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      •   BUIR Home
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      • Bilkent Theses
      • Theses - Department of Computer Engineering
      • Dept. of Computer Engineering - Master's degree
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      Free-form solid modeling using deformations

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      Author
      Güdükbay, Uğur
      Advisor
      Özgüç, Bülent
      Date
      1989
      Publisher
      Bilkent University
      Language
      English
      Type
      Thesis
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      Abstract
      One of the most important problems of available solid modeling systems is that the range of shapes generated is limited. It is not easy to model objects with free-form surfaces in a conventional solid modeling system. Such objects can be defined arl^itrarily but then operations on them are not transparent and complications occur. A method for achieving free-form effect is to define regular objects or surfaces, then deform them. This keeps various properties of the model intact while achieving the required visuaJ appearance. This thesis explains a number of geometric modeling techniques with deformations applied to them in attempts to combine various approaches developed so far. Regular deformations, which include twisting, bending, and tapering, and free-form deformation technique are combined as a new deformation method. This eliminates some of the disadvantages peculiar to each method and utilizes the advantages of both.
      Keywords
      Deformations
      geometric modeling of solids
      free-form surfaces,
      user interface design
      shading
      hidden surface elimination
      computer graphics
      Permalink
      http://hdl.handle.net/11693/17250
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      • Dept. of Computer Engineering - Master's degree 516
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