Method and apparatus for correcting and/or aborting command gest

Details Method and apparatus for correcting and/or aborting command gest Method and apparatus for correcting and/or aborting command gest

1993-12-30

1996-04-16

Nguyen, Phu K.

G06F 1500

Patent

active

055091148

ABSTRACT:
In a graphical editing system, a user may both reshape and/or abort a command gesture already drawn. The gesture is retraced by the user by backtracing over the gesture, i.e., drawing backwards over the gestural mark. As the user traces backwards over the gesture, the system detects a reverse in direction, and the gesture is erased. When the user draws in a direction that is not tracing backwards over the gesture, the change in direction is sensed and the gesture is continued. To abort a gesture, it is retraced back to its origin.

REFERENCES:
"Symbolic Construction of a 2-D Scale-Space Image," IEEE Transactions on Pattern Anaysis and Machine Intelligence, Eric Saund, Aug. 1990, vol. 12, No. 8.
"Issues in Combining Marking and Direct Manipulation Techniques", Gordon Kurtenbach and William Buxton, Nov. 11-13, UIST 1991, pp. 137-144.
aha! InkWriter Quick Reference Guide and Handbook, aha! Software Corporation, Copyright 1993.

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