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<H1>pnmflip</H1>
Section: User Commands (1)<BR>Updated: 25 July 1989<BR><A HREF="#index">Index</A>
<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
pnmflip - perform one or more flip operations on a portable anymap
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<B>pnmflip</B>
[<B>-leftright</B>|<B>-lr</B>]
[<B>-topbottom</B>|<B>-tb</B>]
[<B>-transpose</B>|<B>-xy</B>]
[<B>-rotate90</B>|<B>-r90</B>|<B>-ccw</B>
]
[<B>-rotate270</B>|<B>-r270</B>|<B>-cw</B>
]
[<B>-rotate180</B>|<B>-r180</B>]
[<I>pnmfile</I>]
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
Reads a portable anymap as input.
Performs one or more flip operations, in the order specified, and
writes out a portable anymap.
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<A NAME="lbAE">&nbsp;</A>
<H2>OPTIONS</H2>
<P>
The flip operations available are: left for right
(<B>-leftright</B>
or
<B>-lr</B>);
top for bottom
(<B>-topbottom</B>
or
<B>-tb</B>);
and transposition
(<B>-transpose</B>
or
<B>-xy</B>).
In addition, some canned concatenations are available:
<B>-rotate90</B>
or
<B>-ccw</B>
is equivalent to
<B>-transpose</B>
<B>-topbottom</B>;
<B>-rotate270</B>
or
<B>-cw</B>
is equivalent to
<B>-transpose</B>
<B>-leftright</B>;
and
<B>-rotate180</B>
is equivalent to
<B>-leftright</B>
<B>-topbottom</B>.
<P>
All flags can be abbreviated to their shortest unique prefix.
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<H2>SEE ALSO</H2>
<A HREF="/cgi-bin/man/man2html?1+pnmrotate">pnmrotate</A>(1), <A HREF="/cgi-bin/man/man2html?5+pnm">pnm</A>(5)
<A NAME="lbAG">&nbsp;</A>
<H2>AUTHOR</H2>
Copyright (C) 1989 by Jef Poskanzer.
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT id="1"><A HREF="#lbAB">NAME</A><DD>
<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT id="4"><A HREF="#lbAE">OPTIONS</A><DD>
<DT id="5"><A HREF="#lbAF">SEE ALSO</A><DD>
<DT id="6"><A HREF="#lbAG">AUTHOR</A><DD>
</DL>
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