Vector Path Segment Editing With Joint-Based Continuity
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Solution Overview
Problem
Conventional vector object editing techniques break the continuous path structure when editing individual segments, leading to visual artifacts and loss of mathematical functionality.
Innovation Solution
A vector object editing module that allows individual segments to be edited separately while maintaining path continuity by adding new anchor points and generating joints between segments, preserving the underlying mathematical definition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional techniques break the path to edit individual segments, then segment editability is improved, but path continuity and visual quality deteriorate
Solution Approach 1:
The invention divides the path into editable segments while maintaining the overall path structure. Each segment can be independently selected and modified through anchor point manipulation, yet the segments remain connected as part of a continuous path. This segmentation enables individual segment editing without breaking the path, resolving the contradiction between editability and continuity.
Solution Approach 2:
The invention introduces joint objects as intermediaries between path segments. These joints maintain the visual continuity and mathematical relationship between segments while allowing independent editing of each segment. The joint acts as a mediator that preserves path integrity even when segments are modified separately, solving the contradiction between segment independence and path continuity.
2Reliability
If conventional techniques apply changes to the entire path, then path continuity is maintained, but individual segment editing capability is lost
Solution Approach 1:
The invention enables different visual and mathematical properties to be applied to different segments of the path while maintaining overall continuity. Each segment can have its own anchor points, control points, and visual characteristics (such as stroke width or color), allowing localized editing without affecting the entire path. This local quality approach maintains path continuity while providing versatile individual segment editing capability.
3Ease of operation
If the path is broken into separate segments for editing, then individual segment control is improved, but visual artifacts and loss of mathematical structure occur
Solution Approach 1:
Joint objects serve as mathematical intermediaries that preserve the continuous path structure between segments. These joints maintain the underlying mathematical definition (such as Bezier curve continuity) while allowing independent segment control. The joint ensures that visual artifacts are avoided by maintaining proper mathematical relationships between segments, resolving the contradiction between individual control and visual quality.
Solution Approach 2:
Instead of breaking the path into separate independent objects, the invention inverts the approach by maintaining the path as a continuous mathematical structure while enabling independent segment selection and editing. The segments remain mathematically connected through joints, but can be independently manipulated through anchor point editing. This inversion preserves both individual segment control and visual quality.
Data Source
AI summary
Vector object path segment editing techniques are described that retain edibility of a path while supporting editing of a segment included within the path, individually and separately, without editing other segments of path. A vector object editing module first retrieves information on segments included in a path of a vector object. The vector object editing module then renders a selected segment separately from an adjacent segment based on the selected segment model. An editing operation is then applied to the selected segment as specified via the user interface, e.g., to change color, width, or other display characteristic. The vector object editing module then generates a joint between the edited segment and the adjacent segment to provide a transition between the segments that mimics inclusion as a single path that contains those segments.