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pnmpaste
!!!pnmpaste
NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
AUTHOR
----
!!NAME


pnmpaste - paste a rectangle into a portable anymap
!!SYNOPSIS


__pnmpaste__ [[__-replace__|__-or__|__-and__
|__-xor__] ''frompnmfile x y''
[[''intopnmfile'']
!!DESCRIPTION


Reads two portable anymaps as input. Inserts the first
anymap into the second at the specified location, and
produces a portable anymap the same size as the second as
output. If the second anymap is not specified, it is read
from stdin. The ''x'' and ''y'' can be negative, in
which case they are interpreted relative to the right and
bottom of the anymap, respectively.


This tool is most useful in combination with ''pnmcut''.
For instance, if you want to edit a small segment of a large
image, and your image editor cannot edit the large image,
you can cut out the segment you are interested in, edit it,
and then paste it back in.


Another useful companion tool is
''pbmmask''.


__pnmcomp__ is, a more general tool, except that it lacks
the
__pnmcomp__ allows you to specify an alpha
mask in order to have only part of the inserted image get
inserted. So the inserted pixels need not be a rectangle.
You can also have the inserted image be translucent, so the
resulting image is a mixture of the inserted image and the
base image.


The optional flag specifies the operation to use when doing
the paste. The default is __-replace__. The other,
logical operations are only allowed if both input images are
bitmaps. These operations act as if white is TRUE and black
is FALSE.


All flags can be abbreviated to their shortest unique
prefix.
!!SEE ALSO


pnmcomp(1), pnmcut(1), pnminvert(1),
pnmarith(1), pbmmask(1),
pnm(5)
!!AUTHOR


Copyright (C) 1989, 1991 by Jef Poskanzer.
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Last edited on Tuesday, June 4, 2002 12:22:43 am by "perry"

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