Application exit for potentially pickable primitives in a graphi

Details Application exit for potentially pickable primitives in a graphi Application exit for potentially pickable primitives in a graphi

1987-11-24

1991-06-25

Shaw, Dale M.

Boots, shoes, and leggings

364518, 340706, 340709, G09G 100, G06F 1562

Patent

active

050272918

ABSTRACT:
A 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.

REFERENCES:
patent: 4656603 (1987-04-01), Dunn
patent: 4709348 (1987-11-01), Horn et al.
patent: 4791583 (1988-12-01), Colburn
patent: 4807142 (1989-02-01), Agarwal
patent: 4837563 (1989-06-01), Mansfield et al.
patent: 4847605 (1989-07-01), Callahan et al.

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