Application exit for potentially pickable primitives in a graphics system
June 25, 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 ReferencesSchematic diagram generating system using library of general purpose interactively selectable graphic primitives to create special applications icons Interactive page length adjustment with automatic pagination Method for global blending of computer modeled solid objects using a convolution integral Screen manager multiple viewport for a multi-tasking data processing system Graphics display system function circuit Picking in a graphics system Patent #: 4847605 InventorsApplicationNo. 124726 filed on 11/24/1987US Classes:345/642, Picking345/157Cursor mark position control deviceExaminersPrimary: Shaw, Dale M.Assistant: Nguyen, Phu K. Attorney, Agent or FirmInternational ClassesG09G 001/00G06F 015/62 AbstractA method is described that gives local control to an application program during the drawing process when a "pickable" primitive intersects the pick window. This control is provided in such a way that the state of graphics workstation remains unaltered. Thus the application program is permitted to make "picking" or visualization decisions at the moment the pick occurs, and then resume execution of the display program wherever desired (typically, at the graphic instruction following the one that caused the pick). This capability enables application programs to provide greater functionality, usability and productivity to their users. | |
