CAD Model Segmentation for Localized Editing
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Solution Overview
Problem
Conventional direct modeling methods in CAD systems face challenges such as local failures and increased material usage when making modifications to complex designs, as they require updating the entire model, which can lead to unintended solutions and inefficiencies.
Innovation Solution
The method involves identifying and separating regions of interest within a model based on defined criteria, applying geometric modifications to these regions, and reconnecting them to the base model, allowing for localized changes without affecting the entire model, thereby optimizing the design and reducing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional direct modeling methods update the entire model when making modifications, then the model remains consistent, but the complexity of the operation increases and material usage increases
Solution Approach 1:
The patent segments the model into a base model and separate region(s) of interest that can be independently modified. This allows editing operations to be applied only to specific regions rather than the entire model, reducing operational complexity while maintaining model consistency through the reconnection process
Solution Approach 2:
The patent extracts regions of interest from the base model, applies modifications to these separated regions, and then reconnects them. This extraction approach allows localized editing without affecting the entire model, reducing the complexity of operations while preserving model integrity
2Reliability
If conventional direct modeling methods update the entire model when making modifications, then the model remains complete, but the time required for editing increases
Solution Approach 1:
By segmenting the model into base model and separable regions, the patent enables parallel or sequential processing of only the regions requiring modification, significantly reducing editing time while maintaining model completeness through the reconnection step
Solution Approach 2:
The patent performs preliminary separation of regions of interest before applying modifications. This preliminary action prepares the model for efficient editing by pre-identifying and isolating the regions that need changes, reducing the overall time required for the editing process
3Reliability
If conventional direct modeling methods apply modifications to the entire model, then the design intent is maintained, but material usage increases
Solution Approach 1:
The patent applies modifications locally to specific regions of interest rather than the entire model. This local quality approach allows design intent to be preserved in modified regions while avoiding unnecessary material usage in regions that remain unchanged, optimizing material efficiency
4Manufacturing precision
If conventional direct modeling methods update the entire model, then the model remains accurate, but the precision of localized modifications decreases
Solution Approach 1:
By segmenting the model into base model and separable regions, the patent enables high-precision modifications to be applied to specific regions of interest. This segmentation allows for greater measurement precision in localized areas while maintaining overall model accuracy through the reconnection process
Data Source
AI summary
A method of editing a model includes identifying one or more regions of interest (15, 40) in the model and separating the one or more regions (15, 40) from the model to form a separated region and a base model (21). The method includes applying a change (63) to the separated region to form a changed separated region; re- connecting (65) the changed separated region to the base model to form a changed model; and outputting the resulting topology (66).