Modeled Object Envelope Generation for CAD Rendering Efficiency
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Solution Overview
Problem
Current methods for designing envelopes of modeled objects in computer-aided design systems are inefficient, as they often fail to preserve design intent and require significant computational resources, especially when dealing with complex geometries and non-convex regions, leading to long processing times and aberrations in rendering.
Innovation Solution
A computer-implemented method that discretizes a modeled object into a grid of cells, adding layers to identify and close gaps while preserving design intent, allowing for a simplified geometry representation that maintains the main topological features and reduces unnecessary detail, thereby improving computational speed and ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual removal of non-visible geometries is performed, then rendering complexity is reduced, but time consumption and computational cost increase significantly
Solution Approach 1:
The patent creates an envelope geometry that copies and simplifies the external shape of the complex modeled object. This envelope serves as a simplified representation that preserves the main topological features and design intent while eliminating unnecessary geometric details, enabling efficient rendering without manual geometry removal
Solution Approach 2:
The patent extracts only the essential external geometry of the modeled object by generating an envelope that captures the main shape and topological features. This extraction process automatically removes non-visible and unnecessary geometries while preserving design-critical features, avoiding time-consuming manual removal
2Manufacturing precision
If complex geometries with millions of elements are rendered, then design detail is preserved, but frame rate decreases and real-time interaction becomes difficult
Solution Approach 1:
The patent segments the complex modeled object into an envelope geometry that captures only the essential external features. This segmentation separates critical design geometry from unnecessary details, allowing the system to render only the essential elements at high frame rates while preserving design intent
Solution Approach 2:
The patent creates a simplified envelope copy of the complex object that preserves the main topological features and design intent. This copy enables real-time rendering and interaction by reducing geometric complexity while maintaining the essential shape characteristics needed for design work
3Productivity
If exterior geometry is simplified to improve rendering, then computational load decreases, but design intent may be lost
Solution Approach 1:
The patent applies local quality by preserving geometric details only where they contribute to design intent. The envelope generation process selectively maintains topological features and shape characteristics that are critical for design purposes while simplifying or removing details that do not affect design intent, achieving both computational efficiency and design fidelity
4Device complexity
If gaps and holes are closed in the envelope, then topology is simplified for simulation, but small geometric features may be lost
Solution Approach 1:
The patent uses parameter changes by adjusting the envelope offset distance and other generation parameters to control the level of detail preservation. By carefully selecting these parameters, the system closes gaps and holes to simplify topology for simulation while maintaining sufficient geometric feature accuracy through appropriate parameter tuning
Data Source
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AI summary
The invention notably relates to designing an envelope of a modeled object. The method comprises providing a modeled object that is discretized into a grid of cells, and computing the envelope of the provided modeled object. This forms an improved solution with respect to designing an envelope of a modeled object.