Lasso Selection Handle Positioning for Stable Display Control
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Solution Overview
Problem
Existing display control methods on smart terminals result in poor user experience due to the separation of the key handle from the lasso trajectory and target area after box selection, affecting visual perception and usability.
Innovation Solution
The method ensures that the key handle remains attached to the lasso trajectory by determining its location based on intersection points with the box selection trajectory, maintaining relative positions and sizes, allowing for stable control operations such as zoom and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the key handle is separated from the lasso trajectory after box selection, then the control operation can be performed independently, but the visual perception and user experience deteriorate
Solution Approach 1:
The patent merges the key handle with the lasso trajectory by determining the key handle's location based on intersection points with the box selection trajectory. This ensures the key handle remains visually attached to the trajectory throughout control operations, resolving the contradiction between independent control operation and visual perception.
2Adaptability or versatility
If the key handle location changes relative to the lasso trajectory during control operations, then the control flexibility increases, but the stability and consistency deteriorate
Solution Approach 1:
The patent implements a dynamic positioning mechanism where the key handle location is continuously determined based on the lasso trajectory's current state. The key handle maintains a fixed relative position (e.g., at a specific intersection point) that adapts as the trajectory changes, providing both flexibility and stability.
3Device complexity
If the key handle is positioned at a fixed location independent of the box selection trajectory, then the device complexity reduces, but the ease of operation and visual perception deteriorate
Solution Approach 1:
The key handle positioning mechanism serves itself by automatically determining its location based on the box selection trajectory's geometry. The system calculates intersection points between the trajectory and reference lines, allowing the key handle to self-position without external intervention, maintaining low complexity while improving intuitiveness.
Data Source
AI summary
This application relates to the field of smart terminal technologies, and specifically, to a display control method, an electronic device, and a readable storage medium. The method includes: The electronic device displays a first interface, where the first interface includes a first window of a first application; in response to a first operation of a user on the first interface, displays a first trajectory corresponding to the first operation, where the first trajectory surrounds at least a part of a first target; in response to ending the first operation by the user, converts the first trajectory into a second trajectory, displays the second trajectory, and displays a first control on the second trajectory, where the second trajectory is determined based on an edge of the first target, and the first target is located in the second trajectory.