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gifcompose(1) [debian man page]

gifcompose(1)						      General Commands Manual						     gifcompose(1)

NAME

       gifcompose - The gifcompose program uses the GIFLIB utility tools to support a minilanguage for describing GIF pasteup sequences.

USAGE

       gifcompose [-v] <specfile

Specification Syntax
       The gifcompose tool takes a series of text lines and interprets them as commands to do pasteup operations. The commands are:

Generators
       gif <name>

	      Paste in <name>.gif

       raw <name> <width> <height>

	      Paste  in  the given raw-format file (no suffix supplied).  Raw format is a stream of 8-bit indices into the EGA color map.  Accord-
	      ingly, the width and height must be specified, and the source must be exactly width times height bytes long.

       rgb <name> <width> <height>

	      Paste in the given RGB-format file (no suffix supplied).	Raw format is a stream of 24-bit color values.	Accordingly, the width and
	      height must be specified, and the source must be exactly 3 times width times height bytes long.

       rle <name>

	      Paste in the given RLE-format file (no suffix supplied).	This converts the Utah Raster Kit format to GIF.

       text <text> [foreground <index>] [color <r> <g> <b>]

	      Copy  8x8 monospace font, with transparent background and index 1 as foreground.	If the text string contains whitespaces, they must
	      be escaped or the string must be quoted (shell conventions).

	      The optional suffix `foreground <n>' sets the foreground color index.  The optional suffix `color <r> <g> <b>' sets the RGB color to
	      be used for the foreground index.

	      Each generator operation may be followed by any combination of the following suffixes:

Modifiers
       at <x> <y>

	      Place the image at the given (upper-left-hand-corner) coordinates in the pasted-up result.

       clip <name> <top-x> <top-y> <bottom-x> <bottom-y>

	      Clip image using the given rectange, paste it onto.

       xflip

	      Flip the image around the X axis before placing it.

       yflip

	      Flip the image around the Y axis before placing it.

       left

	      Rotate the image 90 degrees counterclockwise before placing it.

       right

	      Rotate the image 90 degrees clockwise before placing it.

Target Operations
       screen size <x-size> <y-size>

	      Set the global screen size of the final image.

       screen position <x> <y>

	      Set the global screen position of the final image.

Comments
       Comments or comment lines may be preceded with `#' and will be ignored.

MEMORY REQUIRED

       Proportional to the size of the largest pasted image.

OPTIONS

       [-v]

	       Emit a report on each composition action to stderr as it happens.

BUGS

       The suffix sequence `left left' sometimes mysteriously fails to work, probably due to some restriction in <a href="gifflip.html">gifflip

       No support for resizing or odd-angle rotations yet.

       The `color' suffix of text is a no-op, because the present version of <a href="gifovly.html">gifovly

       Error checking is rudimentary.

AUTHOR

       Eric S. Raymond <esr@snark.thyrsus.com>

       Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric S. Raymond <esr@thyrsus.com>

								   giflib-tools 						     gifcompose(1)

Check Out this Related Man Page

gif2bgi(1)						      General Commands Manual							gif2bgi(1)

NAME

       gif2epsn - A program to dump images saved as GIF files on Epson type printers.

USAGE

       gif2epsn [-q] [-d dither] [-t bw] [-m map] [-i] [-n] [-p printer] [-h] gif-file

       If no gif-file is given, Gif2Epsn will try to read a GIF file from stdin.

MEMORY REQUIRED

       Screen.

OPTIONS

       [-q]

	       Quiet mode.  Default off on MSDOS, on under UNIX. Controls printout of running scan lines. Use -q- to invert.

       [-d dither]

	       Sets  size  of  dithering  matrix,  where DitherSize can be 2,3 or 4 only (for 2x2, 3x3 and 4x4 dithering matrices).  Default is 2.
	      Note image will be displayed in this mode only if the mapping option (see -m) selected this mode.

       [-t bw]

	       Sets threshold level for B&W mapping in percent.  This threshold level is used in  the  different  mappings  as	selected  via  -m.
	      Default is 19%.

       [-m map]

	       Select method to map colors to B&W.  Mapping can be:

       0

	      Every none background color is considered foreground (white color but is drawn as black by printer, unless -i is specified).

       1

	      If 0.3 * RED  0.59 * GREEN  0.11 * YELLOW > BW the pixel is considered white color.

       2

	      Colors are mapped as in 1, and use dithering of size as defined using -d option.	BWthreshold is used here as scaler.

	      The default is option 0.

       [-i]

	       Invert the image, i.e.  black -> white, white -> black.

       [-n]

	       Nicer  image.   Uses  double-density  feature  of Epson printer.  This takes more time (and kills your ink cartridge faster...) but
	      results are usually better.

       [-p printer]

	       Under Unix, output goes to stdout by default; under DOS, the default is LPT1:.  With this switch you can specify the output target.

       [-h]

	       print one line of command line help, similar to Usage above.

NOTES

       The output has an aspect ratio of 1, so a square image will be square in hardcopy as well.

       The widest image can be printed is 640 pixels, on 8 inch paper.	You probably will need to flip wider images, if height is less than  that:
       `<a href="gifflip.html">gifflip -r x29.gif | gif2epsn'.	Wider images will be clipped.

AUTHOR

       Gershon Elber

       Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric S. Raymond <esr@thyrsus.com>

								   giflib-tools 							gif2bgi(1)
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