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/--svg
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=WIDTH
- Set width of the output image in pixels (for PNG) or millimeters (for SVG)
(default: 500).
- -h, --height=HEIGHT
- Set height of the output image in pixels (for PNG) or millimeters (for
SVG) (default: 500).
- -s, --size=SIZE
- Set both width and height of the output image in pixels (for PNG) or
millimeters (for SVG) to the same value.
- -s, --size=WIDTHxHEIGHT
- Set both width and height of the output image in pixels (for PNG) or
millimeters (for SVG).
- -T, --tile=SIZE
- Multiply both width and height of the tiled output image by the same
amount.
- -T, --tile=WIDTHxHEIGHT
- Multiply both width and height of the tiled output image by the given
amounts.
- -m, --maxshapes=MAXSHAPES
- Set the maximum number of shapes rendered (default: no maximum).
- -x, --minimumsize=MINIMUMSIZE
- Set the minimum size for a shape to be rendered in pixels/mm (default:
0.3).
- -b, --bordersize=BORDERSIZE
- 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=VARIATION
- Set the variation code (default: random). This code determines what the
final image will look like when the input contains non-deterministic
rules.
- -o, --outputtemplate=NAMETEMPLATE
- 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, --animate=NUM
- Generate NUM animation frames at 15 fps (only possible using PNG
output).
- -a, --animate=TIMExFPS
- Generate TIME x FPS animation frames at the specified fps
(only possible using PNG output).
- -f, --frame=FRAME
- Generate animation FRAME only (only possible using PNG
output).
- -z, --zoom
- Zoom out during animation, when producing an animation using
-a.
- -V, --svg
- Generate SVG (vector) output.
- -Q, --quicktime
- Generate Quicktime movie output (not available in this Debian
package).
- --prores
- Generate Quicktime movie output using the ProRes codec instead of the
H.264 codec (not available in this Debian package).
- -c, --crop
- Crop image output.
- -q, --quiet
- Quiet mode; suppress non-error output.
- -C, --check
- Check the syntax of the cfdg file, then exit.
- -t, --time
- Time output; output the time taken to render the cfdg file.
- -d, --cleanup
- Delete old temporary file.
- -P, --paramdebug
- Enable debug mode to test if all parameter blocks are deallocated.
- -?, --help
- Show summary of options.
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).
