3D Contriver Tool for Multi-Touch Solid Model Editing
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Solution Overview
Problem
Existing 3D modeling applications on multi-touch devices do not effectively utilize multi-touch capabilities for dynamic creation and modification of 3D solid models, requiring complex gestures and muscle memory, and are not user-friendly for non-experts.
Innovation Solution
A 3D contriver tool that allows users to create and modify 3D geometric forms using intuitive finger input gestures, combining multiple concepts into a simple workflow, enabling dynamic creation and adjustment without tool sequencing or mode switching, and incorporating 'soft' 3D navigation that adapts to viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If prior art modeling applications use mouse pointer interactions on multi-touch devices, then basic 3D navigation is maintained, but the applications do not effectively utilize multi-touch capabilities and require complex gestures and muscle memory
Solution Approach 1:
The application divides the touch screen into multiple functional zones (e.g., navigation zone, modeling zone, tool selection zone). Each zone responds to specific gesture types, allowing the system to differentiate between navigation commands and modeling commands based on where the user touches the screen, eliminating the need for complex gesture sequences
Solution Approach 2:
The application maps 2D touch gestures directly to 3D modeling operations. By using the touch screen's spatial dimensions and touch pressure sensitivity, the system translates simple 2D finger movements into 3D form creation and manipulation,充分利用 multi-touch capabilities without requiring users to learn complex 3D-specific gesture vocabularies
2Ease of operation
If specific creation tools are implemented for multi-touch use, then tool functionality is provided, but the tools are static modality tools that require proper selection and are detached from the 3D navigation experience
Solution Approach 1:
The application merges 3D navigation and 3D modeling functions into a single unified tool. Users can navigate the 3D space and create/modify models using the same continuous gesture interface, eliminating the need to switch between different tool modes or selection sequences. The system automatically interprets gesture intent based on context
Solution Approach 2:
The tool transitions from static modality to dynamic modality where the tool's function changes continuously based on user interaction. The same tool can perform navigation, selection, creation, and modification operations depending on the gesture being performed, making the tool adaptive rather than requiring users to select from multiple static tool options
3Measurement precision
If prior art applications require two hand interactions for modeling operations, then precise control is achieved, but the interactions are not adequate for smaller devices and require more muscle memory
Solution Approach 1:
The application creates a universal gesture system that works across different device sizes. The same gesture vocabulary functions whether the user has one or two hands available, whether on a small mobile device or a larger tablet. The system adapts to the user's physical situation rather than requiring a specific hand configuration
Data Source
AI summary
A modeling tool is activated in a 3D modeling application executing on a multi-touch device. A visual representation of a grid system tool is displayed in an active modeling plane and has three separate regions that determine the type of operation to be performed. An existing 3D form is displayed on the tool. A starting touch event of a gesture is received over the existing 3D form within one of the regions. As the gesture is received in the computer, the 3D form may be dynamically extended by adding 3D geometry to the 3D form (thereby adding faces to the 3D form). Alternatively, the 3D form may be scaled (i.e., if the starting touch event occurs over a visual scale grip. Alternatively, if the gesture consists of two taps, a bridge may be created joining the two tapped locations.