GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  G-SHELL-RECT (1)

.ds Aq ’

NAME

g-shell-rect - Produce triangulated shell from BRL-CAD model

CONTENTS

SYNOPSIS

g-shell-rect [-d debug_level] [-n] [-g cell_size] [-i initial_ray_dir] [-d debug_level] -o brlcad_output_file database.g object(s)

DESCRIPTION

g-shell-rect converts the specified objects(s) from a BRL-CAD model database.g to a single NMG solid using raytracing. Rays are fired in a uniform grid. The direction for the first set of rays is chosen by calculating the presented area of the bounding box of the object(s) and selecting the direction with the largest area. The user may override this by specifying a desired initial ray direction using the -i option (see below). The initial shell is constructed using only the first and last intersections with the object(s). This will typically result in some rather large faces with normals at right angles to the ray direction. Unless the -n option is specified, these faces are then subdivided (according to the cell_size ) and additional rays fired from the other two directions are used to refine their shape. The resulting NMG solid will be named shell and will be written to the specified brlcad_output_file.

The following command line options are recognized:

-g cell_size

Specify the dimensions (in millimeters) of the grid spacing. The default is 50mm.

-i initial_ray_dir

Specify the initial ray direction. Valid values are X, Y, or Z. The best results are usually obtained by raytracing in the direction that produces the most hits first.

-d debug_level

Set the debugging level. Higher values produce more debugging information.

-n

Suppresses the refinement stage (firing rays from the secondary and tertiary axis directions).

-o output.g

Specifies the name of the BRL-CAD geometry file to create.

EXAMPLE

$ g-shell-rect -o shell.g sample.g sample_object

DIAGNOSTICS

Error messages are intended to be self-explanatory.

AUTHOR

BRL-CAD Team

COPYRIGHT

This software is Copyright (c) 1998-2013 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>.

Search for    or go to Top of page |  Section 1 |  Main Index


BRL-CAD G-SHELL-RECT (1) 04/04/2016

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.