.\" This man page was generated by the Netpbm tool 'makeman' from HTML source. Pamgradient User Manual - Online Linux Manual PageSection : 0
Updated : 21 October 2005
Source : netpbm documentation
NAMEpamgradient - create a four-corner gradient PAM image .UN synopsis
SYNOPSISpamgradient [-maxval=maxval] color-tl color-tr color-bl color-br width height Minimum unique abbreviation of option is acceptable. You may use double hyphens instead of single hyphen to denote options. You may use white space in place of the equals sign to separate an option name from its value. .UN description
DESCRIPTIONThis program is part of Netpbm(1)​. pamgradient creates an image of the specified dimensions width by height which contains a smooth, two-dimensional gradient between the specified colors of the four corners (from top left to bottom right). Specify the colors as described for the argument of the pnm_parsecolor() library routine ​. If all four colors are gray values, pamgradient creates a grayscale image (PAM tuple type GRAYSCALE). Otherwise, it creates a color image (PAM tuple type RGB). .UN options
OPTIONSIn addition to the options common to all programs based on libnetpbm (most notably -quiet, see
 Common Options ​), pamgradient recognizes the following command line option: -maxval=maxval  maxval of the generated image. (See "PAM(1)​ and PNM(1)​ specifications). .UN seealso
SEE ALSOpamgradient(1)​, ppmmake(1)​, ppmrainbow(1)​, pgmramp(1)​, ppmpat(1)​, "pam(1)​, "pnm(1)​ .UN note
NOTEOnly the top left corner of the generated image has exactly the specified color. The color of the top right corner is a bit shifted to the left, the bottom left corner a bit up, and the bottom right corner left and up. This ensures nice transitions when combining adjacent (very narrow) gradients, and doesn't play a role when the gradient butts against a solid surface. This effect is created by the integer arithmetic used for the interpolation of the color values, and since it doesn't make a difference for all practical purposes I might as well sell it as a feature. .UN history
HISTORYpamgradient was new in Netpbm 10.31 (December 2005). .UN author
AUTHORpamgradient was written by Daniel Haude in October 2005.
DOCUMENT SOURCEThis manual page was generated by the Netpbm tool 'makeman' from HTML source. The master documentation is at http://netpbm.sourceforge.net/doc/pamgradient.html 0
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