Dynamic Vector Map Simplification for Low-Resolution Rendering
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Solution Overview
Problem
Current data visualization maps do not provide effective client-side coordinate or path command manipulation to reduce path complexity and precision, leading to poor performance on low-resolution devices when rendering high-resolution vector graphic data, resulting in a degraded user experience during interactions like zooming.
Innovation Solution
A dynamic reduction of vector graphics command precision is achieved by calculating a scale factor based on the dimensions of the viewport and zoom factor, allowing for the conversion of high-resolution path primitives into simplified commands that can be rendered on low-resolution devices, maintaining image quality and user interaction smoothness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution vector graphic data is used for data visualization maps, then image quality and detail are improved, but rendering performance and loading speed deteriorate on low-resolution devices
Solution Approach 1:
The patent applies dynamic path simplification that adapts the vector graphics data based on the device's resolution capabilities. The system dynamically adjusts path complexity by removing unnecessary points and segments from SVG path commands, transforming high-resolution paths into simplified versions suitable for low-resolution displays. This dynamic adaptation maintains image quality on high-resolution devices while optimizing performance on low-resolution devices.
Solution Approach 2:
The patent changes the parameter of path complexity by modifying the number of points and segments in vector graphics paths. By adjusting the level of detail in path commands based on device resolution, the system optimizes the balance between image quality and rendering performance. The simplification process reduces the number of path points and segments while maintaining visual accuracy on the target display.
2Manufacturing precision
If high-precision path and coordinate data is used in vector maps, then map detail and accuracy are improved, but processing complexity and device requirements worsen
Solution Approach 1:
The patent segments the path data into manageable components by identifying and separating essential path points from redundant ones. The simplification algorithm processes path commands in segments, removing unnecessary intermediate points and segments while preserving the overall path structure and visual accuracy. This segmentation approach reduces processing complexity while maintaining map detail.
Solution Approach 2:
The patent extracts and removes unnecessary path points and segments from high-precision vector data. By identifying and taking out redundant elements that do not contribute to visual accuracy on low-resolution displays, the system reduces processing complexity and data size while maintaining essential map detail and accuracy.
3Loss of information
If high-resolution vector maps are rendered on low-resolution devices, then visual information is preserved, but rendering speed and interactivity deteriorate
Solution Approach 1:
The patent applies preliminary path simplification before rendering the vector map on low-resolution devices. By pre-processing the path data to remove unnecessary complexity in advance, the system ensures that the rendering process operates on optimized data, improving rendering speed and interactivity while preserving essential visual information through intelligent simplification algorithms.
Data Source
AI summary
Example embodiments dynamically generate lower resolution maps from high precision vector for use on desktops. Lower resolution maps are dynamically generated on the client side by decreasing coordinate and path precision.