[MOAB-dev] Surface Senses

[Grindeanu, Iulian R.]

yes, this is the GEOM_SENSE_2 sparse tag on a surface set (geom dimension 2) ; the tag has a fixed size, 2
the first values indicates the volume for which this surface is positive oriented; the second the volume for which this is negative oriented

A surface is positive oriented in a volume if its normal points outside the volume

0 indicates there is no volume on that side
see   http://www.mcs.anl.gov/~fathom/moab-docs/html/md-contents.html

or http://www.mcs.anl.gov/~fathom/moab-docs/html/classmoab_1_1GeomTopoTool.html


________________________________________
From: moab-dev-bounces at mcs.anl.gov [moab-dev-bounces at mcs.anl.gov] on behalf of shriwise [shriwise at wisc.edu]
Sent: Friday, May 02, 2014 3:03 PM
To: moab-dev at mcs.anl.gov
Subject: [MOAB-dev] Surface Senses

Hi all,

Just wanted to check that I'm reading this convention correctly. Each
surface can have up to two parent volumes. The senses of a surface are
contained in a tag that is comprised of two entity handles. The first
entity handle has the sense forward and the second a sense reversed. Is
that so?

Cheers,

--
Patrick C. Shriwise
Research Assistant
University of Wisconsin - Madison
Engineering Research Building - Rm. 428
1500 Engineering Drive
Madison, WI 53706
(608) 446-8173