Truss Drawing Line Extension for Precise Node Center Connections
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Solution Overview
Problem
Design drawings for truss structures often result in positioning errors and low dimensional accuracy due to circular nodes shielding intersection points between lofting line segments, leading to cumbersome and inaccurate manual connections, especially in complex designs.
Innovation Solution
A method and system that automatically ensure all adjacent lofting line segments intersect at the circle centers of their respective nodes by calculating and extending the line segments to these centers, using coordinate and radius data from the design drawing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If circular nodes are used to represent spherical members in design drawings, then the visual representation is clear and intuitive, but the circular nodes shield intersection points between lofting line segments, causing positioning errors and low dimensional accuracy
Solution Approach 1:
The patent segments the circular node into two functional parts: the visible circular boundary for clear representation and the hidden circle center for precise positioning. The intersection point of lofting line segments is determined at the circle center rather than on the circular boundary, allowing the node to serve both visual and precision functions simultaneously.
2Manufacturing precision
If manual connection is used to connect adjacent lofting line segments, then the positioning accuracy can be improved, but the design efficiency becomes very low and the process becomes cumbersome for complex drawings
Solution Approach 1:
The patent implements an automatic connection mechanism where the system itself identifies and connects adjacent lofting line segments through algorithmic processing. The computer automatically determines circle centers, calculates intersection points, and establishes connections without requiring manual intervention, thereby maintaining high accuracy while dramatically improving design efficiency.
Solution Approach 2:
The patent replaces the manual mechanical process of connecting line segments with an automated computational system. The computer uses coordinate data and radius data to automatically perform calculations and establish connections, substituting human manual operations with an efficient algorithmic process that handles complex drawings rapidly and accurately.
3Manufacturing precision
If manual connection is used to connect lofting line segments, then some positioning accuracy can be achieved, but the connection accuracy remains low and errors persist
Solution Approach 1:
The patent employs a feedback mechanism where the system continuously verifies connections by checking whether adjacent lofting line segments correctly intersect at circle centers. The computer processes coordinate and radius data to validate each connection, automatically identifying and correcting positioning errors to ensure high connection accuracy and reliability.
Data Source
AI summary
A method and system for processing a design drawing, an electronic device and a storage medium are disclosed. The method includes: acquiring, from a target application, first coordinate data of a first endpoint, second coordinate data of a second endpoint, first radius data of a first node and second radius data of a second node; obtaining first circle-center coordinate data of the first node according to the first coordinate data, the second coordinate data and the first radius data; obtaining second circle-center coordinate data of the second node according to the first coordinate data, the second coordinate data and the second radius data; and performing a first connection operation on a lofting line segment according to the first circle-center coordinate data and the first coordinate data, and performing a second connection operation on the lofting line segment according to the second circle-center coordinate data and the second coordinate data.