pixtile — paste small images together into one large image
pixtile [-s squareinsize] [-w file_width] [-n file_height] [-S squareoutsize] [-W out_width] [-N out_height] [-o startframe] basename > file.pix
pixtile [-s squareinsize] [-w file_width] [-n file_height] [-S squareoutsize] [-W out_width] [-N out_height] file1 file2... fileN > file.pix
pixtile takes a collection of numbered small images and places them side by side in one larger image. The input and output files are assumed to be in pix(5) format. By default, the output file will be made 512x512 pixels in size.
The input files have a default width of 64 pixels per scanline
and are usually square, i.e. have the same height as width.
Specifying the
-s
flag changes the default size to
squareinsize
pixels per scanline and
squareinsize
scanlines as given in the argument list.
The
-w
flag can be used to specify the input file width in pixels and the
-n
flag can be used to specify the input file height in scanlines.
If the
-S
flag is supplied, the output
size is changed from the default value of 512 to
squareoutsize
pixels per scanline and
squareoutsize
scanlines.
The
-W
flag sets the output width size to
out_width
pixels per scanline.
Similarly, the
-N
flag sets the output height size to
out_height
scanlines.
-s squareinsizeSpecify both the number of pixels per scanline and the number of scanlines in the input files. The default is 64.
-w file_widthSpecify the width (in pixels) per scanline of the input file. The default is 64.
-n file_heightSpecify the number of scanlines to be read from the input file. The default is 64.
-S squareoutsizeSpecify both the number of pixels per scanline (width) and the number of scanlines (height) for the output file. The default is 512.
-W out_widthSpecify the width (in pixels) per scanline of the output file. The default is 512.
-N out_heightSpecify the number of scanlines to be sent to the output file. The default is 512.
-o startframeSpecify the starting frame number, where startframe is substituted for num in basename.num.
The files being pasted together should have names of the form
basename.num,
where
basename
is given on the command line, and
num
is a consecutive series of integers. By default the first image
is assumed to be number " 0 ", but an alternate
startframe
can be given by using the
-o
flag and supplying
startframe.
The program keeps reading these small files until either the next
frame does not exist, or the output file is full.
They are placed in the output file from lower left to upper right.
The progress
of the composition is displayed on standard error.
If the basename is given as "-" (a minus sign), preceded by a "--" (two minus signs) to terminate bu_getopt(3) processing, then the stream of images is read from stdin rather than a file, such as might be generated by a program like pcd-pix(1). Such a stream could also be processed into files by pixbustup(1).
Alternatively, if more than one
basename
(filename) argument is supplied on the command line,
the names of the files being pasted together are assumed
to be explicitly stated and the
-o
flag is not valid. This allows files with different names to be
used without having to change those names.
This program is the companion of fbanim(1), which will step through these small images on a framebuffer capable of zooming and windowing. Thus many small low resolution frames can be used as an animation "preview" for a higher resolution sequence, the latter of which would go onto video tape or film.
pixtile -S 1024 -s 128 -o 2 anim > out.pix
will read files anim.2 through anim.65, placing them from lower left to upper right in a 1024x1024 pixel file out.pix.
pixtile -s 256 lowerleft lowerright upperleft upperright > out.pix
will read files lowerleft, lowerright, upperleft, and upperright, placing them from lower left to upper right in a 512x512 file out.pix.