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picttoppm - convert a Macintosh PICT file into a portable pixmap
picttoppm [-verbose] [-fullres] [-noheader] [-quickdraw] [-fontdirfile] [pictfile]
Reads a PICT file (version 1 or 2) and outputs a portable pixmap. Useful as the first
step in converting a scanned image to something that can be displayed on Unix.
Make the list of BDF fonts in ``file'' available for use by picttoppm when drawing
text. See below for the format of the fontdir file.
Force any images in the PICT file to be output with at least their full resolution.
A PICT file may indicate that a contained image is to be scaled down before output.
This option forces images to retain their sizes and prevent information loss. Use
of this option disables all PICT operations except images.
Do not skip the 512 byte header that is present on all PICT files. This is useful
when you have PICT data that was not stored in the data fork of a PICT file.
Execute only pure quickdraw operations. In particular, turn off the interpretation
of special PostScript printer operations.
Turns on verbose mode which prints a a whole bunch of information that only pict-
toppm hackers really care about.
The PICT file format is a general drawing format. picttoppm does not support all the
drawing commands, but it does have full support for any image commands and reasonable sup-
port for line, rectangle, polgon and text drawing. It is useful for converting scanned
images and some drawing conversion.
Memory is used very liberally with at least 6 bytes needed for every pixel. Large bitmap
PICT files will likely run your computer out of memory.
FONT DIR FILE FORMAT
picttoppm has a built in default font and your local installer probably provided adequate
extra fonts. You can point picttoppm at more fonts which you specify in a font directory
file. Each line in the file is either a comment line which must begin with ``#'' or font
information. The font information consists of 4 whitespace spearated fields. The first
is the font number, the second is the font size in pixels, the third is the font style and
the fourth is the name of a BDF file containing the font. The BDF format is defined by
the X window system and is not described here.
The font number indicates the type face. Here is a list of known font numbers and their
1 application font
2 New York
8 San Franciso
12 Los Angeles
20 Times Roman
The font style indicates a variation on the font. Multiple variations may apply to a font
and the font style is the sum of the variation numbers which are:
Obviously the font defintions are strongly related to the Macintosh. More font numbers
and information about fonts can be found in Macintosh documentation.
Inside Macintosh volumes 1 and 5, ppmtopict(1), ppm(5)
Copyright 1993 George Phillips
29 November 1991 picttoppm(1)
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