All-in-One Lightweight GIS Platform

GPX is an XML-based file format specifically designed for exchanging GPS data. It is widely used to describe location information, such as routes, tracks, and points of interest (POIs), making it easy to share and transfer data between different GPS devices and software. As an open standard, the GPX format is supported by many applications and devices, such as sports trackers, map software, and navigation systems.

QLR (QGIS Layer Definition File) is a layer definition file used by QGIS (an open source GIS software). QLR files do not store the data source itself, but rather the configuration information of the layer, such as style, symbols, labels, etc.

The Albers Equal-Area Conic Projection is an area-preserving conic projection widely used in geographic information systems (GIS) and cartography.

OSM (Open Street Map) is an open source map dataset created and maintained by a volunteer community. Unlike traditional map data, OSM data is collected by volunteers using various data sources such as GPS devices, aerial images, topographic maps, and public satellite images. Users can use, edit, and distribute this data for free. OSM has global coverage and provides rich geographic data, including streets, buildings, rivers, lakes, mountains, public facilities, and more. At the same time, OSM also provides APIs and various tools to integrate this data into various applications.

SHX (Shape Index) files are a file format in Geographic Information Systems (GIS), mainly used to store the location and size information of all geometric objects in Shapefile files. SHX files are part of the Shapefile file format, a popular GIS data format developed by the Environmental Systems Research Institute (ESRI) to store the geometry and attribute information of geographic locations. SHX files are usually used together with SHP files (master files storing geometry information) and DBF files (dBASE tables storing attribute data), and the three together constitute a complete Shapefile dataset.

TBX (Toolbox File) is a container for organizing and managing geoprocessing tools. TBX can contain multiple geoprocessing tools, as well as related parameters and settings. Toolbox files (.tbx) are used to store and share these toolboxes and the tools in them.

MWS (MapWindow Session) is a session file format used by MapWindow GIS software. MWS files contain information about geospatial data, layer settings, symbolization, and map views. It allows users to save and load GIS projects to restore the state and configuration of maps in different work sessions. MWS files can contain vector data, raster data, styles, and symbol settings, providing GIS users with a convenient way to manage and share geospatial information.

Pseudo Mercator projection is a sphere-based conformal cylindrical projection. It converts longitude and latitude coordinates into plane rectangular coordinates by approximating the earth as a sphere and using a tangent cylindrical projection. It is widely used in global Web map services (such as Google Maps and OpenStreetMap) and supports seamless splicing and layered tile loading.

PCIDSK (PCI Geomatics Database File) is a geospatial data file format developed by PCI Geomatics of Canada, mainly used in the fields of remote sensing and geographic information systems (GIS). The format uses a database-like structure that can store vector and raster data in a single file and is known for its high compatibility with the PCI Geomatics product “Geomatica” software.

ArcGIS is a geographic information system (GIS) software platform developed by ESRI (Environmental Systems Research Institute). It provides a wealth of tools and functions for capturing, managing, analyzing, and displaying geographic data. ArcGIS has a variety of applications, including map making, spatial analysis, geolocation, resource management, environmental planning, and other fields.