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THIS PAGE ABSTRACT PAGES Geoffrey SauerbornUnclassified Unclassified Unclassified UU 20 19b. SUBJECT TERMSBRL-CAD, Primitives, CSG, rtweight, rtarea, hypersampling, raytracer16.
Brl cad nurbs code#
In addition to the database, part of BRL–CAD’s large code base was debugged,specifically the hypersampling feature in rtarea and the error checking in rtweight were corrected by taking into account thesampling rate.15. The primitive-shape database provides the target describers of BRL–CAD with a representative example ofeach primitive’s shape and its properties. After the database was completed, a tool was created to perform the same taskautomatically. The database includes special cases of other primitive shapes, such as a rectangular parallelepiped (rpp), anarbitrary convex solid with 8 vertices (arb8). The goal of this project was to create a database containing one instance of every primitive shape supported byBRL–CAD.
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However, no database of all (primitive) shapes existsin BRL–CAD. ABSTRACTBallistic Research Laboratory–Computer-Aided Design (BRL–CAD) is an open-source computer-aided design tool that usesconstructive solid geometry (CSG) to create models of primitive shapes. DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release distribution unlimited.13. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. PERFORMING ORGANIZATION REPORT NUMBERUS Army Research LaboratoryATTN: RDRL-SLB-S ARL-CR-0764Aberdeen Proving Ground, MD 210059. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. CONTRACT NUMBERComprehensive BRL–CAD Primitive Database W911NF-10-2-0076 5b. DATES COVERED (From - To)March 2015 Contractor 16 June 2014–29 August 20144. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing theburden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704 -0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302.Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currentlyvalid OMB control number.PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.1. 0704-0188Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining thedata needed, and completing and reviewing the collection information. REPORT DOCUMENTATION PAGE Form Approved OMB No. Do not return it to the originator.Īrmy Research Laboratory March 2015Aberdeen Proving Ground, MD 21005ARL-CR-0764Comprehensive BRL–CAD Primitive Database Mitchell Roberts Survivability/Lethality Analysis Directorate, ARLApproved for public release distribution unlimited.
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NOTICES DisclaimersThe findings in this report are not to be construed as an official Department of the Army positionunless so designated by other authorized documents.Citation of manufacturer’s or trade names does not constitute an official endorsement orapproval of the use thereof.Destroy this report when it is no longer needed. Comprehensive BRL–CAD Primitive Database by Mitchell RobertsARL-CR-0764 March 2015Approved for public release distribution unlimited.