DragonFly On-Line Manual Pages

Search: Section:  

PS_EVOL(1)            User Contributed Perl Documentation           PS_EVOL(1)


NAME

       ps_evol - Perl script to fine-tune A4 PostScript drawings


SYNOPSIS

        vi plant.ps
        ps_evol plant.ps > p2.ps


DESCRIPTION

       ps_evol is mainly intended as a demo script illustrating the text_evol
       funtion in Math::Evol.pm.  It assumes you have something like GhostView
       which allows you to view PostScript files.

       It creates a temporary PostScript file, then repeatedly generates eight
       variants of the original file, scales them smaller, numbers them, and
       displays them in a 3x3 array.  The original is in the middle, as number
       5.  It asks the user which variant they prefer, then uses that as the
       original for the next iteration.  When the user decides to call a halt,
       the latest preferred variant is written to the standard output.

       The parameters to be varied in the PostScript file must be marked out
       by special comments, such as

        /gray_sky .87 def % evol step 0.05 min 0.0 max 1.0

       See perldoc Math::Evol for more details, and as an example the
       PostScript file plant.ps, included with the distribution.

       Version 1.05, #COMMENT#


DEPENDENCIES

       Uses the CPAN module Term::Clui.pm to dialogue with the user.


AUTHOR

       Peter J Billam, www.pjb.com.au/comp/contact.html


CREDITS

       Based on Math::Evol.pm, and conceptually on Richard Dawkin's Blind
       Watchmaker software.


SEE ALSO

       Math::Evol.pm, Term::Clui.pm, http://www.pjb.com.au/, perl(1).

perl v5.20.2                      2005-01-21                        PS_EVOL(1)

Search: Section: