Rotation Gesture Mapping for Touch Screen Dragging
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Solution Overview
Problem
Traditional drag gestures on miniaturized touch screen devices require repeated operations due to limited display range, resulting in low drag efficiency and inconvenience for users.
Innovation Solution
A method and apparatus that utilize rotation gesture trajectory information to determine a tangential direction and calculate a drag distance, allowing for continuous dragging on a touch screen, effectively replacing multiple traditional drag gestures with a single continuous rotation gesture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional drag gesture is used on miniaturized touch screen, then the touch screen can display contents within its limited display range, but multiple repeated drag operations are required to reach target location, resulting in low drag efficiency
Solution Approach 1:
The patent introduces a rotational dimension to the traditional linear drag gesture. Instead of only moving the finger in straight lines across the screen, users can rotate their finger in place, and the system maps this rotational motion to panning in multiple directions. This dimensional transformation allows users to traverse larger content areas without repeatedly repositioning their finger across the limited screen width.
Solution Approach 2:
The patent implements dynamic gesture recognition that adapts to user intent. The system continuously monitors finger movement patterns and dynamically adjusts the interpretation of gestures. When rotation is detected, the system dynamically switches from standard drag mode to rotation-based panning mode, calculating drag distance based on rotation angle and speed, thereby optimizing navigation efficiency in real-time.
2Ease of operation
If the touch screen display range is increased to reduce repeated dragging, then the device size must be increased, but miniaturized devices require small screen size
Solution Approach 1:
The patent virtualizes the display space by mapping rotational finger movements to panning across a content area that exceeds the physical screen boundaries. A single rotational gesture can pan content across multiple screen widths, effectively creating a virtual display area much larger than the physical screen without increasing device dimensions.
Solution Approach 2:
The patent introduces a gesture mapping layer that acts as an intermediary between the user's finger rotation and the content panning operation. This mapping layer translates rotational kinematics (angle, speed, direction) into virtual pan coordinates, allowing the small physical screen to control a much larger virtual content space through rotational gestures.
3Ease of operation
If multiple repeated drag operations are performed on miniaturized touch screen, then the limited display range is utilized, but user convenience is significantly reduced
Solution Approach 1:
The patent enables continuous panning action through sustained finger rotation. Instead of requiring users to lift and reposition their finger for each screen-width pan, the system allows continuous rotation to produce continuous panning motion. The drag distance accumulates based on the integration of rotational velocity over time, maintaining useful action throughout the gesture duration without interruption.
Data Source
AI summary
A method and apparatus for realizing human-machine interaction are disclosed in the embodiments of the present document, including: according to obtained rotation gesture trajectory information, determining a tangential direction of an initial movement trajectory of a rotation trajectory and rotation information; taking the obtained tangential direction as a drag direction, and calculating a drag distance according to obtained rotation information; and performing dragging on a touch screen according to the obtained drag direction and the obtained drag distance.