man/man1/getinfo.1

.\" RCSid "$Id: getinfo.1,v 1.6 2014/07/28 17:25:03 greg Exp $"
.TH GETINFO 1 1/15/99 RADIANCE
.SH NAME
getinfo - get header information from a RADIANCE file
.SH SYNOPSIS
.B getinfo
[
.B -d
][
.B "file .."
]
.br
.B getinfo
-
.br
.B getinfo
.B -a
.B "info_line1 .."
.br
.B getinfo
.B -c
.B "command .."
.SH DESCRIPTION
.I Getinfo
reads the header of each RADIANCE
.I file
and writes it to the standard output.
Octree and picture files are in a binary format, which makes
it difficult to determine their content.
Therefore, a few lines of text are placed at the beginning
of each file by the RADIANCE program that creates it.
The end of the header information and the start of the
data is indicated by an empty line.
The
.I \-d
option can be used to print the dimensions of an octree or
picture file instead.
For an octree,
.I "getinfo \-d"
prints the bounding cube (xmin ymin zmin size).
For a picture,
.I "getinfo \-d"
prints the y and x resolution (\-Y yres +X xres).
If no
.I file
is given, the standard input is read.
.PP
The second form of
.I getinfo
with a hyphen simply removes the header
and copies the body of the file from the standard
input to the standard output.
.PP
The third form of
.I "getinfo \-a"
adds one or more header lines to the standard input.
These lines are given as arguments to
.I getinfo,
and must be quoted if they contain spaces.
.PP
The fourth form of
.I "getinfo \-c"
is followed by a command and its arguments, which is executed
on the data segment of the standard input.
The header is passed along, with the addition of the command
at the end.
This is roughly equivalent to the following sequence, but does not
require the input to be in a file:
.IP "" .2i
( getinfo < input ; getinfo - < input | command .. )
.SH EXAMPLE
To print the header information from scene1.oct and scene2.hdr:
.IP "" .2i
getinfo scene1.oct scene2.hdr
.SH AUTHOR
Greg Ward
.SH "SEE ALSO"
oconv(1), pfilt(1), rcalc(1), rhinfo(1), rpict(1), rvu(1)
Revision:	1.7
Committed:	Tue Aug 30 06:10:12 2016 UTC (8 years, 9 months ago) by greg
Branch:	MAIN
CVS Tags:	rad5R2, rad5R1
Changes since 1.6:	+12 -1 lines
Log Message:	Added -a option to getinfo for adding lines to header
#	Content
1	.\" RCSid "$Id: getinfo.1,v 1.6 2014/07/28 17:25:03 greg Exp $"
2	.TH GETINFO 1 1/15/99 RADIANCE
3	.SH NAME
4	getinfo - get header information from a RADIANCE file
5	.SH SYNOPSIS
6	.B getinfo
7	[
8	.B -d
9	][
10	.B "file .."
11	]
12	.br
13	.B getinfo
14	-
15	.br
16	.B getinfo
17	.B -a
18	.B "info_line1 .."
19	.br
20	.B getinfo
21	.B -c
22	.B "command .."
23	.SH DESCRIPTION
24	.I Getinfo
25	reads the header of each RADIANCE
26	.I file
27	and writes it to the standard output.
28	Octree and picture files are in a binary format, which makes
29	it difficult to determine their content.
30	Therefore, a few lines of text are placed at the beginning
31	of each file by the RADIANCE program that creates it.
32	The end of the header information and the start of the
33	data is indicated by an empty line.
34	The
35	.I \-d
36	option can be used to print the dimensions of an octree or
37	picture file instead.
38	For an octree,
39	.I "getinfo \-d"
40	prints the bounding cube (xmin ymin zmin size).
41	For a picture,
42	.I "getinfo \-d"
43	prints the y and x resolution (\-Y yres +X xres).
44	If no
45	.I file
46	is given, the standard input is read.
47	.PP
48	The second form of
49	.I getinfo
50	with a hyphen simply removes the header
51	and copies the body of the file from the standard
52	input to the standard output.
53	.PP
54	The third form of
55	.I "getinfo \-a"
56	adds one or more header lines to the standard input.
57	These lines are given as arguments to
58	.I getinfo,
59	and must be quoted if they contain spaces.
60	.PP
61	The fourth form of
62	.I "getinfo \-c"
63	is followed by a command and its arguments, which is executed
64	on the data segment of the standard input.
65	The header is passed along, with the addition of the command
66	at the end.
67	This is roughly equivalent to the following sequence, but does not
68	require the input to be in a file:
69	.IP "" .2i
70	( getinfo < input ; getinfo - < input \| command .. )
71	.SH EXAMPLE
72	To print the header information from scene1.oct and scene2.hdr:
73	.IP "" .2i
74	getinfo scene1.oct scene2.hdr
75	.SH AUTHOR
76	Greg Ward
77	.SH "SEE ALSO"
78	oconv(1), pfilt(1), rcalc(1), rhinfo(1), rpict(1), rvu(1)