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greg |
1.3 |
.\" RCSid "$Id: getbbox.1,v 1.2 2003/12/09 15:59:06 greg Exp $"
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greg |
1.1 |
.TH GETBBOX 1 11/15/93 RADIANCE
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.SH NAME
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getbbox - compute bounding box for RADIANCE scene
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.SH SYNOPSIS
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.B getbbox
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[
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.B \-w
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][
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.B \-h
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]
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[
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.B "input .."
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]
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.SH DESCRIPTION
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.I Getbbox
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reads each scene description
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.I input
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and computes the minimum axis-aligned parallelopiped that
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will enclose all of the objects.
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Each
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.I input
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can be either a file name, or a command (enclosed in quotes
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and preceded by a `!').
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If no arguments are given, the standard input is read.
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A hyphen ('-') can also be used to indicate the standard input.
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.PP
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The
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.I \-w
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option suppresses warnings.
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The
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.I \-h
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option suppresses the header line "xmin xmax ymin ymax zmin zmax".
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.SH EXAMPLE
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To compute the bounding box for the object ``thingy'':
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.IP "" .2i
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getbbox thingy
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.PP
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To preview ``scene'':
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.IP "" .2i
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greg |
1.3 |
preview \-v FOUR \-b `getbbox \-h scene` scene
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greg |
1.1 |
.SH NOTES
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Since expanding a scene can require considerable overhead, it
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is better to use the bounding cube produced by
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.I oconv(1)
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and read by
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.I getinfo(1)
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if an octree exists for the scene.
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However, there are certain circumstances, such as foreign object
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placement, that require knowing the bounding box rather than
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just the bounding cube.
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.SH AUTHOR
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Greg Ward
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.SH ACKNOWLEDGEMENT
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Work on this program was sponsored by the LESO
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group at EPFL in Switzerland.
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.SH "SEE ALSO"
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getinfo(1), oconv(1), xform(1)
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