GPS Route Tracking and Visualization

Dawarich is a self-hosted location history manager and travel journaling platform. It functions as a personal travel archive that collects GPS coordinates and movement data, providing a private alternative to proprietary tracking services. The system utilizes a PostgreSQL geospatial database to store coordinates, visits, and custom geofence boundaries. The project distinguishes itself as a geospatial data converter and visualization tool, capable of transforming location history between formats such as GPX, KML, and GeoJSON. It allows users to organize GPS tracks and geotagged photos into nam

react-native-maps is a cross-platform map component and visualization library for embedding interactive maps within mobile applications on iOS and Android. It provides a declarative interface for managing geospatial user interfaces, allowing for the rendering of geographical data and location-based features. The library enables the visualization of spatial data through the placement of markers, the creation of custom callouts, and the drawing of polylines and polygons as map overlays. It supports interactive map navigation, including the ability to animate map regions and customize the visual

react-native-maps is a cross-platform mobile map component for iOS and Android that renders interactive geographic data and markers. It provides a native map view and viewport controller to manage camera movement, zoom levels, and coordinate-based animations on mobile devices. The project includes a GeoJSON map renderer for visualizing complex geographic features and an interactive map overlay library for drawing polylines, polygons, and heatmaps. It supports integration with both Google Maps and Apple Maps, allowing developers to switch between providers or apply cloud-based styling and cust

Cobe is a WebGL globe library designed for interactive 3D geographic data visualization. It functions as a canvas-based map component that renders a world map, allowing for the plotting of latitude and longitude coordinates via markers and connecting arcs. The library distinguishes itself by linking standard HTML elements to 3D coordinates using CSS anchor positioning. This integration enables the attachment of DOM elements, such as labels and tooltips, directly to markers and arcs on the sphere. The system covers geographic data plotting and network connection mapping, utilizing automated r

react-map-gl is a library of reusable components and hooks for embedding high-performance WebGL map visualizations within React applications. It provides a declarative wrapper for Mapbox GL JS, synchronizing the map state and styles with a component-based state management system. The toolkit enables the rendering of complex 2D and 3D geospatial data visualizations on map layers. It includes a framework for developing custom map components and specialized user interface elements using shared context and dedicated hooks. The library manages interactive map integration and geospatial data visua

X-Track is a firmware project for an embedded bicycle computer that combines GPS-based speed and ride metrics with offline map navigation. It functions as a GPS bicycle speedometer, displaying speed, distance, altitude, and other ride data on a handlebar-mounted screen, while also serving as an offline map viewer that renders locally stored map tiles without an internet connection. The project distinguishes itself by including a firmware emulator that runs the embedded code on a PC, enabling development and testing without physical hardware. It also provides GPS-based clock calibration to aut

OsmAnd is a mobile navigation application and vector map viewer that uses OpenStreetMap data to provide offline map access, turn-by-turn routing, and geospatial tools. It functions as a mobile routing engine and a GPX track recorder, allowing users to navigate and record movement without an active internet connection. The project integrates a mobile interface for contributing to the OpenStreetMap project, enabling users to report map errors and add new points of interest directly from their devices. It also includes a system for visualizing satellite imagery and custom tile overlays on top of

Folium is a Python library that builds interactive Leaflet.js maps directly from Python data structures, enabling geographic data visualization in Jupyter notebooks or as standalone HTML pages. It creates maps centered on given coordinates with configurable zoom, tiles, and dimensions, and supports embedding those maps inside web routes for serving in browsers. The library provides a comprehensive set of tools for data-driven map creation, including choropleth maps that bind tabular data to geographic geometries, colormap application to markers and polygons, and GeoJSON data overlay and visua

This project is a utility library for the Google Maps SDK for Android, providing a suite of specialized tools for rendering geospatial data, calculating spherical geometry, and visualizing map markers and heatmaps. It serves as a helper collection to handle complex geospatial tasks within Android applications. The library features a marker clustering tool to group nearby markers into single icons and a map data visualizer for generating heatmaps based on the intensity and distribution of geographic points. It also includes a polyline encoding tool for compressing coordinate sequences into com

This project is an administrative GIS toolset that provides a comprehensive dataset of China's administrative divisions, including provinces, cities, districts, and townships. It functions as a coordinate system transformer and a boundary converter for transforming geographic data into standard formats. The toolset distinguishes itself through the ability to convert administrative boundary data between CSV, GeoJSON, Shapefiles, and SQL. It includes specialized utilities for coordinate system transformation between GCJ-02, BD-09, WGS-84, and CGCS2000 standards to ensure accuracy across differe

Aves is an Android media gallery application used for browsing and organizing images and videos. It functions as a multi-purpose tool that combines gallery browsing with a bulk media renamer, an EXIF metadata editor, a GPS media map viewer, and a privacy-focused media vault. The application distinguishes itself through advanced metadata handling, allowing users to modify binary headers to update timestamps and location tags. It features a dynamic pattern-based renaming engine that uses file metadata and cryptographic hashes to update filenames in bulk. Additionally, it provides a secure stora