Alidade

Alidade is a comprehensive open-source Web-GIS platform designed for advanced geospatial applications. This project features a robust set of tools including PostGIS vector tiles, high-resolution satellite imagery, and 3D models integrated seamlessly onto terrain. Users can create interactive maps without requiring any API keys, simplifying accessibility and usability for developers.

Key Features

• Dynamic Map Management: The mapping system utilizes a single JSON document to manage map changes, allowing for effortless editing and dynamic layer management. This approach supports extensive undo capabilities and seamless layer swaps without data loss.

• Data Integration: Easily import diverse geospatial datasets such as GeoJSON, zipped Shapefiles, GeoPackages, KML, and GPX files. Data is automatically reprojected and served as vector tiles through a straightforward API interface.

• Comprehensive Imagery Support: GeoTIFF files are transformed into Cloud-Optimised GeoTIFFs for rapid access and on-demand tiling based on user-defined rules, such as the latest or highest-quality imagery available.

• Advanced Symbology and Filtering: Utilize per-layer scale ranges with graduated and categorized symbology options. Implement complex filters that enhance data visualization and performance.

• Interactive Features: Users can click on map features to reveal attributes and interact with imagery, while the attribute table allows for comprehensive data management, including searching and sorting.

• Multi-Dimensional Projections: Support for 2D, 2.5D, and fully 3D visualizations, enabling real globe representations and realistic terrain modeling with OpenStreetMap buildings accurately extruded.

• 3D Models and Live Assets: Position 3D models accurately with real-world dimensions and utilize a live asset layer for real-time data tracking, enhancing applications such as fleet management.

• Integrated Drawing Tools: Engage in geodesic measurements and vertex editing with export capabilities to multiple formats like GeoJSON, KML, GPX, CSV, or WKT.

• Additional Functionality: Add features like graticules, UTM grids, overview maps, and customizable bookmarks, enriching the user experience and increasing map usability.

Visual Overview

Styled Layers: Markers, outlines, and legends based on loaded data.

Interactive Feature Identification: Access feature attributes effortlessly.

Experience a genuine globe visualization.

Alidade not only provides powerful mapping capabilities but also emphasizes user-friendly design with no API keys required. Its architecture supports easy future enhancements and provides an extensive set of documentation for both users and developers, including deployment guides and design notes.

For further exploration, visit the live demo to experience Alidade's functionalities in action.