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RedHat 9 (Linux i386) - man page for sldtoppm (redhat section 1)

sldtoppm(1)			     General Commands Manual			      sldtoppm(1)

NAME
       sldtoppm - convert an AutoCAD slide file into a portable pixmap

SYNOPSIS
       sldtoppm [-adjust] [-dir] [-height|-ysize s] [-info] [-lib|-Lib name] [-scale s] [-ver-
	      bose] [-width|-xsize s] [slidefile]

DESCRIPTION
       Reads an AutoCAD(R) slide file and outputs a portable pixmap.  If no slidefile  is  speci-
       fied,  input is read from standard input.  The ppmdraw library is used to convert the vec-
       tor and polygon information in the slide file to a pixmap;  see	the  file  ppmdraw.h  for
       details on this package.

OPTIONS
       -adjust
	      If  the display on which the slide file was created had non-square pixels, when the
	      slide is processed with sldtoppm and the -adjust option is not present, the follow-
	      ing warning will appear:
		Warning - pixels on source screen were non-square.
		Specifying -adjust will correct image width to compensate.
	      Specifying  the  -adjust	option causes sldtoppm to scale the width of the image so
	      that pixels in the resulting portable pixmap are square (and hence  circles  appear
	      as  true	circles,  not  ellipses).  The scaling is performed in the vector domain,
	      before scan converting the  objects.   The  results  are,  therefore,  superior  in
	      appearance  to  what  you'd  obtain were you to perform the equivalent scaling with
	      pnmscale after the bitmap had been created.

       -dir   The input is assumed to be an AutoCAD slide library file.  A directory listing each
	      slide in the library is printed on standard error.

       -height size
	      Scales the image in the vector domain so it is size pixels in height.  If no -width
	      or -xsize option is specified, the width will be adjusted  to  preserve  the  pixel
	      aspect ratio.

       -info  Dump  the  slide file header on standard error, displaying the original screen size
	      and aspect ratio among other information.

       -lib name
	      Extracts the slide with the given name from the slide library given as input.   The
	      specified name is converted to upper case.

       -Lib name
	      Extracts	the slide with the given name from the slide library given as input.  The
	      name is used exactly as specified; it is not converted to upper case.

       -scale s
	      Scales the image by factor s, which may be any floating point  value  greater  than
	      zero.   Scaling  is  done  after aspect ratio adjustment, if any.  Since scaling is
	      performed in the vector domain, before rasterisation, the results look much  better
	      than running the output of sldtoppm through pnmscale.

       -verbose
	      Dumps the slide file header and lists every vector and polygon in the file on stan-
	      dard error.

       -width size
	      Scales the image in the vector domain so it is size pixels wide.	If no -height  or
	      -ysize  option  is  specified,  the  height  will be adjusted to preserve the pixel
	      aspect ratio.

       -xsize size
	      Scales the image in the vector domain so it is size pixels wide.	If no -height  or
	      -ysize  option  is  specified,  the  height  will be adjusted to preserve the pixel
	      aspect ratio.

       -ysize size
	      Scales the image in the vector domain so it is size pixels in height.  If no -width
	      or  -xsize  option  is  specified, the width will be adjusted to preserve the pixel
	      aspect ratio.

       All flags can be abbreviated to their shortest unique prefix.

BUGS
       Only Level 2 slides are converted.  Level 1 format has been obsolete since the  advent  of
       AutoCAD Release 9 in 1987, and was not portable across machine architectures.

       Slide  library items with names containing 8 bit (such as ISO) or 16 bit (Kanji, for exam-
       ple) characters may not be found when chosen with the -lib option unless sldtoppm has been
       built  with  character set conversion functions appropriate to the locale.  You can always
       retrieve slides from libraries regardless of the character set by using	the  -Lib  option
       and specifying the precise name of library member.  Use the -dir option to list the slides
       in a library if you're unsure of the exact name.

SEE ALSO
       AutoCAD Reference Manual: Slide File Format, pnmscale(1), ppm(5)

AUTHOR
	    John Walker
	    Autodesk SA
	    Avenue des Champs-Montants 14b
	    CH-2074 MARIN
	    Suisse/Schweiz/Svizzera/Svizra/Switzerland
	    Usenet:  kelvin@Autodesk.com
	    Fax:     038/33 88 15
	    Voice:   038/33 76 33

       Permission to use, copy, modify, and distribute this software and  its  documentation  for
       any  purpose  and  without  fee is hereby granted, without any conditions or restrictions.
       This software is provided ``as is'' without express or implied warranty.

       AutoCAD and Autodesk are registered trademarks of Autodesk, Inc.

					 10 October 1991			      sldtoppm(1)


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