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.\" RCSid "$Id: getinfo.1,v 1.6 2014/07/28 17:25:03 greg Exp $"
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.TH GETINFO 1 1/15/99 RADIANCE
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.SH NAME
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getinfo - get header information from a RADIANCE file
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.SH SYNOPSIS
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.B getinfo
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[
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.B -d
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][
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.B "file .."
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]
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.br
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.B getinfo
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-
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1.6 |
.br
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.B getinfo
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1.7 |
.B -a
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.B "info_line1 .."
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.br
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.B getinfo
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.B -c
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.B "command .."
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1.1 |
.SH DESCRIPTION
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.I Getinfo
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reads the header of each RADIANCE
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.I file
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and writes it to the standard output.
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Octree and picture files are in a binary format, which makes
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it difficult to determine their content.
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Therefore, a few lines of text are placed at the beginning
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of each file by the RADIANCE program that creates it.
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The end of the header information and the start of the
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data is indicated by an empty line.
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The
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.I \-d
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option can be used to print the dimensions of an octree or
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picture file instead.
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For an octree,
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.I "getinfo \-d"
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prints the bounding cube (xmin ymin zmin size).
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For a picture,
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.I "getinfo \-d"
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prints the y and x resolution (\-Y yres +X xres).
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1.1 |
If no
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.I file
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is given, the standard input is read.
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.PP
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1.6 |
The second form of
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.I getinfo
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with a hyphen simply removes the header
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1.1 |
and copies the body of the file from the standard
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input to the standard output.
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1.6 |
.PP
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The third form of
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.I "getinfo \-a"
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adds one or more header lines to the standard input.
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These lines are given as arguments to
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.I getinfo,
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and must be quoted if they contain spaces.
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.PP
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The fourth form of
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.I "getinfo \-c"
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is followed by a command and its arguments, which is executed
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on the data segment of the standard input.
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The header is passed along, with the addition of the command
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at the end.
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This is roughly equivalent to the following sequence, but does not
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require the input to be in a file:
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.IP "" .2i
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( getinfo < input ; getinfo - < input | command .. )
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.SH EXAMPLE
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To print the header information from scene1.oct and scene2.hdr:
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.IP "" .2i
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getinfo scene1.oct scene2.hdr
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1.1 |
.SH AUTHOR
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Greg Ward
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.SH "SEE ALSO"
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greg |
1.6 |
oconv(1), pfilt(1), rcalc(1), rhinfo(1), rpict(1), rvu(1)
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