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researchv10 Dan Cross

.if "\*(Bp"" .so /usr/lib/tmac/tmac.bits
.TH MBITS 6
.CT 1 writing_troff
.SH NAME
mbits \- macros to typeset bitmaps
.SH SYNOPSIS
.B troff
[
.I option ...
]
.B -mbits
[
.I option ...
]
.I file ...
.SH DESCRIPTION
These macros are used to typeset bitmaps.
They are compatible with other
.I troff
macro packages, so that bitmap figures may be included in documents.
.TP "\w'\f5.BM \fIf s dX dY\fR'u+1m"
\f5\&.BM \fIf\fR
Set the format for subsequent \&.BM requests to
.IR f .
The default is
.L b
for
.IR blitblt (9.1)
output.
The other possibility is 
.L i
for faces and large icons in
.SM
ASCII
format.
.TP
\f5\&.BM \fIf s\fR
Insert the bitmap from file
.IR f ;
each pixel will be
.I s
basic units square.
The bitmap origin is placed at the current point, which
is left unchanged.
.TP
\f5\&.BM \fIf s dX dY\fR
Set the number registers
.IR dX " and " dY
to the width and height (in basic units) of the bitmap in file
.IR f ,
assuming pixel size
.IR s .
This form may be used to calculate positioning.
.SH EXAMPLES
.PP
This sequence centers the bitmap and spaces past it to continue
with the text:
.PP
.EX
\&.BM i
\&.BM /n/face/48x48x1/pjw 6 dX dY
\&.sp
\&.in (\en(.lu-\en(dXu)/2u
\&.BM /n/face/48x48x1/pjw 6
\&.in
\&.sp \en(dYu
.if n .ig
.sy echo  >/tmp/pjw\n($$ -e '\
0x0000,0x1FA0,0x0000,\\n0x0000,0x7FFC,0x0000,\\n0x0000,0xFEFF,0x0000,\\n\
0x0001,0xBFBF,0xC000,\\n0x0001,0xEFFA,0xE000,\\n0x0002,0x00FF,0xF800,\\n\
0x0002,0x007F,0xFF80,\\n0x0000,0x001F,0x7E00,\\n0x000C,0x001F,0xFFC0,'
.sy echo >>/tmp/pjw\n($$ -e '\
0x0000,0x0015,0xFFC0,\\n0x0030,0x001F,0xFFF0,\\n0x0070,0x000F,0xFEB0,\\n\
0x00C0,0x0007,0xFFF8,\\n0x00E0,0x0007,0xFFE8,\\n0x01E0,0x0003,0xFFF8,\\n\
0x03C0,0x0001,0xFFF8,\\n0x03E0,0x0001,0xFFF8,\\n0x07C2,0x8000,0xFFF0,'
.sy echo >>/tmp/pjw\n($$ -e '\
0x0FFA,0xF83F,0xBFF8,\\n0x0FE0,0x7C67,0xFFF8,\\n0x1FF1,0xEFF9,0x7FF8,\\n\
0x1FF7,0xFFFF,0xFFF8,\\n0x1FF5,0xA4FF,0xFFF8,\\n0x1FD0,0x247F,0xFFF0,\\n\
0x0FE0,0x8045,0xFFF0,\\n0x1FA0,0x0870,0x3FF0,\\n0x0320,0x0060,0xDFE0,'
.sy echo >>/tmp/pjw\n($$ -e '\
0x0B80,0x1030,0x1F80,\\n0x0181,0x601F,0xF780,\\n0x0085,0x405A,0x5F00,\\n\
0x0000,0x0BFB,0xFF00,\\n0x0180,0x1FE8,0xEE00,\\n0x0380,0x07F2,0xBE00,\\n\
0x0182,0x03D5,0xEFC0,\\n0x0080,0x0075,0x7F80,\\n0x01C1,0xD5DD,0x4F80,'
.sy echo >>/tmp/pjw\n($$ -e '\
0x00C1,0x57FF,0xFF80,\\n0x0040,0x0039,0x7F00,\\n0x0060,0x006B,0xCE00,\\n\
0x0004,0x1FEB,0x6000,\\n0x0000,0x07FF,0xF800,\\n0x0002,0x0015,0xA000,\\n\
0x0000,0x0057,0xC000,\\n0x0002,0x003F,0x4000,\\n0x0000,0x804B,0xC000,'
.sy echo >>/tmp/pjw\n($$ -e '\
0x0002,0xBBFE,0x8000,\\n0x0000,0x8FFB,0xC000,\\n0x0001,0x7ABF,0xC000,'
.BM i
.BM /tmp/pjw\n($$ 6 dX dY
.sp
.in (\n(.lu-\n(dXu)/2u
.BM /tmp/pjw\n($$ 6
.sy rm -f /tmp/pjw\n($$
.in
.sp \n(dYu
..
.EE
.SH FILES
.F /usr/lib/btroff
.SH SEE ALSO
.IR blitblt (9.1), 
.IR troff (1), 
.IR bitfile (9.5), 
.IR ms (6)
.SH BUGS
At time of writing,
.I mbits
does not work with PostScript output devices.
See
.IR mpictures (6)
for an alternative.
.br
.B \&.BM
does not work inside a diversion.
.br
The concept of `pixel size' varies among typesetting devices.

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