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Man Pages


Manual Reference Pages  -  COMGEOM-G (1)

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NAME

comgeom-g - convert GIFT COMGEOM model into MGED database

CONTENTS

SYNOPSIS

comgeom-g [-d debug_lvl] [-v version_num] [-s name_suffix] file.cg file.g
 

DESCRIPTION

Read a COMGEOM version 4 or version 5 format model from a GIFT-style input file, convert the geometry into the internal form used by the BRL-CAD package, and write an MGED-style binary database.

Each solid is given the name “s###”, retaining the COMGEOM solid number. Each region is given the name “r###”, retaining the COMGEOM region number. Regions are grouped together into various groups “g###” based on the region-id numbers. Group “g00” gets all regions with region-id of zero, “g0” gets ids one through 99, “g1” gets ids 100 through 199, etc.

The default input is COMGEOM version 5. Version 4 can be converted by specifying the -v4 flag. For the time being, the DoE MORSE/RAFFLE format (believed to be the original MAGIC format) can be converted by specifying the -v1 flag.

By default, the program comgeom-g operates silently. Because the program may require a minute or two to convert a large database, some users prefer to have various status reports that indicate the progress of the conversion. This can be selected by specifying the -d1 flag (debug level 1).

The units used in a COMGEOM file are specified on a header record. The units of an MGED database are always millimeters. comgeom-g performs automatic units conversion using the built-in units conversion feature of libwdb(3).

EXAMPLE

comgeom-g -d1 -v4 file.cg file.g

DIAGNOSTICS

The diagnostics are intended to be self-explanatory. Familiarity with GIFT COMGEOM terminology will be helpful.

BUGS

It is expected that the input file should be a valid COMGEOM model. While quite a bit of input checking is performed, wildly incorrect input may produce amusing results.

SEE ALSO

brlcad(1), mged(1), libwdb(3)

AUTHOR

Michael John Muuss

COPYRIGHT

This software is Copyright (c) 1989-2013 by the United States Government as represented by U.S. Army Research Laboratory.

BUG REPORTS

Reports of bugs or problems should be submitted via electronic mail to <devs@brlcad.org>.

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BRL-CAD COMGEOM-G (1) 04/04/2016

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