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Whitebox Geospatial Analysis Tools (GAT) is an open-source and cross-platform Geographic information system (GIS) and remote sensing software package that is distributed under the GNU General Public License. It has been developed by the members of the University of Guelph (Centre for Hydrogeomatics ) and is intended for advanced geospatial analysis and data visualization in research and education settings. The package features a friendly graphical user interface (GUI) with help and documentation built into the dialog boxes for each of the more than 410 analysis tools. Users are also able to access extensive off-line and online help resources. The Whitebox GAT project started as a replacement for the Terrain Analysis System (TAS), a geospatial analysis software package written by John Lindsay. The current release support raster and vector (shapefile) data structures. There are also extensive functionality for processing laser scanner (LiDAR) data contained with LAS files. Whitebox GAT is extendible. Users are able to create and add custom tools or plugins using any JVM language. The software also allows scripting using the programming languages Groovy, JavaScript, and Python. == Analysis tools == Whitebox GAT contains more than 385 tools to perform spatial analysis on raster data sets. The following is an incomplete list of some of the more commonly used tools: *''GIS tools:'' Cost-distance analysis, buffer, distance operations, weighted overlays, multi-criteria evaluation, reclass, area analysis, clumping *''Image processing tools:'' k-means classification, numerous spatial filters, image mosaicing, NDVI, resampling, contrast enhancement *''Hydrology tools:'' DEM preprocessing tools, flow direction and accumulation (D8, Rho8, Dinf, and FD8 algorithms), mass flux analysis, watershed extraction *''Terrain analysis tools:'' surface derivatives (slope, aspect, and curvatures), hillshading, wetness index, relative stream power index, relative landscape position indices *''LiDAR tools:'' IDW interpolation, nearest neighbour interpolation, point density, removal of off-terrain objects (non-ground points) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Whitebox Geospatial Analysis Tools」の詳細全文を読む スポンサード リンク
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