All-in-One Lightweight GIS Platform

Esri GeoEvent Server is an enterprise-level software provided by Esri, designed for real-time processing, analysis, and dissemination of event-based geospatial data streams. It can connect to multiple real-time data sources, perform real-time analysis on event data through filters and processors, and deliver processed results to client applications, feature services, dashboards, or other destinations. This technology is commonly used in smart cities, traffic monitoring, and other scenarios requiring real-time responsiveness, helping users quickly adapt to dynamic changes.

BSB (Nautical Chart Raster Format) is a raster data format primarily used for storing and distributing Raster Navigational Charts (RNC). Originally developed for chart distribution, it has now become one of the standard distribution formats for official raster navigational charts issued by hydrographic offices in various countries. The BSB format adds georeferencing information to scanned paper chart image data, enabling accurate position display on navigation support software. It is characterized by its design specifically tailored for maritime navigation applications.

S57 (Standard for Electronic Navigational Charts) is an international standard developed by the International Hydrographic Organization (IHO) for the exchange and display of electronic nautical chart data, primarily used in marine navigation systems. It standardizes the format, structure, and content of chart data, ensuring interoperability between electronic nautical chart systems from different manufacturers, providing ships with accurate and unified critical navigation information such as water depth, channel, and obstacles. In short, S57 is the "universal language" of electronic nautical charts, ensuring safe and efficient maritime navigation.

DigitalGlobe / Maxar Imagery API is a commercial satellite imagery delivery service and set of APIs provided by Maxar Technologies (formerly DigitalGlobe) in the United States. It is characterized by its ability to deliver sub-meter resolution optical satellite imagery, captured by high-performance Earth observation satellites such as WorldView and GeoEye, through an online API. Users can flexibly search, visualize, and download both the latest and archived imagery, making it a key foundational service for geospatial analysis, decision support, and both commercial and public applications.

Ordnance Survey National Transfer Format (NTF) is a spatial data exchange format developed by the Ordnance Survey (OS) of Great Britain. It is primarily used for the transfer and sharing of cadastral and topographic data. Based on the ISO 8211 standard and employing a binary encoding scheme, it facilitates efficient two-way transfer of national surveying and mapping data between local and central government systems. Its design incorporates three layers—physical file structure, logical model, and application protocol—ensuring the preservation of topological relationships and coordinate system compatibility during data conversion.

RPF (Raster Product Format, U.S. Department of Defense standard) is a standardized data structure established in 1994, serving as the U.S. military's standard for geospatial databases composed of rectangular arrays of pixel values (e.g., digitized maps or images) in compressed or uncompressed forms. Its intended purpose is to manage the design of a series of digital data exchange products, including digital maps, imagery, and other geospatial data for military applications. Designed to be a versatile and adaptable format for raster products, whether compressed or uncompressed, RPF aims to enable applications to directly use data stored in computer-readable RPF formats on exchange media (e.g., CD-ROMs) without requiring further conversion or manipulation. The format is characterized by a hierarchical directory structure, including a catalog file (sometimes referred to as an A.TOC file) and one or more frame directories representing raster data frames.

The Mapillary Map Traces / GPX service is an interface for providing trajectory data accompanying street-level imagery collection, offered by Mapillary. It enables the publication and retrieval of movement paths (traces) corresponding to street-level images captured and uploaded by users as geospatial data. Primarily delivered in standard formats such as GPX, it provides user movement trajectories—from walking, cycling, or driving—as time‑series coordinate data, allowing spatially‑linked analysis and visualization alongside street‑level imagery. These trace data are highly compatible with open‑map ecosystems like OpenStreetMap (OSM) and serve as an important supplementary data source for real‑world road and route information.

DGN (MicroStation Native Format) is a CAD file format developed based on Microsoft's OLE2 file structure, primarily used in 3D, BIM, and GIS industries. Developed by Bentley Systems, this CAD format is designed for recording and exchanging design data, offering a comprehensive data model and multi-layer drafting capabilities while supporting operation across multiple platforms.

LY (Polygon File Format / Stanford Triangle Format) is a file format for three-dimensional data primarily used in 3D scanning and computer graphics. Originally developed at Stanford University, it is characterized by its ability to flexibly describe not only shape information such as point clouds and polygon meshes but also attributes like color, normal vectors, and transparency. With a simple yet highly extensible structure, PLY is widely utilized across research and industrial applications, playing a key role in areas such as 3D modeling, visualization, reverse engineering, and digital preservation of cultural heritage.

USGS EarthExplorer is an official geospatial data search and distribution platform provided by the United States Geological Survey (USGS). It primarily offers a diverse range of remote sensing and terrain data—including satellite imagery, aerial photographs, digital elevation models (DEM), and land cover data—free of charge. EarthExplorer features a web‑based interface and also supports automated access via an Application Programming Interface (API), providing researchers and engineers with an efficient environment for acquiring and processing large‑scale data.