Hybrid History-Free and History-Based 3D Model Tree
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Solution Overview
Problem
Current CAD and PLM systems are limited by the segregation of history-based and history-free modeling, forcing users to choose between two paradigms, which restricts flexibility and predictability, and results in loss of information when transitioning between them.
Innovation Solution
A system and method that combine a history-free parent node with history-based child nodes in a model tree, allowing users to edit and migrate features between both paradigms within the same part file, enabling the benefits of both flexibility and predictability while maintaining design integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users choose history-based modeling, then predictability and design integrity are improved, but flexibility and ease of modification are reduced
Solution Approach 1:
The patent merges history-based and history-free modeling paradigms into a unified model tree structure. The root node operates in history-free mode for flexibility, while child nodes operate in history-based mode for predictability. This combination allows users to leverage both paradigms simultaneously within the same model, resolving the contradiction between flexibility and predictability.
Solution Approach 2:
The model tree is segmented into different operational zones: the root node uses history-free modeling for initial flexibility, while subsequent child nodes use history-based modeling for controlled modifications. This segmentation allows different parts of the modeling process to use the most appropriate paradigm for each stage, maintaining both flexibility and predictability where needed.
2Adaptability or versatility
If users choose history-free modeling, then flexibility and ease of modification are improved, but predictability and design integrity are reduced
Solution Approach 1:
The system combines history-free root nodes with history-based child nodes in a single model tree. This merger allows the flexibility of history-free modeling at the foundational level while maintaining predictability through history-based tracking of modifications in subsequent levels, resolving the contradiction between these two characteristics.
Solution Approach 2:
Different parts of the model tree have different qualities: the root node is history-free for maximum flexibility, while child nodes are history-based for predictability. This local differentiation allows each part of the system to exhibit the quality most suitable for its function, resolving the global contradiction.
3Adaptability or versatility
If users transition between history-based and history-free modeling, then adaptability is improved, but information loss occurs
Solution Approach 1:
The patent merges both modeling paradigms into a single unified model tree structure, eliminating the need to transition between separate systems. The root node stores history-free data while child nodes store history-based modifications, preserving all information without loss during transitions.
Solution Approach 2:
The system performs preliminary action by establishing a hybrid model tree structure from the beginning, where both history-free and history-based nodes coexist. This prevents information loss that would occur during later transitions, as the structure is prepared in advance to accommodate both paradigms simultaneously.
4Device complexity
If users are forced to choose one modeling paradigm, then system simplicity is maintained, but productivity and user efficiency are reduced
Solution Approach 1:
The system merges both modeling paradigms into a single unified framework with a common model tree structure. This merger allows users to switch between history-free and history-based modes as needed without dealing with separate systems, maintaining relative simplicity while dramatically improving productivity through paradigm flexibility.
Solution Approach 2:
The model tree structure is designed to be universal, accommodating both history-free root nodes and history-based child nodes within the same framework. This multi-functionality allows the system to perform both types of modeling operations through a single interface, improving user efficiency without significantly increasing complexity.
Data Source
AI summary
A system, method, and computer readable medium. A method includes receiving a model tree that defines a three-dimensional (3D) model. The model tree includes a history-free parent node that defines a complex 3D model and a plurality of history-based child nodes that define additional features that modify the complex 3D model. The method includes computing the 3D model, where the computed 3D model combines the parent node and the child nodes. The method includes displaying the computed 3D model as the complex 3D model modified by the additional features defined by the child nodes.