Ubuntu Feisty 7.04 manual page repository

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Provided by: xscreensaver-gl_4.24-5ubuntu2_i386

NAME

        queens - n queens screensaver
 

SYNOPSIS

        queens  [-display  host:display.screen]  [-window]  [-root]  [-install]
        [-visual visual] [-delay microseconds] [-wireframe] [-fps]
 

DESCRIPTION

        The queens program solves the n-queens problem (where, in this program,
        N  is  between  5  and  10 queens) using a straightforward backtracking
        algorithm.  The problem is: how may one place N queens on an NxN chess‐
        board such that no queen can attack a sister?
 

OPTIONS

        queens accepts the following options:
 
        -window Draw on a newly-created window.  This is the default.
 
        -root   Draw on the root window.
 
        -install
                Install a private colormap for the window.
 
        -visual visual
                Specify  which  visual  to use.  Legal values are the name of a
                visual class, or the id number (decimal or hex) of  a  specific
                visual.
 
        -wireframe
                Render  in  wireframe instead of solid.  -fps Display a running
                tally of how many frames per second  are  being  rendered.   In
                conjunction  with  -delay  0, this can be a useful benchmark of
                your GL performance.
 

ENVIRONMENT

        DISPLAY to get the default host and display number.
 
        XENVIRONMENT
                to get the name of a resource file that  overrides  the  global
                resources stored in the RESOURCE_MANAGER property.
 

BUGS

        It’s not unknown for this and other OpenGL hacks to fail under hardware
        accelaration (UtahGLX) and take the X server with them.  Texture images
        must be 16x16 or 32x32 or 64x64 etc.
xscreensaver-getimage(1)
 

COPYRIGHT

        Copyright  ©  2002 by Blair Tennessy.  Permission to use, copy, modify,
        distribute, and sell this software and its documentation for  any  pur‐
        pose  is  hereby granted without fee, provided that the above copyright
        notice appear in all copies and that both  that  copyright  notice  and
        this  permission  notice appear in supporting documentation.  No repre‐
        sentations are made about the suitability of this software for any pur‐
        pose.  It is provided "as is" without express or implied warranty.
 

AUTHOR

        Blair Tennessy <tennessb@unbc.ca>, 20-April-2002.