294 lines
6.3 KiB
HTML
294 lines
6.3 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of sldtoppm</TITLE>
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</HEAD><BODY>
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<H1>sldtoppm</H1>
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Section: User Commands (1)<BR>Updated: 10 October 1991<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="ixAAB"></A>
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<A NAME="ixAAC"></A>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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sldtoppm - convert an AutoCAD slide file into a portable pixmap
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>sldtoppm</B>
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[<B>-adjust</B>]
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[<B>-dir</B>]
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[<B>-height</B>|<B>-ysize</B>
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<I>s</I>]
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[<B>-info</B>]
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[<B>-lib</B>|<B>-Lib</B>
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<I>name</I>]
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[<B>-scale</B>
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<I>s</I>]
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[<B>-verbose</B>]
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[<B>-width</B>|<B>-xsize</B>
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<I>s</I>]
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[<I>slidefile</I>]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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Reads an AutoCAD® slide file and outputs a portable pixmap.
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If no
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<I>slidefile</I>
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is specified, input is read from standard input.
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The ppmdraw library is used to convert the vector and polygon
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information in the slide file to a pixmap; see the file ppmdraw.h for
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details on this package.
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-adjust</B>
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<DD>
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If the display on which the slide file was created had non-square
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pixels, when the slide is processed with
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<B>sldtoppm</B>
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and the
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<B>-adjust</B>
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option is not present, the following warning will appear:
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Warning - pixels on source screen were non-square.
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<BR>
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Specifying
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<B>-adjust</B>
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will correct image width to compensate.
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Specifying the
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<B>-adjust</B>
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option causes
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<B>sldtoppm</B>
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to scale the width of the image so that pixels in the resulting
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portable pixmap are square (and hence circles appear as true circles,
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not ellipses). The scaling is performed in the vector domain, before
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scan converting the objects. The results are, therefore, superior in
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appearance to what you'd obtain were you to perform the equivalent
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scaling with
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<B>pnmscale</B>
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after the bitmap had been created.
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<DT id="2"><B>-dir</B>
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<DD>
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The input is assumed to be an AutoCAD slide library file. A directory
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listing each slide in the library is printed on standard error.
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<DT id="3"><B>-height</B><I> size</I>
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<DD>
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Scales the image in the vector domain so it is
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<I>size</I>
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pixels in height. If no
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<B>-width</B>
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or
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<B>-xsize</B>
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option is specified, the width will be adjusted to preserve the
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pixel aspect ratio.
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<DT id="4"><B>-info</B>
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<DD>
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Dump the slide file header on standard error, displaying the original
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screen size and aspect ratio among other information.
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<DT id="5"><B>-lib</B><I> name</I>
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<DD>
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Extracts the slide with the given
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<I>name</I>
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from the slide library given as input. The specified
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<I>name</I>
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is converted to upper case.
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<DT id="6"><B>-Lib</B><I> name</I>
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<DD>
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Extracts the slide with the given
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<I>name</I>
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from the slide library given as input. The
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<I>name</I>
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is used exactly as specified; it is not converted to upper case.
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<DT id="7"><B>-scale</B><I> s</I>
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<DD>
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Scales the image by factor
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<I>s</I>,
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which may be any floating point value greater than zero. Scaling is
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done after aspect ratio adjustment, if any. Since scaling is
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performed in the vector domain, before rasterisation, the results look
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much better than running the output of
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<B>sldtoppm</B>
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through
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<B>pnmscale</B>.
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<DT id="8"><B>-verbose</B>
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<DD>
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Dumps the slide file header and lists every vector and polygon in the
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file on standard error.
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<DT id="9"><B>-width</B><I> size</I>
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<DD>
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Scales the image in the vector domain so it is
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<I>size</I>
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pixels wide. If no
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<B>-height</B>
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or
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<B>-ysize</B>
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option is specified, the height will be adjusted to preserve the
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pixel aspect ratio.
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<DT id="10"><B>-xsize</B><I> size</I>
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<DD>
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Scales the image in the vector domain so it is
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<I>size</I>
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pixels wide. If no
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<B>-height</B>
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or
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<B>-ysize</B>
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option is specified, the height will be adjusted to preserve the
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pixel aspect ratio.
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<DT id="11"><B>-ysize</B><I> size</I>
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<DD>
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Scales the image in the vector domain so it is
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<I>size</I>
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pixels in height. If no
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<B>-width</B>
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or
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<B>-xsize</B>
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option is specified, the width will be adjusted to preserve the
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pixel aspect ratio.
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</DL>
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<P>
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All flags can be abbreviated to their shortest unique prefix.
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<A NAME="lbAF"> </A>
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<H2>BUGS</H2>
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Only Level 2 slides are converted. Level 1 format has been obsolete
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since the advent of AutoCAD Release 9 in 1987, and was not portable
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across machine architectures.
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<P>
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Slide library items with names containing 8 bit (such as ISO) or 16
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bit (Kanji, for example) characters may not be found when chosen with the
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<B>-lib</B>
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option unless
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<B>sldtoppm</B>
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has been built with character set conversion functions appropriate to
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the locale. You can always retrieve slides from libraries regardless
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of the character set by using the
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<B>-Lib</B>
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option and specifying the precise name of library member. Use the
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<B>-dir</B>
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option to list the slides in a library if you're unsure of the
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exact name.
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<A NAME="lbAG"> </A>
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<H2>SEE ALSO</H2>
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AutoCAD Reference Manual:
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<I>Slide File Format</I>,
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<B><A HREF="/cgi-bin/man/man2html?1+pnmscale">pnmscale</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?5+ppm">ppm</A></B>(5)
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<A NAME="lbAH"> </A>
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<H2>AUTHOR</H2>
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<DL COMPACT><DT id="12"><DD>
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<PRE>
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John Walker
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Autodesk SA
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Avenue des Champs-Montants 14b
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CH-2074 MARIN
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Suisse/Schweiz/Svizzera/Svizra/Switzerland
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<DL COMPACT>
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<DT id="13">Usenet:<DD><A HREF="mailto:kelvin@Autodesk.com">kelvin@Autodesk.com</A>
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<DT id="14">Fax:<DD>038/33 88 15
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<DT id="15">Voice:<DD>038/33 76 33
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</PRE>
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</DL>
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</DL>
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<P>
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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without any conditions or restrictions. This software is provided ``as
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is'' without express or implied warranty.
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<P>
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AutoCAD and Autodesk are registered trademarks of Autodesk, Inc.
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="16"><A HREF="#lbAB">NAME</A><DD>
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<DT id="17"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="18"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="19"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="20"><A HREF="#lbAF">BUGS</A><DD>
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<DT id="21"><A HREF="#lbAG">SEE ALSO</A><DD>
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<DT id="22"><A HREF="#lbAH">AUTHOR</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:27 GMT, March 31, 2021
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