3D Shape Editing with Protected and Editable Ranges
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Solution Overview
Problem
General users face challenges in generating three-dimensional shape data through editing, which can impair the original shape, necessitating a solution to edit within a range that does not destroy the original three-dimensional shape data.
Innovation Solution
An editing apparatus and program that set a protection target range and an editable range using three-dimensional position information, along with control conditions to control edits within the editable range, preventing changes to the protection target range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users edit three-dimensional shape data freely, then ease of operation is improved, but manufacturing precision deteriorates because the original shape may be impaired
Solution Approach 1:
The three-dimensional shape data is segmented into protected ranges and editable ranges through the range setting unit. This segmentation allows users to edit specific portions while preserving critical sections, resolving the contradiction between editing freedom and shape integrity.
Solution Approach 2:
Different quality attributes are applied to different regions of the three-dimensional shape data. The protection attribute and control conditions are locally applied to specific ranges, enabling selective editing where some regions maintain strict integrity while others allow flexibility.
2Manufacturing precision
If protection ranges are set to preserve original shape, then manufacturing precision is improved, but ease of operation deteriorates due to editing restrictions
Solution Approach 1:
The system dynamically adjusts editing capabilities based on the control conditions set for each range. The edit control unit dynamically permits or restricts editing operations according to the specific conditions (minimum distance, maximum distance, direction, angle), providing flexibility within constraints rather than rigid prohibition.
Solution Approach 2:
Instead of binary protected/editable classification, the system uses parameter-based control conditions (distances, angles, directions) that define editable boundaries. This allows precise control over what modifications are acceptable while maintaining shape integrity.
3Reliability
If control conditions are enforced to prevent shape impairment, then reliability is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The range setting unit and control condition setting unit establish protection attributes and editing constraints before the actual editing process begins. This preliminary configuration ensures that subsequent editing operations automatically comply with safety requirements, maintaining reliability without requiring complex real-time monitoring.
Solution Approach 2:
The edit control unit continuously monitors editing operations against the predetermined control conditions and provides feedback by permitting or blocking specific edits. This feedback mechanism ensures shape integrity is maintained while keeping the control system manageable through clear pass/fail decisions.
Data Source
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AI summary
An editing apparatus 10 of three-dimensional shape data sets at least one of a protection target range and an editable range of a three-dimensional shape represented by three-dimensional shape data, and sets a control condition for controlling edit in the editable range so as not to edit the protection target range in editing the editable range.