NAME

       cfdg - image generator based on context-free grammars

SYNOPSIS

       cfdg [options] input.cfdg [output.png/svg]

DESCRIPTION

       Context  Free  is a system that produces images based on context-free grammars.  cfdg is the command-line
       program to generate the actual images (in PNG or SVG format) from the input.cfdg  file  containing  these
       grammars.   If  -  is  specified  instead of an input file, the grammar is read from standard input.  The
       output filename can be left out if the -o option is used.  Note that the output mode (PNG or SVG) is  not
       detected depending on the specified extension, but must be explicitly set using the -V option.

OPTIONS

       All  command-line  options  consist  of  a single letter, and an optional argument.  A summary of options
       supported by cfdg is included below.

       -w width
              Set width of the output image in pixels (for PNG) or millimeters (for SVG) (default: 500).

       -h height
              Set height of the output image in pixels (for PNG) or millimeters (for SVG) (default: 500).

       -s size
              Set both width and height of the output image in pixels (for PNG) or millimeters (for SVG) to  the
              same value.

       -s widthxheight
              Set both width and height of the output image in pixels (for PNG) or millimeters (for SVG).

       -T size
              Multiply both width and height of the tiled output image by the same amount.

       -T widthxheight
              Multiply both width and height of the tiled output image by the given amounts.

       -m maximum shapes amount
              Set the maximum number of shapes rendered (default: no maximum).

       -x minimum shape size
              Set the minimum size for a shape to be rendered in pixels/mm (default: 0.3).

       -b border size
              Set  the border size: -1 for a -8 pixel border, 0 for no border, 1 for an 8 pixel border, or 2 for
              a variable-sized border.

       -v variation code
              Set the variation code (default: random).  This code determines what the  final  image  will  look
              like when the input contains non-deterministic rules.

       -o filename
              Set the output filename.  In this filename, %f is replaced by the animation frame number (if any),
              %v and %V are replaced by the variation code (in lower or upper case,  respectively),  and  %%  is
              replaced by a literal %.

       -a num Generate num animation frames at 15 fps (only possible using PNG output).

       -a timexfps
              Generate time x fps animation frames at the specified fps (only possible using PNG output).

       -z     Zoom out during animation, when producing an animation using -a.

       -V     Generate SVG (vector) output.

       -Q     Generate Quicktime movie output (not available in this Debian package).

       -c     Crop image output.

       -q     Quiet mode; suppress non-error output.

       -C     Check the syntax of the cfdg file, then exit.

       -t     Time output; output the time taken to render the cfdg file.

       -?     Show summary of options.

SEE ALSO

       More information can be found on the Context Free website, at http://contextfreeart.org/.

AUTHOR

       Context Free was written by Chris Coyne, John Horigan and Mark Lentczner.

       This  manual page was written by Bram Senders <bram@luon.net>, for the Debian project (but may be used by
       others).