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SLPK (Scene Layer Package) file format is a file format used to store and share 3D scene data. The SLPK file is a packaging format in ArcGIS Pro software, which is used to package 3D scene data and related resources into a single file for easy sharing and transmission on the ArcGIS platform.

Bentley Systems is a world-leading infrastructure engineering software company. Its GIS solutions are centered on the deep integration of “BIM+GIS” and provide full life cycle management tools for smart cities, transportation, energy, water conservancy and other fields. Bentley GIS product matrix includes MicroStation (3D modeling engine), ProjectWise (collaborative work platform), ContextCapture (real scene modeling), OpenRoads/OpenRail (transportation infrastructure design), etc. Its core technologies cover the construction of 2D and 3D integrated data models, real-time collaborative updates in the cloud, integrated processing of multi-source data (CAD/BIM/GIS/remote sensing), spatial analysis decision support, and full life cycle data management system.

MrSID (Multiresolution Seamless Image Database) is a multiresolution seamless image database technology based on wavelet transform. It achieves efficient storage and fast access to raster data through layered compression.

VTPK (Vector Tile Package) is a vector tile data format proposed by Esri. It is built based on vector data compression and slicing technology. It realizes efficient storage and transmission by decomposing geospatial data into multi-level pyramid structured vector tiles (PBF format). Its core features include multi-resolution support, vector data-based compression algorithm, cross-platform compatibility and offline use capability. It is suitable for mobile navigation, geographic information collection, outdoor survey and other scenarios.

Revit files are design files created using Revit, a BIM (Building Information Modeling) software developed by Autodesk. It is unique in its ability to integrate and manage 3D models and design information used in the fields of architecture, structure, and engineering (MEP). It is widely used in the construction industry around the world and is a core component of the BIM workflow that covers the entire life cycle from building design to construction and maintenance.

Esri Grid is a type of raster data format developed by the Environmental Systems Research Institute (ESRI) in the United States. It is a format that is mainly used as a standard in the ArcGIS product group and is used to divide geospatial information into a grid and manage it. Numerical information (elevation value, classification code, etc.) is stored in each cell, and it is used in a wide range of GIS (geographic information system) applications such as topographic analysis, land use classification, and climate data analysis.

TPK (Tile Package) file is a file format for packaging raster or vector map tiles used by ESRI’s ArcGIS platform. It is mainly used for viewing maps offline or embedding maps in applications, and the extension is “.tpk”. Tiles are a collection of images that divide a map or aerial photo into different zoom levels, and TPK is a single compressed file containing all these images.

LERC (Limited Error Raster Compression) is a lossless and lossy compression algorithm for raster data developed by ESRI. It is mainly used in GIS and remote sensing fields, and is optimized for raster data with continuous floating point or integer values. Unlike other image compression formats (JPEG, PNG, etc.), the goal of LERC is to “maximize the compression ratio while maintaining spatial accuracy.”

JPEG 2000 is one of the international standards for image compression and is an improvement on the traditional JPEG (ISO/IEC 10918). It was standardized as ISO/IEC 15444 in 2000 and achieves high compression ratio and high image quality by adopting wavelet compression technology.

WB files are a special format used in spatial data processing software to support web-based spatial slicing services. This format is particularly used to save and publish terrain data or image data after slicing. As a form of integrated management file, it enables efficient loading and online publishing of data. As a self-contained data package containing the hierarchical structure and metadata of terrain or image slices, WB files are widely used in lightweight deployment scenarios.