Skeletal Stroke Folding Avoidance in Curved Path Mapping
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Solution Overview
Problem
Skeletal strokes in graphics applications result in undesirable folding or creasing when a straight spine vector artwork is mapped onto a curved destination path with a small radius of curvature, leading to an unsatisfactory appearance.
Innovation Solution
The solution involves identifying a destination path and a set of ribs extending perpendicularly from it, determining a contiguous region where ribs intersect, and adjusting these ribs to prevent crossing, allowing the artwork to be adapted to fit the path without folding or creasing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a straight spine vector artwork is mapped onto a curved destination path with small radius of curvature, then the artwork can be adapted to fit the path, but folding or creasing occurs leading to unsatisfactory appearance
Solution Approach 1:
The spine is divided into multiple segments between ribs, allowing independent adjustment of each segment. This segmentation enables the artwork to conform to curved paths without folding by allowing local deformation of the spine while maintaining overall structure.
Solution Approach 2:
The system dynamically adjusts the spine configuration based on the destination path geometry. The spine segments can be repositioned and reconfigured during the mapping process to adapt to varying curvature radii, transforming a static straight spine into a dynamic structure that prevents folding.
2Manufacturing precision
If ribs are extended perpendicularly from the destination path to define artwork boundaries, then the artwork can be precisely mapped, but ribs may cross each other in regions with small radius of curvature causing folding
Solution Approach 1:
The system performs preliminary detection of potential rib crossings by analyzing the destination path geometry before finalizing the artwork mapping. By identifying regions where ribs would cross (small radius of curvature areas) in advance, the system can preemptively adjust the spine configuration to prevent folding.
Solution Approach 2:
The spine configuration is adjusted locally in regions where rib crossings are detected. Instead of uniformly treating the entire path, the system applies localized modifications to spine segments in specific areas where folding would occur, maintaining precision elsewhere while preventing harmful folding effects.
Data Source
AI summary
Folding avoidance in skeletal stroke application is provided. In some embodiments, folding avoidance in skeletal stroke application includes identifying a destination path for a source artwork and a plurality of ribs extending perpendicularly from the destination path, in which the source artwork is mapped onto the destination path; determining a contiguous region along the destination path including a subset of ribs; in which each of the subset of ribs in the contiguous region crosses another rib in the contiguous region that is not necessarily an adjacent rib; and adjusting each of the subset of ribs in the contiguous region so that each of the ribs no longer crosses another rib in the contiguous region to provide a modified subset of ribs. Accordingly, the source artwork can then be adapted to fit along the destination path using the adjusted ribs.