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- sldtoppm(1) AMIGA (10 October 1991) sldtoppm(1)
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- NAME
- sldtoppm - convert an AutoCAD slide file into a portable
- pixmap
-
- SYNOPSIS
- sldtoppm [-adjust] [-dir] [-height|-ysize s] [-info] [-
- lib|-Lib name] [-scale s] [-verbose] [-width|-xsize
- s] [slidefile]
-
- DESCRIPTION
- Reads an AutoCAD(Reg.) slide file and outputs a portable
- pixmap. If no slidefile is specified, input is read from
- standard input. The ppmdraw library is used to convert the
- vector 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
- following 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.
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- -lib name
- Extracts the slide with the given name from the slide
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- Page 1 (printed 12/9/93)
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- sldtoppm(1) AMIGA (10 October 1991) sldtoppm(1)
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- library given as input. The specified name is
- converted to upper case.
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- -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 standard 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 example) 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
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- Page 2 (printed 12/9/93)
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- sldtoppm(1) AMIGA (10 October 1991) sldtoppm(1)
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- -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.
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- Page 3 (printed 12/9/93)
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