Non-Link Map Element Rendering via Lane-Relative Positioning
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Solution Overview
Problem
Existing electronic maps present map elements like direction signs and toll booths as icons, lacking vivid and abundant information, reducing user experience.
Innovation Solution
Determine the reference point position and direction of non-link elements relative to adjacent link elements in an electronic map, using lane edge positions to generate drawing data for rendering realistic images of these elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If map elements are presented as simple icons at location points, then the map interface is simple and easy to render, but the user cannot obtain vivid and abundant information
Solution Approach 1:
The patent transitions from 2D icon representation to 3D model representation of map elements. By loading and rendering three-dimensional models of POIs, direction signs, and other map elements, the system provides vivid and abundant information while maintaining efficient rendering through optimized loading strategies.
Solution Approach 2:
The patent determines reference point positions and directions in advance based on the relationship between non-link elements and adjacent link elements. This preliminary calculation of positioning data enables efficient rendering of 3D models without real-time computation overhead during map display.
2Loss of information
If detailed 3D images of map elements are rendered, then vivid and abundant information is provided, but the rendering complexity and processing requirements increase
Solution Approach 1:
The system pre-calculates reference point positions and directions for all non-link elements based on their spatial relationships with adjacent link elements. This preliminary positioning data is stored and reused during rendering, avoiding repeated complex calculations and reducing real-time processing requirements.
Solution Approach 2:
The patent applies different levels of detail and rendering quality to different map elements based on their importance and the user's viewing context. Critical elements like direction signs receive higher precision rendering, while less important elements use optimized lower-detail representations.
Data Source
AI summary
Provided are a method for determining drawing data of a map element, an electronic device, and a non-transitory computer-readable storage medium. The specific implementation scheme includes determining a reference point position of a non-link element according to a relationship between the non-link element and adjacent link elements in an electronic map and based on lane edge positions of the adjacent link elements; determining a direction of the non-link element according to the relationship between the non-link element and the adjacent link elements; and determining drawing data of the non-link element according to the reference point position and the direction of the non-link element, where the drawing data is used for drawing and rendering an image of the non-link element in a link when the drawing data is loaded by a map interface.