euler2d - two dimensional incompressible inviscid fluid flow.

       Stephen Montgomery-Smith.

X Version 11                                   6.08 (10-Oct-2023)                                    euler2d(6x)

       Copyright © 2002 by Stephen Montgomery-Smith.  Permission to use, copy, modify, distribute, and sell this
       software and its documentation for any purpose 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 representations are made about the suitability of  this  software
       for any purpose.  It is provided "as is" without express or implied warranty.

       Simulates two dimensional incompressible inviscid fluid flow.

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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

       euler2d - two dimensional incompressible inviscid fluid flow.

--visualvisual
               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.

       --window
               Draw on a newly-created window.  This is the default.

       --root  Draw on the root window.

       --window-idnumber
               Draw on the specified window.

       --countnumber
               Particles.  2 - 5000.  Default: 1024.

       --eulertailnumber
               Trail Length.  2 - 500.  Default: 10.

       --cyclesnumber
               Duration.  100 - 5000.   Default: 3000.

       --ncolorsnumber
               Number of Colors.  Default: 64.

       --delaynumber
               Per-frame delay, in microseconds.  Default: 10000 (0.01 seconds.).

       --fps   Display the current frame rate and CPU load.

X(1), xscreensaver(1)

euler2d  [--display  host:display.screen]  [--visual  visual]  [--window]  [--root]  [--window-id number]
       [--count number] [--eulertail number] [--cycles number] [--ncolors number] [--delay number] [--fps]