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GeoPDF (Geospatial PDF)

GeoPDF embeds geographic spatial information (such as latitude and longitude coordinates and coordinate reference systems) in standard PDF files, enabling ordinary PDF readers (such as Adobe Reader) to support geographic location viewing, map navigation, and basic geographic analysis functions, combining the portability of PDF with the data analysis capabilities of GIS.

2025-11-05 14:07:10

COLLADA / DAE (Digital Asset Exchange)

COLLADA / DAE is an open standard 3D data format designed for the exchange of 3D models and digital assets. Managed by the Khronos Group, it is XML-based and can describe 3D geometry, materials, textures, animations, scene structures, and more. It is widely used as a "neutral exchange format" enabling data interoperability between different software applications in game engines, 3D CG production tools, BIM, and the 3D GIS field.

2026-02-27 15:12:56

LandXML (Civil Engineering Data Exchange Format)

LandXML is an XML-based civil engineering data exchange format primarily used for sharing infrastructure design data such as roads, terrain, and land parcels between different CAD platforms. It uses standardized data structures to transfer geometric information (such as surfaces and COGO points) and attribute data between software like Autodesk Civil 3D. It supports specialized parameters such as northing/easting/elevation coordinate systems and station number disconnection. This format is particularly suitable for terrain processing and survey data import, effectively reducing model conversion time and maintaining data integrity.

2025-11-05 13:52:11

NITF (National Imagery Transmission Format)

NITF (National Imagery Transmission Format) is a specialized imagery data format developed by the United States Department of Defense, primarily for the storage and transmission of high-definition grayscale and color imagery for military and intelligence purposes. This format supports multiple compression methods (such as JPEG and JPEG2000) and integrates text, graphics, and metadata into a single file, conforming to the ISO/IEC 15444-1 standard. Features include high-precision geographic coordinate support (via IGELO or RPC metadata) and cross-platform compatibility (parsable with tools such as GDAL), making it widely used for satellite imagery, aerial photography, and government data exchange.

2025-11-05 14:00:02

OBJ (Wavefront 3D Model Format)

OBJ (Wavefront 3D Model Format, can include geographic coordinates) is a plain text 3D format developed by Wavefront Technologies. It stores geometric information (vertices, normals, UV coordinates) and polygonal face data, and supports referencing textures and lighting properties through external .mtl material files. Its openness and cross-platform compatibility make it a universal intermediate format in fields such as 3D modeling, game development, and 3D printing. However, it requires additional files to define georeferencing and does not support animation or complex scene data.

2026-02-27 15:07:23

CIB (Controlled Image Base)

CIB (Controlled Image Base) file format is a format used in ArcGIS for storing and managing raster data, typically employed alongside geodatabases as part of raster datasets, mosaic datasets, or raster catalogs. It defines the storage method for pixels, such as the number of rows, columns, and bands, serving as a native format for internal data exchange and management within the ArcGIS ecosystem. For more general image processing, common formats such as JPEG, PNG, and BMP may be more suitable.

2025-12-05 15:14:00

Esri Spatial Analysis / Geometry API

ESRI Spatial Analysis is the core spatial analysis toolkit within the ArcGIS platform, supporting advanced spatial modeling techniques such as terrain modeling, location analysis, pattern recognition, and change detection. The Geometry API provides geometric object processing capabilities, including point/line/polygon operations, spatial relationship analysis, and geometric calculations, with support for standard formats such as GeoJSON and WKT. Both are integrated into ArcGIS Pro and the Python API, require specific licenses (such as a Spatial Analyst license), and it is recommended to migrate from ArcGIS Desktop to ArcGIS Pro for use.

2025-12-29 13:48:22

GeoVRML

GeoVRML (Geographic Virtual Reality Modeling Language) is an extension of VRML (Virtual Reality Modeling Language) designed specifically for the 3D visualization of geospatial data. It uses standardized tags to describe terrain, coordinate systems, and geographic objects, enabling the sharing and interaction of 3D geographic scenes over the internet. It is commonly used for virtual simulation in fields such as Digital Earth and urban planning.

2025-11-05 14:03:13

DRG (Digital Raster Graphic)

DRG (Digital Raster Graphic) is a raster data format created by scanning paper topographic maps at high resolution and adding georeferencing information. Primarily produced by the United States Geological Survey (USGS) through digitization of topographic maps, it preserves map information such as contour lines, roads, hydrography, and administrative boundaries as images. Since DRG contains geographic coordinate information, it can be overlaid with other geographic data in GIS and is widely used as base maps or reference maps.

2026-03-07 14:06:22

DOQ (Digital Orthophoto Quadrangle)

DOQ (Digital Orthophoto Quadrangle) is orthorectified aerial photograph data created in the United States. Primarily provided by the United States Geological Survey (USGS), it corrects distortions caused by terrain relief and camera tilt in aerial photographs, allowing it to be used as image data with the same coordinate accuracy as maps. DOQs are typically created for areas corresponding to quarter sections of 1:24,000 scale topographic maps (Quadrangles) and are characterized by their ability to accurately represent features such as roads, rivers, buildings, and vegetation based on actual geographic coordinates. Therefore, they are widely used as foundational data in diverse GIS applications including map creation, urban planning, and land use analysis.

2026-03-07 14:36:31
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