Two-Finger Touch Gesture for GUI Portion Selection
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Solution Overview
Problem
Current touch interfaces on mobile devices lack an intuitive method for selecting a portion of the graphical user interface, making it difficult for users to easily capture screenshots or select specific parts of the GUI, unlike desktop interfaces which use clear keyboard shortcuts or mouse clicks.
Innovation Solution
A method utilizing two simultaneous touch inputs on a multi-touch display to select a portion of the GUI, allowing users to easily select and screenshot desired areas using a single gesture, such as touching the screen with two fingers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional touch interface gestures are used for GUI portion selection, then the device maintains simple touch screen hardware, but the user experience becomes non-intuitive and complex compared to desktop interfaces
Solution Approach 1:
The patent inverts the traditional approach by making the selection area itself interactive rather than requiring complex gestures to define a selection. When a user touches the screen, a virtual selection area appears at the touch location, and the user simply drags this area to the desired size and position, reversing the conventional method where gestures define selections.
Solution Approach 2:
The patent introduces a virtual selection area as an intermediary element between the user's touch input and the final GUI portion selection. This virtual area acts as a mediator that translates simple touch-and-drag gestures into precise selection regions, making the interaction more intuitive while bridging the gap between touch input and selection output.
2Productivity
If multiple buttons are pressed simultaneously to capture screenshots on touch interfaces, then the screenshot function can be achieved, but the operation becomes counter-intuitive for users familiar with desktop interfaces
Solution Approach 1:
Instead of using a complex multi-button press gesture to trigger screenshot capture, the patent allows users to simply touch and drag to define the selection area, then automatically captures the screenshot when the selection is made, inverting the traditional approach where a specific gesture triggers the capture function.
Solution Approach 2:
The system automatically performs the screenshot capture function once the user defines the selection area through simple touch and drag gestures, eliminating the need for users to learn and execute complex multi-step gestures. The system serves itself by automatically capturing the selected portion without requiring additional user actions.
3Ease of operation
If desktop-style mouse click and drag is implemented on touch interface, then intuitive portion selection is achieved, but the touch interface loses its distinctive gesture-based interaction paradigm
Solution Approach 1:
The patent makes the virtual selection area serve multiple functions: it acts as a visual indicator of the selection region, responds to user dragging to define the selection boundaries, and triggers the screenshot capture function. This multi-functional element maintains touch interface versatility while providing desktop-like intuitive selection.
Solution Approach 2:
The virtual selection area is dynamic in nature, appearing when the user touches the screen, expanding or contracting as the user drags, and disappearing when the selection is confirmed. This dynamic behavior adapts to user actions while maintaining the touch interface's gesture-based interaction paradigm.
Data Source
AI summary
A method to select a portion of a Graphical User Interface, the method being executed by a mobile device comprising a multi-touch display displaying said Graphical User Interface, the method comprising the acts of detecting two simultaneous touch inputs and selecting a portion of the displayed Graphical User Interface according to the two touch inputs.