Two-Handed Multi-Stroke Marking Menus for 3D Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current user interfaces for animation and complex tasks, such as keyboards and mice, are non-intuitive and inefficient for navigating and selecting objects in three-dimensional environments, with graphical user interfaces often cluttering the display and requiring users to manually adjust numeric values for object placement.
Innovation Solution
The implementation of two-handed multi-stroke marking menus on multitouch devices, allowing users to draw simultaneous or alternating strokes with each hand to traverse menu hierarchies, with the system detecting hand positions and timing to provide intuitive and efficient selection of menu items and functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional keyboards and mice are used for navigation and object selection in three-dimensional environments, then basic input functions are provided, but the interface becomes non-intuitive and inefficient, requiring manual adjustment of numeric values and multiple steps for simple tasks
Solution Approach 1:
The patent replaces traditional mechanical input devices (keyboards, mice) with a multi-touch sensing surface that directly detects finger contacts and gestures. This substitution enables intuitive spatial interaction where users can directly manipulate virtual objects by touching and gesturing on the display surface, eliminating the need for numeric value adjustment and multiple menu navigation steps.
2Adaptability or versatility
If graphical user interfaces with icons, menus, and toolbars are implemented, then comprehensive functionality is provided, but the display becomes cluttered and the actual workspace for three-dimensional environment is reduced
Solution Approach 1:
The patent extracts menu functions from traditional graphical interfaces and embeds them directly into the spatial context of the three-dimensional workspace. Context-sensitive menus appear near the user's finger contacts or near relevant objects, providing comprehensive functionality without occupying fixed display real estate. This extraction allows the workspace to remain uncluttered while maintaining full access to interface functions.
Solution Approach 2:
The patent transitions from two-dimensional menu interfaces to three-dimensional spatial interaction. Users navigate and select objects by directly touching and gesturing in the three-dimensional space of the display, with menu options appearing in contextual locations rather than fixed two-dimensional positions. This dimensional transition maximizes the usable workspace area while providing comprehensive functionality.
3Productivity
If multi-touch devices support bimanual interactions, then interaction efficiency is increased through parallel hand motions, but the kinematics of the hand constrain the range of motions different fingers can make
Solution Approach 1:
The patent segments the user interface into multiple independent contact zones that can be simultaneously activated by different fingers. Each finger contact can trigger independent functions or menu systems, allowing users to perform multiple operations in parallel without being constrained by the mechanical limitations of individual finger ranges. The system detects and responds to each contact point independently, enabling versatile bimanual interaction.
Data Source
AI summary
A user interface provides for multi-stroke marking menus and other uses, for use on multitouch devices. One variant of multi-stroke marking is where users draw strokes with either both hands simultaneously or alternating between the hands. Alternating strokes between hands doubles the number of accessible menu items for the same number of strokes. Other inputs can be used as well, such as timing, placement, and direction.