Vector-Based Map Overlay System for Dynamic Census Data Rendering
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Solution Overview
Problem
Existing Geographic Information Systems (GIS) face delays in request processing time, limited geographic coverage, and restricted client-side rendering capabilities, particularly in web-based mapping systems that rely on raster images or Adobe Flash, which hinder interactive polygon rendering and comprehensive data analysis.
Innovation Solution
A geographic overlay system that utilizes a client/server model to stream vector-based map layers directly within the user's browser, employing a Nationwide database of Census geographies for interactive polygon rendering, thematic analysis, and dynamic data retrieval, without requiring non-standard plugins, thus optimizing request/response speed and providing high-resolution maps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If raster-based map images are uploaded to user browser, then geographic mapping is provided, but request processing time increases due to image upload delays
Solution Approach 1:
The patent extracts only the essential geographic data elements needed for rendering maps, rather than transferring complete raster images. By separating map data into discrete, renderable components that can be generated and displayed client-side, the system eliminates the bottleneck of uploading large image files while maintaining comprehensive geographic coverage.
2Area of stationary object
If Adobe Flash-based mapping systems are used, then static SWF files are uploaded, but geographic coverage is limited and processing time increases
Solution Approach 1:
The patent implements dynamic map rendering where the client browser generates and updates map displays in real-time based on user interactions and data queries. Instead of relying on static pre-rendered SWF files with fixed geographic coverage, the system dynamically constructs maps from geographic data elements, allowing unlimited geographic coverage and instant updates without server-side file uploads.
3Adaptability or versatility
If AJAX-based client-side rendering is used, then vector-based points and lines are rendered, but interactive polygon rendering is limited due to memory restrictions
Solution Approach 1:
The patent segments geographic data into discrete, manageable data elements that can be individually processed and rendered. By dividing complex polygon geometries into smaller renderable units and loading them on-demand rather than loading entire datasets into client memory, the system enables interactive polygon rendering while respecting client-side memory constraints.
4Manufacturing precision
If SVG vector-based web GIS systems are used, then high-resolution maps are provided, but non-standard plug-in download is required
Solution Approach 1:
The patent implements a universal mapping system that uses standard web technologies and browser-native rendering capabilities to display high-resolution vector-based maps. By designing the system to work across all modern browsers without requiring proprietary plugins or special software installations, the patent achieves both high map resolution and broad accessibility, making the GIS functionality universally available.
Data Source
AI summary
The present invention embodiments include a geographic overlay system including an information system, a mapping system interface to communicate with a mapping system and a database system including National Census geographic boundaries and data files. The geographic overlay system utilizes a client/server model that streams geographic data from a server system to dynamically render vector-based map layers inside a client browser. The geographic overlay system employs a Nationwide database of Census geographies that may be rendered as interactive point, line or polygon objects over a National base map provided by the mapping system. A database builder interface enables users to build the database and server pages. The present invention embodiments overlay translucent, interactive dynamically generated vector-based polygonal Census boundary map layers over geographical maps from the mapping system. The overlaying vector map layers perform thematic analysis, enable information retrieval, display mouse-over tool-tips and query a dynamic block-level National spatial-relational database.