Method and system for programmed control of computer generated graphics layout
Schematic diagram generating system using library of general purpose interactively selectable graphic primitives to create special applications icons
Interactive method of developing software interfaces
Object-oriented parallel processing system, including concept objects and instance objects for messages exchanging between objects
Window system with independently replaceable window functionality
Method for copying linked data objects with selective copying of children objects and using a link table to record object linkages
Animation producing apparatus
Graphic data processing system Patent #: 5307453
ApplicationNo. 272950 filed on 07/11/1994
US Classes:715/503, Spreadsheet345/440, Graph generating345/441, Shape generating706/45, KNOWLEDGE PROCESSING SYSTEM707/104.1Application of database or data structure (e.g., distributed, multimedia, image)
ExaminersPrimary: Feild, Joseph H.
Attorney, Agent or Firm
International ClassG06T 011/20
AbstractA constraint based graphic system and method for creating graphic layouts of constraints-related graphic objects. The graphic objects are defined in a "constraint hierarchy". The constraint hierarchy defines graphic object in terms of predetermined object "primitives" (such as rectangles, circles and lines) whose parameters may be constants, variables, functions, or parameters of other objects. Unique grouping, indexing, listing and logic functions that allow individual objects or groups of objects to be defined or constrained by the defining functions and attributes of other objects or groups of objects or by constants, variables and other functions are facilitated. Arguments of the functions may include single valued and "list valued" variables.