Method of forming curved surfaces and the apparatus
November 9, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for producing an image of a person's face at a different age Formation dip and azimuth processing technique Method and apparatus for representation of a curve of uniform width Computer graphics system of general surface rendering by exhaustive sampling Computer systems for curve-solid classification and solid modeling Computer assisted design and electromechanical operating system Method and apparatus for generating a set of signals representing a curve Process for smoothing the curves generated in a television scanning system Method and apparatus for processing ultrasonic echo signals Patent #: 4703440 InventorAssigneeApplicationNo. 268773 filed on 11/09/1988US Classes:345/419Three-dimensionExaminersPrimary: Clark, David L.Attorney, Agent or FirmInternational ClassG06F 015/72Foreign Application Priority Data1985-07-27 JPAbstractA method and apparatus for interactively generating and visually displaying deformed, free curved surfaces using a computer aided display apparatus by designating a desired deformation area, including an action point, on a non-deformed surface, determining a vector field function Fi (deformation rate) at each point within the deformation area; designating a deformation vector Vi * (deformation quantity and direction) at the action point; adding the position vector Pi-1 * (non-deformed curved surface) to the position vector Vi * * Fi (deformation quantity) to generate a position vector Pi * (deformed curved surface); and visually displaying the deformed curved surface represented by the position vector Pi *. | |
