A three dimensional digitizer is provided for determining and digitizing the coordinates of a three dimensional object A hand-held stylus is used for tracing and determining points of interest on the surface of the object A plurality of antennas for radiating electromagnetic energy are provided, the antennas being embedded in a table having a work surface upon which the object is placed The radiating antennas have independent components which define a reference coordinate frame A transmitter applies electrical signals to the radiating antennas which generate a plurality of distinguishable radio frequency electromagnetic fields The stylus is provided with a projection for defining a point of contact between the stylus and the surface of the object of interest A plurality of receiving antennas are disposed in the stylus The receiving antennas have a known relationship with the projection and the point of contact on the object The receiving antennas are provided with a plurality of independent components for detecting each of the transmitted electromagnetic fields The output of the receiving antennas is supplied to an analyzer which converts the components of the electromagnetic fields received by the receiving antennas into the remote position and orientation of the receiving antennas relative to the reference coordinate frame Since the point of contact of the stylus and the receiving antennas are provided with a known relationship, the coordinates of the surface of the three dimensional object touched by the stylus are also determined in the analyzer

Three dimensional digitizer with electromagnetic coupling

Operation of a computer system is enhanced by means of a threedimensional tactile control unit interactively coupled by a software package to the computer. By means of a sticklike mechanism, which is mechanically controlled by a servomotor system and energized by computer-generated signals proportional to a stored definition of a three-dimensional object, the hand of an operator is restrained to move over the surface of the object. Hence, surfaces of a three-dimensional object, otherwise virtually impossible to display, may be ''''felt'''' by the operator.

Tactile man-machine communication system

The present invention generally relates to manufacturing apparatus for forming an integral three-dimensional object from individually contoured laminations of the same or gradually varying shape, successive laminae of that object being produced out of thin sheet or powder based materials through the cutting, fusing or physicochemical property changing action generated by a computer directed beam of concentrated energy or matter, successive substantially planar laminations of that object being automatically stacked together for step-wise laminar buildup of the desired three-dimensional object.

Apparatus for forming an integral object from laminations

A method for visually composing and editing original apparel designs including the steps of providing a plurality of configurations of individual garment components, such as bodices, sleeves, collars, skirts, yokes and the like, compiling a computer data base from which said components may be retrieved and assembled in finished apparel format on a fashion figure outline in selective composite fashion, thus visually displayed and compared on a graphic CRT and, if desired, modified by replacement of any component by selection of a new element from the data base, or by the use of an electronic locating instrument, or the design may be presented as permutation of any one or more selected parts. When a design is completed, its component CRT image is made available as hard copy, together, optionally alone or in conjunction, with hard copy of the corresponding pattern sections which can subsequently be used in cutting component parts comprising the design on suitable piece goods.

Method for designing apparel

A system and method for providing surface detail to computer generated two-dimensional graphic images of apparel or other free-form surfaces such that the three-dimensional appearance of the image is provided or enhanced. That is accomplished through a combination of user-controlled mesh generation for providing the topology of the image "surface" and a texture-mapping technique for applying the surface detail once the mesh has been generated. The system and method of the present invention may be used as one function of a larger two-dimensional computer aided design system for apparel, footwear, textiles, interior design, or other applications where the user may wish to add surface detail to a two-dimensional computer image of a three-dimensional object or surface.

Surface detail mapping system

Computer-aided graphical analysis

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Computer-aided graphical analysis