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CONTEXTFREE(1) Context Free CONTEXTFREE(1) NAME cfdg - image generator based on context-free grammars SYNOPSIS cfdg [options] input.cfdg [output.png/svg/mov] DESCRIPTION Context Free is a system that produces images based on context-free gram- mars. cfdg is the command-line program to generate the actual images (in PNG or SVG format) from the input.cfdg file containing these grammars. Cfdg files can also be animated. The output can either be PNG files of in- dividual frames or as a QuickTime .mov file. If - is specified instead of an input file, the grammar is read from standard input. The output file- name can be left out if the -o/--outputtemplate option or -C/--check option is used. If the --display option is specified and there is no output file then the output is saved in a temporary file. Note that the output mode (PNG, SVG, or MOV) is not detected depending on the specified extension, but must be explicitly set using the -V/--svg or -Q/--quicktime option. OPTIONS All command-line options consist of a single letter, and an optional argu- ment. Longer "GNU-style" options exist as well. A summary of options sup- ported by cfdg is included below. -w WIDTH, --width=WIDTH Set width of the output image in pixels (for PNG) or millimeters (for SVG) (default: 500). -h HEIGHT, --height=HEIGHT Set height of the output image in pixels (for PNG) or millimeters (for SVG) (default: 500). -s SIZE, --size=SIZE Set both width and height of the output image in pixels (for PNG) or millimeters (for SVG) to the same value. -s WIDTHxHEIGHT, --size=WIDTHxHEIGHT Set both width and height of the output image in pixels (for PNG) or millimeters (for SVG). -T SIZE, --tile=SIZE Multiply both width and height of the tiled output image by the same amount. -T WIDTHxHEIGHT, --tile=WIDTHxHEIGHT Multiply both width and height of the tiled output image by the given amounts. -m MAXSHAPES, --maxshapes=MAXSHAPES Set the maximum number of shapes rendered (default: no maximum). -x MINIMUMSIZE, --minimumsize=MINIMUMSIZE Set the minimum size for a shape to be rendered in pixels/mm (de- fault: 0.3). -b BORDERSIZE, --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=VARIATION Set the variation code (default: random). This code determines what the final image will look like when the input contains non-determin- istic rules. -DNAME=VALUE Declare a variable, configuration, or function. Any declaration that can be made at global scope can be entered at the command line with this option. Command line declarations override any global-scope de- clarations in the cfdg file with the same name. Note that function declarations require a space-delimited type identifier in front, so quotes would be required to force the shell to group the function declaration parts as one entity. -o NAMETEMPLATE, --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 vari- ation code (in lower or upper case, respectively), and %% is re- placed by a literal %. -a NUM, --animate=NUM Generate NUM animation frames at 15 fps. -a TIMExFPS, --animate=TIMExFPS Generate TIME x FPS animation frames at the specified fps. -f FRAME, --frame=FRAME Generate animation FRAME only. -z, --zoom Zoom out during animation, when producing an animation using -a. -V, --svg Generate SVG (vector) output. -Q, --quicktime Generate Quicktime movie output. --prores Generate Quicktime movie output using the ProRes codec instead of the H.264 codec. --display=DISPLAY EXECUTABLE Display output with specified program. -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 files. -P, --paramdebug Enable debug mode to test if all parameter blocks are deallocated. -?, --help Show summary of options. SEE ALSO More information can be found on the Context Free website, at https://www.contextfreeart.org/index.html 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 De- bian project (but may be used by others). 3.3.1 2020-04-04 CONTEXTFREE(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR
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