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