Method and apparatus for targetless wafer alignment
Fast point/line correlations in graphic entities
Three-dimensional display device and method for pointing displayed three-dimensional image
Six degree of freedom graphic object controller
Three degree of freedom graphic object controller
Manipulatable orientation for a translatable graphic object
Computer aided drawing in three dimensions
Computer-aided chemical illustration system
Three-dimensional information handling system Patent #: 5293529
ApplicationNo. 096629 filed on 07/23/1993
US Classes:345/662, Alignment functions (e.g., snapping, gravity)345/157, Cursor mark position control device345/419Three-dimension
ExaminersPrimary: Jankus, Almis R.
Attorney, Agent or Firm
International ClassG06T 017/00
AbstractA method and apparatus for automatic alignment of manipulated objects in two-dimensional and three-dimensional graphic space. The present invention provides an alignment field gradient which emanates from objects surrounding the manipulated object(s). As a user manipulates an object, the present invention attracts the manipulated object into an aligned position and orientation with another object(s) in the displayed three-dimensional display space. The present invention provides alignment of all combinations of vertices, edges and planar faces for three-dimensional polyhedral objects and for all combinations of vertices and edges for two-dimensional polygonal objects.