000			02040cam a2200325 a 4500
003			EG-GiCUC
005			20250223031052.0
008			141011s2014 ua e f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.13.M.Sc.2014.Mo.O
100	0		_aMohamed Abdelazim Abdelsamiea Elkomy
245	1	0	_aOptimization of 3D representation of singular corner cad models using single cubic NURBS / _cMohamed Abdelazim Abdelsamiea Elkomy ; Supervised Sayed M. Metwalli
246	1	5	_aتكعيبي واحد NURBS التمثيل الأمثل الثلاثى الأبعاد لنماذج التصميم الوحدوى بمساعدة الحاسب باستخدام
260			_aCairo : _bMohamed Abdelazim Abdelsamiea Elkomy , _c2014
300			_a70 P. : _bplans ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production
520			_aNon - Uniform Rational B - Splines (NURBS) is one of the most powerful tools used to represent curves and surfaces. It is a piecewise parametric approximation to curves and surfaces. It can represent curves and surfaces of any degree but, in the same curve the degree is unique so, it is necessary to find a way to represent lines of degrees higher than one. Lines can be represented but the problem is to identify singular points in the corners. The goal of this work is then to identify single and exact corner point of lines represented by cubic NURBS. By this way a combination of arcs and lines can be represented by one NURBS with error not to exceed 10⁻¹². This combination has exact points in the whole curve or surface as well as corners
530			_aIssued also as CD
653		4	_aCubic NURBS
653		4	_aNurbs
653		4	_aNURBS representation
700	0		_aSayed Mohamed Metwalli , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c47717 _d47717