Transit Mode Map Rendering for Route Emphasis
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Solution Overview
Problem
Current mapping and navigation applications lack a comprehensive and efficient transit routing and navigation system, failing to effectively display transit-related information and provide detailed transit directions on mobile devices.
Innovation Solution
An integrated mapping and navigation application with a novel transit browsing mode that emphasizes transit-related features, including transit lines and stations, using vivid colors and dynamic rendering based on zoom levels and incident information, while providing directions for transit legs and walking between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If standard map browsing mode is used to display comprehensive map features, then general navigation information is complete, but transit-related information is not emphasized sufficiently
Solution Approach 1:
The patent applies local quality by creating a transit-specific map rendering mode that selectively emphasizes transit-related features (transit lines, stations, and stops) while de-emphasizing non-transit features. This is achieved through a stylesheet system that applies different visual properties to different map elements based on their relevance to transit navigation, allowing users to clearly see transit information without losing overall map context.
2Loss of information
If multiple transit lines are displayed with different colors and styles, then transit information is comprehensive, but map clutter increases
Solution Approach 1:
The patent uses color changes as a core mechanism to differentiate transit lines while maintaining map readability. Each transit line is rendered with distinct colors and visual styles, allowing users to easily distinguish between different routes. The stylesheet system manages these color assignments systematically, ensuring that multiple lines can be displayed without creating excessive visual clutter.
3Loss of information
If detailed transit information is displayed at all zoom levels, then transit navigation is comprehensive, but performance decreases
Solution Approach 1:
The patent implements dynamics by making the displayed transit information adaptive to the current zoom level. As users zoom in or out, the rendering system dynamically adjusts which transit features are displayed and at what level of detail. This performance optimization is achieved through the stylesheet system that selectively renders features based on scale, ensuring comprehensive transit information is available when needed while maintaining rendering efficiency at various zoom levels.
Data Source
AI summary
Some embodiments provide a mapping application that displays a transit map including a group of lines that each corresponds to at least one transit route and, for each line, a set of transit-related features located along the line. The mapping application receives a selection of a transit line and, in response to the selection, modifies the transit map to emphasize the selected transit line and the set of features located along the selected transit line.