ppmrainbow(1) [redhat man page]

ppmrainbow(1)						      General Commands Manual						     ppmrainbow(1)

NAME

       ppmrainbow - Generate a rainbow

SYNOPSIS

       ppmrainbow [-width=number] [-height=number]
       [-tmpdir=directory] [-verbose] color ...

       All  options  can  be abbreviated to their shortest unique prefix.  You may use two hyphens instead of one to designate an option.  You may
       use either white space or equals signs between an option name and its value.

DESCRIPTION

       ppmrainbow generates a PPM image that fades from one color to another to another from left to right, like a rainbow.  The colors are  those
       you specify on the command line, in that order.	The first color is added again on the right end of the image.

       If you want a vertical or other non-horizontal rainbow, run the output through pnmrotate.

       One  use  for  such  a rainbow is to compose it with another image under an alpha mask in order to add a rainbow area to another image.	In
       fact, you can make rainbow-colored text by using pbmtext, pnmcomp, and ppmrainbow.

OPTIONS

       -width number
	      The width in pixels of the output image.

	      Default is 600.

       -height number
	      The height in pixels of the output image.

	      Default is 8.

       -tmpdir
	      The directory specification of the directory ppmrainbow is to use for temporary files.

	      Default is the value of the TMPDIR environment variable, or /tmp if TMPDIR is not set.

       -verbose
	      Print the "commands" (invocations of other Netpbm programs) that ppmrainbow uses to create the image.

SEE ALSO

       ppmmake(1), pnmcomp(1), pbmtext(1), ppmfade(1), ppm(5).

AUTHOR

       Arjen Bax wrote ppmrainbow in June 2001 and contributed it to the Netpbm package.  Bryan Henderson wrote this man page in July 2001.

								    1 July 2001 						     ppmrainbow(1)

pamdice(1)                                                    General Commands Manual                                                   pamdice(1)

NAME

       pamdice - slice a Netpbm image into many horizontally and/or vertically

SYNOPSIS

       pamslice -outstem=filenamestem [-width=width] [-height=height] [-verbose] [filename]

       You  can use the minimum unique abbreviation of the options.  You can use two hyphens instead of one.  You can separate an option name from
       its value with white space instead of an equals sign.

DESCRIPTION

       Reads a PAM, PBM, PGM, or PPM image as input.  Splits it horizontally and/or vertically into equal size pieces and writes them  into  sepa-
       rate files as the same kind of image.

       See the -outstem option for information on naming of the output files.

       The -width and -height options determine the size of the output pieces.

       pnmcat can rejoin the images.

OPTIONS

       -outstem=filenamestem
              This  option  determines  the  names of the output files.  Each output file is named filenamestem_y_x.type where filenamestem is the
              value of the -outstem option, x and y are the horizontal and vertical locations, respectively, in the  input  image  of  the  output
              image, zero being the leftmost and top, and type is .pbm, .pgm, .ppm, or .pam, depending on the type of image.

       -width=width
              gives  the width in pixels of the output images.  The rightmost pieces are smaller than this if the input image is not a multiple of
              width pixels wide.

       -height=height
              gives the height in pixels of the output images.  The bottom pieces are smaller than this if the input image is not  a  multiple  of
              height pixels high.

       -verbose
              Print information about the processing to Standard Error.

SEE ALSO

       pamcut(1), pnmcat(1), pgmslice(1), pnm(5)

AUTHOR

       put by Bryan Henderson in the public domain in 2001

                                                                  31 January 2001                                                       pamdice(1)