3D Shape Editing Device Preserving Interference Regions
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Solution Overview
Problem
General users face difficulties in modeling and editing three-dimensional objects, leading to unintended damage to the original shape or function of the objects during free editing of three-dimensional shapes.
Innovation Solution
The development of an editing device and program that restricts editing to prevent unintended changes by ensuring that edited three-dimensional shapes maintain interference regions, thereby preserving the original structure and function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If free editing on three-dimensional shapes is allowed, then ease of operation is improved, but reliability deteriorates due to unintended damage to original shape or function
Solution Approach 1:
The system pre-identifies interference regions between different three-dimensional shapes before editing operations are performed. By calculating and marking these regions in advance, the system prevents editing operations that would cause unintended overlap or interference, thereby protecting the original shape and function while still allowing free editing within safe boundaries.
Solution Approach 2:
The system provides real-time feedback to users about interference regions during the editing process. When a user attempts to edit a three-dimensional shape, the system calculates whether the editing would cause interference with other shapes and provides visual or operational feedback to guide the user's editing actions, balancing editing freedom with shape preservation.
2Reliability
If editing restrictions are imposed to preserve original structure, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The system applies different editing rules to different spatial regions. In interference regions, editing is restricted or requires special confirmation to preserve original shapes. In non-interference regions, full editing freedom is maintained. This localized approach ensures reliability where needed while preserving ease of operation where safe.
Solution Approach 2:
The system introduces an intermediary calculation process that automatically determines whether editing operations are safe. Rather than imposing blanket restrictions, the system acts as an intelligent mediator that evaluates each editing operation against the interference region data and either permits or prevents the operation, providing a balanced solution between preservation and editing freedom.
3Reliability
If interference region calculation is performed for all shape pairs, then reliability is improved, but device complexity increases
Solution Approach 1:
The system segments the set of three-dimensional shapes into groups based on their spatial relationships. Instead of calculating interference regions for all possible shape pairs, the system identifies and processes only relevant pairs that are spatially close or potentially interacting. This segmentation significantly reduces calculation complexity while maintaining reliable interference detection for all critical cases.
Solution Approach 2:
The system performs interference region calculations selectively rather than universally. It calculates interference regions only for shape pairs that are likely to interact based on their positions and sizes, using partial action to reduce computational burden. This approach achieves sufficient reliability for practical purposes without the excessive complexity of calculating all possible interference regions.
Data Source
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AI summary
An editing device for three-dimensional shape data includes: an extraction unit that extracts an interference region between a first three-dimensional shape to be edited and a second three-dimensional shape that interferes with the first three-dimensional shape, out of multiple three-dimensional shapes represented by three-dimensional shape data; and a control unit that controls editing of the first three-dimensional shape so that the interference region extracted by the extraction unit is not lost.