کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
499004 863022 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wavelets-based NURBS simplification and fairing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Wavelets-based NURBS simplification and fairing
چکیده انگلیسی

This paper describes a novel simplification and fairing method for NURBS (Non-Uniform Rational B-Spline) curves and surfaces using orthogonal non-uniform spline wavelets. The compression nature of wavelets is utilized for NURBS simplification. Sufficient conditions for C0C0- and G1G1-continuity at the shared boundary of multiple NURBS patches are proved and utilized to preserve the boundary continuity. Our fairing method filters out unwanted imperfections and noise on the NURBS curves and surfaces while preserving geometric details via wavelet decomposition and selective reconstruction. The continuity between neighboring patches is preserved automatically during fairing. Our algorithm is accurate, automatic, robust, efficient, and can be extensively applied to any NURBS models in various research fields such as Computer Aided Design (CAD), Reverse Engineering (RE), finite element analysis and isogeometric analysis. Several examples are presented in this paper, including a propeller CAD model, a Navy boat model and a G1G1-continuous NURBS model of the thoracic aorta constructed from medical CT (Computed Tomography) data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 199, Issues 5–8, 1 January 2010, Pages 290–300
نویسندگان
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