1 .TH MPICTURES 7
2 .SH NAME
3 mpictures \- picture inclusion macros
4 .SH SYNOPSIS
5 .B troff -mpictures
6 [
7 .I options
8 ]
9 .I file ...
10 .SH DESCRIPTION
11 .I Mpictures
12 macros insert PostScript pictures into
13 .MR troff (1)
14 documents.
15 The macros are:
16 .TP
17 .BI .BP " source height width position offset flags label
18 Define a frame and place a picture in it.
19 Null arguments, represented by \f5""\fR,
20 are interpreted as defaults.
21 The arguments are:
22 .RS
23 .TP
24 .I source
25 Name of a PostScript picture file, optionally
26 suffixed with
27 .RI ( n )
28 to select page number
29 .I n
30 from the file (first page by default).
31 .PD0
32 .TP
33 .I height
34 Vertical size of the frame, default
35 .BR 3.0i .
36 .TP
37 .I width
38 Horizontal size of the frame, current line length by default.
39 .TP
40 .I position
41 .L l
42 (default),
43 .LR c ,
44 or
45 .L r
46 to left-justify, center, or right-justify the frame.
47 .TP
48 .I offset
49 Move the frame horizontally from the original
50 .I position
51 by this amount, default
52 .BR 0i .
53 .TP
54 .I flags
55 One or more of:
56 .RS
57 .PD 0v
58 .TP
59 .BI a d 
60 Rotate the picture clockwise
61 .I d
62 degrees, default 
63 .IR d =90.
64 .TP
65 .B o
66 Outline the picture with a box.
67 .TP
68 .B s
69 Freely scale both picture dimensions.
70 .TP
71 .B w
72 White out the area to be occupied by the picture.
73 .TP
74 .BR l , r , t ,\fPb
75 Attach the picture to the left right, top, or bottom of the frame.
76 .RE
77 .TP
78 .I label
79 Place
80 .I label
81 at distance
82 .B 1.5v
83 below the frame.
84 .PD
85 .PP
86 If there's room,
87 .B .BP
88 fills text around the frame.
89 Everything destined for either side of the frame
90 goes into a diversion to be retrieved when the accumulated
91 text sweeps past the trap set by 
92 .B .BP
93 or when the diversion is explicitly closed
94 by 
95 .BR .EP .
96 .RE
97 .TP
98 .BI .PI " source height" , width , "yoffset\fB,\fPxoffset flags.
99 This low-level macro, used by
100 .BR .BP ,
101 can help do more complex things.
102 The two arguments not already described are:
103 .RS
104 .TP
105 .I xoffset
106 Offset the frame from the left margin by this amount, default
107 .BR 0i .
108 .PD0
109 .TP
110 .I yoffset
111 Offset the frame from the current baseline,
112 measuring positive downward, default
113 .BR 0i .
114 .PD
115 .RE
116 .TP
117 .B .EP
118 End a picture started by
119 .BR .BP ;
120 .B .EP
121 is usually called implicitly by a trap
122 at frame bottom.
123 .PP
124 If a PostScript file lacks page-delimiting comments,
125 the entire file is included.
126 If no
127 .B %%BoundingBox
128 comment is present, the picture is
129 assumed to fill an 8.5\(mu11-inch page.
130 Nothing prevents the picture from being placed off the page.
131 .SH SEE ALSO
132 .MR troff (1)
133 .SH DIAGNOSTICS
134 A picture file that can't be read by the PostScript
135 postprocessor is replaced by white space.
136 .SH BUGS
137 A picture and associated text silently disappear if
138 a diversion trap set by
139 .B .BP
140 isn't reached.
141 Call
142 .B .EP
143 at the end of the document to retrieve it.
144 .PP
145 Macros in other packages may break the adjustments
146 made to the line length and indent when text is being placed
147 around a picture.
148 .PP
149 A missing or improper
150 .B %%BoundingBox
151 comment may cause the frame to be filled incorrectly.