Accession Number : ADA624518


Title :   An Investigation into Conversion from Non-Uniform Rational B-Spline Boundary Representation Geometry to Constructive Solid Geometry


Descriptive Note : Final rept. 1 Oct 2014-30 Sep 2015


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD SURVIVABILITY-LETHALITY ANALYSIS DIRECTORATE


Personal Author(s) : Yapp, Clifford W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a624518.pdf


Report Date : Dec 2015


Pagination or Media Count : 24


Abstract : Modern Ballistic Vulnerability/Lethality (V/L) analysis as conducted by the US Army Research Laboratory (ARL) almost always relies on geometry that has been created by suppliers using Non-Uniform Rational B-Spline (NURBS) geometric primitives. This project explored the possibility of an automatic conversion process to convert these models to a more traditional constructive solid geometry format that would offer speed improvements in analysis runs. Initial development has resulted in successful conversion of simple models and partial simplification of more complex targets, as well as suggesting future development directions to achieve higher conversion success rates.


Descriptors :   *GEOMETRY , COMPUTER AIDED DESIGN , CONVERSION , SET THEORY , SHAPE


Subject Categories : Numerical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE