3D CAD Annotation Sync Between Orientation-Free and Drawing Views
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Solution Overview
Problem
Existing CAD systems lack seamless integration between 3D and 2D environments for annotating mechanical parts, leading to inconsistencies between digital mockups and technical drawings, hindering precise and efficient annotation processes.
Innovation Solution
A computer-implemented method that displays both orientation-free and fixed views of a 3D modeled object, allowing annotations to be created and synchronized across multiple views, ensuring compliance with technical drawings, and generating a final 2D presentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a 3D Tolerancing & Annotation application is used to propose a 3D definition of annotations, then the 3D presentation is correct, but the associated 2D layout presentation is incorrect and not editable
Solution Approach 1:
The patent merges the 3D annotation application and 2D layout application into a single integrated environment. The system combines the 3D visualization capabilities with 2D layout generation and editing functions, allowing users to work with both 3D and 2D representations simultaneously in one application, eliminating the need to switch between separate applications while maintaining accuracy in both domains
Solution Approach 2:
The patent creates a universal annotation application that performs multiple functions: it provides 3D visualization and annotation editing, generates 2D layout presentations, and maintains synchronization between both views. This multi-functional system eliminates the limitations of specialized applications that can only perform one function isolated from others
2Measurement precision
If a 2D Layout for 3D Design application is used to propose a 2D definition of annotations, then the 2D presentation is correct, but the representation in 3D is not always correct and manipulation is not possible in 3D environment
Solution Approach 1:
The patent merges the 3D and 2D annotation applications into a single integrated environment where both 3D visualization and 2D layout generation coexist. Users can manipulate annotations in the 3D environment while maintaining accurate 2D presentations, and the system automatically synchronizes changes between both views, providing both 3D adaptability and 2D precision simultaneously
Solution Approach 2:
The patent introduces dynamic synchronization between 3D and 2D views, allowing the system to automatically update and adapt annotations across both domains. Changes made in 3D are dynamically reflected in 2D views and vice versa, enabling the system to adapt to different working conditions and user needs in real-time
3Loss of information
If basic synchronization between 2D and 3D environments is implemented, then some communication exists, but there is no direct communication and inconsistencies arise between definitions
Solution Approach 1:
The patent implements a bidirectional feedback mechanism between 3D and 2D views. The system continuously monitors and syncs annotations across both domains, providing real-time feedback when changes are made. This feedback loop ensures that definitions remain consistent and prevents information loss, as any modification in one view automatically propagates to the other view with automatic consistency validation
Data Source
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AI summary
The disclosure notably relates to a computer-implemented method for annotating a 3D modeled object representing a CAD mechanical part or assembly of parts, two or more views of the 3D modeled object being displayed and at least one of the views being compliant with a view of a technical drawing. The method comprises obtaining a 3D scene and displaying an orientation-free view of the 3D modeled object, at least one fixed view of the 3D modeled object. The method also comprises creating, upon user action, an annotation by selecting at least one geometrical element on at least one of the views of the 3D modeled object and an annotation type. The method further comprises displaying the created annotation on at least the orientation-free view.