with NCURSES 1.8.5. It requires an installed TERMINFO
 database. Since the NCURSES are part of the most Linux distributions, I
 omitted it.

 In order to make all function-Keys effective ( F1-F10, Home, End, Del)
 you must change your keymap. Take a look into the subdirectory
 Linux-Keymaps


!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 gle_vga and surf_vga must be  set-user-id root  to work.
 They are a great security hole, if any user can execute them!!!!!
 You have to set the attributes on your own (risk).
 To allow all users to use the execute:
 chmod a+s gle_vga surf_vga

 I omitted the REGIS and VT drivers, since they don't work under Linux.



			New features
			------------

    surface has a new keyword: nobigfile
    If 'nobigfile' is specified somewhere in a .sur file, surface does
    not waste time to write a .big file for GLE. This increases the
    performance while you're 'designing' the plot.

   GLE tries to read files to **include** from two library directories, too.
   The system wide library directory is GLE_TOP/lib. Each user (I don't plan
   to write a 'multi user DOS') can have an additional library directory:

	export	GLE_USRLIB=/home/joe/glelib

   Try to run ftest.gle.




 That's all...
	for those who are not curious enough to read the next lines...

 GLE_VGA and SURF_VGA are programs, that you will not find in the
 source-distribution. They're using and very old version of svgalib and
 an alpha-release of GRX for Linux and BCC2GRX 1.3 by Hartmut Schirmer.
 BCC2GRX maps calls of Borland's Graphic Interface (BGI from TURBO Pascal and C)
 to GRX calls. GRX is a Graphics-Library by Csaba Biegl that is used with
 D. J. Delorie's GNU C port DJGPP for MS-DOS. Hartmut ported GRX to Linux.
 It sits on top of SVGALIB. Due to restrictions, only VGA resolution at 60Hz
 refresh rate is supported. GLE_VGA and SURF_VGA were in fact a joke. I wanted
 to see, how good the combination of  Turbo-C-BGI-Code with BCC2GRX-GRX-VGALIB
 works. It was in fact easy, to make gle_vga compile and work with Linux. It
 was much easier, than making a 32-bit GLE work under DOS - compiled with D.J.
 delories port of GCC (and of course GRX + BCC2GRX)!
 I recently did that, too. I you are compelled to use DOS under some
 circumstances, you may use now a 32-bit version of GLE under DOS!
 No more memory restrictions, GCC-compiled and therefore faster than any
 Borland stuff.



			Announce
			--------

 You can get GLE 3.3 gb for MSDOS 'GLE 32' from tui.marc.cri.nz.

	directory: /pub/gle/gle32


 There is a multitude of drivers included in this package, that support
 high resolution and high refresh modes.


 I made another port of GLE to OS/2. It's full 32bit, too.

			Announce
			--------

 You can get GLE 3.3 gb for OS/2  from tui.marc.cri.nz.

	directory: /pub/gle/os2


 Have fun,
		Axel Rohde
		(rohde@physik.uni-kiel.d400.de)
