39 lines
642 B
Text
39 lines
642 B
Text
.TH ROTATE 1
|
|
.SH NAME
|
|
rotate - rotate or mirror a picture
|
|
.SH SYNOPSIS
|
|
.B rotate
|
|
[
|
|
.B -r
|
|
.I degree
|
|
] [
|
|
.B -u |
|
|
.B -l
|
|
] [
|
|
.I file
|
|
]
|
|
.SH DESCRIPTION
|
|
.I Rotate
|
|
reads its input image (default from standard input), applies the rotation
|
|
or mirroring and outputs the transformed image in compressed
|
|
plan9 bitmap format.
|
|
.PP
|
|
The option
|
|
.B -r
|
|
rotates the image clockwise in 90 degree steps by the
|
|
.I degree
|
|
argument.
|
|
The options
|
|
.B -u
|
|
and
|
|
.B -l
|
|
mirror the image upside/down or left/right.
|
|
.SH SOURCE
|
|
.B /sys/src/cmd/rotate.c
|
|
.SH "SEE ALSO
|
|
.IR crop (1),
|
|
.IR resample (1),
|
|
.IR image (6)
|
|
.SH HISTORY
|
|
.I Rotate
|
|
first appeared in 9front (September, 2011).
|