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用于参数曲线自由变形的一种新的缩放因子 被引量：1

A New Extension Factor for Free form Deformation of Parametric Curve
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摘要 提出一种用于参数曲线自由变形的新的缩放因子,用该因子此去作用(缩放)待变形曲线,从而使曲线发生形变。通过交互改变控制参数,可达到预期的变形效果。实验表明,这种方法数学背景简单,易于控制,重复使用可获得丰富的变形效果,适用于几何造型、计算机动画等领域。 A new extension factor for free - form deformation of parametric curve is presented. Using this extension factor to deform the parametric curve needed deformation, through changing the controlled parameter, the ideal deformation effect can be got. From the experiments, we can see that the mathematic background of this method is simple mid;easy to control, and we can get plentiful deformation effect by using it repeatedly. Thus, this method can be used in many fields such as geometric modeling and computer animation.
作者 严兰兰 宋来忠
机构地区 三峡大学理学院
出处 《计算机与数字工程》 2006年第11期106-108,138,共4页 Computer & Digital Engineering
关键词 参数曲线 缩放因子 自由变形 parametric curve,extension factor,free- form deformation
分类号 TP391 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献13

  • 1A.H.Barr.Global & local deformations of solid primitives[J].Computer Graphics,1984,18 (3):21 ～ 30
  • 2Ugnr Gudukbay,Bulent Uzgu.Free-form solid modeling using deformations[J].Computer & Graphics,1990,14(3/4):491 ～450
  • 3T.W.Sederberg,R.Parry.Free-form deformations of solid geometric models[J].Computer Graphics,1986,20(4):151 ～ 160
  • 4Coquillart S.Extended free-form deformation:A sculpting tool for 3D geometric modeling[J].Computer Graphics,1990,24(4):187 ～ 196
  • 5lazarus,Coquillart S,Janeene P.Axial deformation:An intuitive technique[J].Computer Aided Design,1994,26(8):607 ～613
  • 6Feng J Q,Ma L Z,Peng Q S.New free-form deformation through the control of parametric surfaces[J].Computer & Graphics,1996,20(4):531 ～539
  • 7L Piegl.Modifying the shape of rational B-spline,Part L Curves[J].Computer Aided Design,1989,21 (8):509 ～518
  • 8C K Au,M M F Yuen.Unified approach to NURBS curves shape modification[J].Computer Aided Design,1995,27(2):85 ～93
  • 9Sanchez Reyrs J.Asimple technique for NURBS shape modification[J].IEEE Computer Graphics & Applications,1997,17(1):52 ～59
  • 10Barry Fowler,Richard Bartels.Constraint-based curve manipulation[J].IEEE Computer Graphics & Applications,1993,13(5):43～49

二级参考文献11

  • 1[1]A H Barr. Global & local deformations of solid primitives[J]. Computer Graphics, 1984, 18(3):21～30
  • 2[2]Ugur Güdükbay, Bülent Uzgü cc. Free-form solid modeling using deformations[J].Computer & Graphics,1990, 14(3/4):491～500
  • 3[3]T W Sederberg, R Parry. Free-form deformations of solid geometric models[J].Computer Graphics,1986,20(4):151～160
  • 4[4]Coquillart S. Extended free-form deformation: A sculpting tool for 3D geometric modeling[J]. Computer Graphics, 1990,24(4):187～196
  • 5[5]Lazarus, Coquillart S, Jancene P. Axial deformation: An intuitive technique[J]. Computer-Aided Design, 1994, 26(8):607～613
  • 6[6]Feng J Q, Ma L Z, Peng Q S. New free-form deformation through the control of parametric surfaces[J]. Computer & Graphics, 1996, 20(4):531～539
  • 7[7]L Piegl. Modifying the shape of rational B-spline, Part I: Curves[J]. Computer-Aided Design, 1989, 21(8):509～518
  • 8[8]C K Au, M M F Yuen. Unified approach to NURBS curves shape modification[J]. Computer-Aided Design, 1995, 27(2):85～93
  • 9[9]Sánchez Reyrs J. A simple technique for NURBS shape modification[J]. IEEE Computer Graphics & Applications, 1997, 17(1):52～59
  • 10[10]Barry Fowler, Richard Bartels. Constraint-based curve manipulation[J]. IEEE Computer Graphics & Applications, 1993, 13(5):43～49

共引文献39

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计算机与数字工程
2006年 第11期

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