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
RTWEIGHT(1) BRL-CAD RTWEIGHT(1)

rtweight - Calculate weight, centroid and volume data for an mged model, using raytracing

rtweight [options...] model.g objects...

rtweight operates on the indicated objects in model.g to calculate the volume and centroid of each region encountered along rays. An auxiliary density file and region line of sight (LOS) thickness estimates are used to calculate the mass for each region. rtweight reads the density file specified by the -d. The file must contain lines with the material number, density in g/cc, and material name, each separated by some white space.

The following options are recognized.

-s#

Number of rays to fire in X and Y directions (square grid). Default is 512 (512x512). Conflicts with -g

-g#

Distance between rays in the X and Y directions in millimeters. Conflicts with -s

-a#

Select azimuth in degrees. Used with -e and conflicts with -M

-e#

Select elevation in degrees. Used with -a and conflicts with -M

-d file

Read density information from the specified file.

-M

Read model2view matrix from standard input. Conflicts with -a and -e

-r

Report individual region weights by region path name and also by region id number. The default only prints the total weight for all the objects specified.

-o file

Send the output to a specified file. The default is to standard output.

-P#

Specify the maximum number of processors (in a multi-processor system) to be used for this execution. The default is the maximum number for the machine.

rtweight also accepts all other options that the rt(1) program implements, such as for non-square views, perspective, etc.

mged(1), rt(1), librt(3)

Numerous error conditions are possible. Descriptive messages are printed on standard error (file descriptor 2).

Most deficiencies observed while using the rtweight program are usually with the librt(3) package instead.

James E. Hunt

This software is Copyright (c) 1991-2019 United States Government as represented by the U.S. Army Research Laboratory.

Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org
06/07/2022 BRL-CAD

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

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