Method and apparatus for correcting and/or aborting command gestures in a gesture based input system
First Claim
Patent Images
1. A graphic editing system including a surface and user controllable means for generating a first line image on said surface comprising:
- first means responsive to a first user action by said user controllable means for generating said first line image on said surface that terminates at first given coordinates on said surface; and
second means responsive to a second user action, which is carried out by said user controllable means subsequent said first user action, that retraces at least a portion of said first line image from said first given coordinates back to second given coordinates for erasing said portion of said first line image.
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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.
37 Citations
36 Claims
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1. A graphic editing system including a surface and user controllable means for generating a first line image on said surface comprising:
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first means responsive to a first user action by said user controllable means for generating said first line image on said surface that terminates at first given coordinates on said surface; and second means responsive to a second user action, which is carried out by said user controllable means subsequent said first user action, that retraces at least a portion of said first line image from said first given coordinates back to second given coordinates for erasing said portion of said first line image. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 29, 30, 31, 32, 34)
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2. The system according to claim I further comprises third means responsive to a third user action that extends from said second given coordinates in a direction other than the direction that retraces said first line image for generating a second line image extending in said other direction from said second given coordinates.
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15. A graphic editing system including a surface and user controllable means for generating a first line image on said surface comprising:
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first means responsive to a first user action for generating said first line image on said surface that terminates at a first point on said first line image having given coordinates on said surface; and second means responsive to a second user action, subsequent said first user action, that retraces at least a portion of said first line image from said first point to a second point thereon for erasing said portion of said first line image between said first and second points on said first line image. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 33, 35)
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27. A method for graphic editing on a surface in a system having a user controllable means for generating a first line image on said surface, said method comprising:
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generating said first line image on said surface in response to a first movement of said user controllable means on said surface, said first line image terminating at a first point on said first line image and having given coordinates on said surface; and erasing only said first line image on said surface between said first point and a second point on said first line image in response to a second movement of said user controllable means continuously retracing said first line image, within a predetermined distance of said first line image, from said first point to said second point, subsequent said first movement. - View Dependent Claims (28, 36)
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Specification