Provided by: giflib-tools_4.1.6-9ubuntu1_amd64
gifcompose - The gifcompose program uses the GIFLIB utility tools to support a minilanguage for describing GIF pasteup sequences.
gifcompose [-v] <specfile
The gifcompose tool takes a series of text lines and interprets them as commands to do pasteup operations. The commands are:
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. Accordingly, 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:
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.
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 or comment lines may be preceded with `#' and will be ignored.
Proportional to the size of the largest pasted image.
[-v] Emit a report on each composition action to stderr as it happens.
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.
Eric S. Raymond <email@example.com> Man page created by T.Gridel <firstname.lastname@example.org>, originally written by Eric S. Raymond <email@example.com> giflib-tools gifcompose(1)