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, 8 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
#	User	Rev	Content
1	greg	1.7	.\" RCSid "$Id: getinfo.1,v 1.6 2014/07/28 17:25:03 greg Exp $"
2	greg	1.1	.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	greg	1.6	.br
16			.B getinfo
17	greg	1.7	.B -a
18			.B "info_line1 .."
19			.br
20			.B getinfo
21	greg	1.6	.B -c
22			.B "command .."
23	greg	1.1	.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	greg	1.4	prints the y and x resolution (\-Y yres +X xres).
44	greg	1.1	If no
45			.I file
46			is given, the standard input is read.
47			.PP
48	greg	1.6	The second form of
49			.I getinfo
50			with a hyphen simply removes the header
51	greg	1.1	and copies the body of the file from the standard
52			input to the standard output.
53	greg	1.6	.PP
54			The third form of
55	greg	1.7	.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	greg	1.6	.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	greg	1.1	.SH EXAMPLE
72	greg	1.5	To print the header information from scene1.oct and scene2.hdr:
73	greg	1.1	.IP "" .2i
74	greg	1.5	getinfo scene1.oct scene2.hdr
75	greg	1.1	.SH AUTHOR
76			Greg Ward
77			.SH "SEE ALSO"
78	greg	1.6	oconv(1), pfilt(1), rcalc(1), rhinfo(1), rpict(1), rvu(1)