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NAME
     webcollage - decorate the screen with random images from the
     web

SYNOPSIS
     webcollage [-display host:display.screen] [-root] [-verbose]
     [-delay secs] [-timeout secs] [-background bg] [-filter com-
     mand] [-filter2 command] [-http-proxy host[:port]]

DESCRIPTION
     The webcollage program pulls random image off of  the  World
     Wide  Web  and scatters them on the root window.  One satis-
     fied customer described it as "a nonstop pop culture  brain-
     bath."   This  program  finds its images by doing random web
     searches, and extracting images from the returned pages.  It
     places  the  images  on  the  root  window by using the gif-
     topnm(1), djpeg(1),  and  xli(1),  xv(1),  or  xloadimage(1)
     tools.

     webcollage is written in perl(1) and requires Perl 5.

OPTIONS
     webcollage accepts the following options:

     -root   Draw on the root window.  This option is  manditory:
             drawing  to  a  window other than the root window is
             not yet supported.

     -verbose or -v
             Print diagnostics to stderr.  Multiple  -v  switches
             increase  the  amount  of output.  -v will print out
             only the URLs of the images; -vv will print all  the
             commands  being  run;  and -vvv will print more than
             you care about.

     -delay seconds
             How long to sleep between images.  Default 1 second.
             (Remember that this program probably spends a lot of
             time waiting for the network.)

     -background color-or-ppm
             What to use for the background onto which images are
             pasted.  This may be a color name, a hexadecimal RGB
             specification in the form '#rrggbb', or the name  of
             a PPM file.

     -timeout seconds
             How long to wait for a URL to complete before giving
             up  on it and moving on to the next one.  Default 30
             seconds.

     -filter command
             Filter all source images through this command.   The
             command  must  take a PPM file on stdin, and write a
             new PPM file to  stdout.   One  good  choice  for  a
             filter would be:

                  webcollage -root -filter 'vidwhacker -stdin -stdout'


     -filter2 command
             Filter the composite  image  through  this  command.
             The  -filter  option  applies to the sub-images; the
             -filter2 applies to the final, full-screen image.

     -http-proxy host:port
             If you must go through a proxy  to  connect  to  the
             web,  you  can  specify it with this option, or with
             the $http_proxy  or  $HTTP_PROXY  environment  vari-
             ables.

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.

     http_proxy or HTTP_PROXY
             to get the default HTTP proxy host and port.

FILES AND URLS
     /usr/dict/words or /usr/share/lib/dict/words
          To find the random words to feed to search engines.

     http://random.yahoo.com/bin/ryl, http://image.altavista.com/
     To find random web pages.

BUGS
     When drawing on the root window, it always uses the  default
     colormap.  This is actually a limitation of xv.  But regard-
     less, when using this program with xscreensaver, it must  be
     given  the  default-n visual specification (see the xscreen-
     saver(1) manual for more details.)

     Only the GIF and JPEG image formats are supported.

     Transparent and animating GIFs are not supported.

     It's slow.

     Too many of the images that it finds are text, not pictures.
     This  is because most of the web is pictures of text.  Which
     is pretty sad.

SEE ALSO
     X(1),   xscreensaver(1),   xli(1),   xv(1),   xloadimage(1),
     ppmmake(1), giftopnm(1), pnmpaste(1), pnmscale(1), djpeg(1),
     cjpeg(1), xdpyinfo(1), perl(1), vidwhacker(1), dadadodo(1)

COPYRIGHT
     Copyright O 1998, 1999 by  Jamie  Zawinski.   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  permis-
     sion   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.

AUTHOR
     Jamie Zawinski <[email protected]>, 24-May-98.

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