pnmflip (1)
perform one or more flip operations on a portable anymap
SYNOPSIS
pnmflip
[ -leftright | -lr ]
[ -topbottom | -tb ]
[ -transpose | -xy ]
[ -rotate90 | -r90 | -ccw
]
[ -rotate270 | -r270 | -cw
]
[ -rotate180 | -r180 ]
[ pnmfile ]
DESCRIPTION
Reads a portable anymap as input.
Performs one or more flip operations, in the order specified, and
writes out a portable anymap.
rotation
reflection
transposition
OPTIONS
The flip operations available are: left for right
( -leftright
or
-lr );
top for bottom
( -topbottom
or
-tb );
and transposition
( -transpose
or
-xy ).
In addition, some canned concatenations are available:
-rotate90
or
-ccw
is equivalent to
-transpose
-topbottom ;
-rotate270
or
-cw
is equivalent to
-transpose
-leftright ;
and
-rotate180
is equivalent to
-leftright
-topbottom .
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
|
|
