Drawing Region Attribute Assignment via Path Intersection Analysis
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Solution Overview
Problem
Existing drawing software lacks an efficient method to handle and maintain consistency of attributes, such as color, across intersections and edits of paths in a drawing, requiring users to perform complex workarounds to color intersections and maintain attribute consistency.
Innovation Solution
A process is implemented to analyze and assign colors to modified regions by comparing previous and current regions, using identifiers, geometric attributes, and context entries to ensure consistent color assignment across modifications, including additions, deletions, and truncations of paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users manually create separate paths to color intersections, then color assignment is achieved, but operation complexity increases significantly
Solution Approach 1:
The system automatically identifies and colors intersecting regions without requiring manual user intervention. The attribute assignment process is self-executing through algorithmic detection of path intersections and automatic propagation of attributes to resulting regions, eliminating the need for users to manually create separate paths.
Solution Approach 2:
The manual mechanical process of creating separate paths and filling them with colors is replaced by an automated computational system. The system uses algorithms to detect intersections, calculate resulting regions, and assign attributes automatically, substituting manual geometric operations with automated processing.
2Productivity
If paths are modified in a drawing, then drawing updates are achieved, but attribute consistency across regions is lost
Solution Approach 1:
The system implements feedback mechanisms to track and maintain attribute consistency. When paths are modified, the system detects the changes, identifies affected regions, and automatically adjusts attribute assignments to maintain consistency. The feedback loop ensures that attribute propagation continues until consistency is achieved.
Solution Approach 2:
The system performs preliminary analysis of path modifications before finalizing attribute assignments. It pre-calculates the impact of modifications on intersecting regions and prepares attribute propagation plans in advance, ensuring that attribute consistency is maintained from the start of the modification process.
3Device complexity
If multiple paths are used to define regions, then drawing complexity is reduced, but attribute assignment becomes complicated
Solution Approach 1:
The system segments the complex attribute assignment problem into manageable steps: detecting path intersections, calculating resulting regions, assigning attributes to regions, and propagating attributes consistently. This segmentation transforms the complicated overall task into simpler sequential operations that are easier to implement and understand.
Data Source
AI summary
Techniques for assigning a region attribute to a region in a drawing are disclosed. One technique includes editing the drawing to define a current region, associating the current region with a previous region having a previous region attribute, and assigning the previous region attribute to the current region. Another technique includes deriving a previous path attribute and a relation for a previous path, editing the drawing to define a current set of paths having current regions, and assigning the previous path attribute to at least one current region based on the relation of the previous path.