GRASS GIS 8.3.dev Reference Manual
Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.
This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPLed), image processing and geographic information system (GIS).
Go to raster introduction | topicsRaster commands:
| r.blend | Blends color components of two raster maps by a given ratio. |
| r.buffer.lowmem | Creates a raster map showing buffer zones surrounding cells that contain non-NULL category values. |
| r.colors.stddev | Sets color rules based on stddev from a raster map's mean value. |
| r.drain | Traces a flow through an elevation model or cost surface on a raster map. |
| r.fillnulls | Fills no-data areas in raster maps using spline interpolation. |
| r.grow | Generates a raster map layer with contiguous areas grown by one cell. |
| r.import | Imports raster data into a GRASS raster map using GDAL library and reprojects on the fly. |
| r.in.aster | Georeference, rectify, and import Terra-ASTER imagery and relative DEMs using gdalwarp. |
| r.in.srtm | Imports SRTM HGT files into raster map. |
| r.in.wms | Downloads and imports data from OGC WMS and OGC WMTS web mapping servers. |
| r.mapcalc.simple | Calculates a new raster map from a simple r.mapcalc expression. |
| r.mask | Creates a MASK for limiting raster operation. |
| r.out.xyz | Exports a raster map to a text file as x,y,z values based on cell centers. |
| r.pack | Exports a raster map as GRASS GIS specific archive file |
| r.plane | Creates raster plane map given dip (inclination), aspect (azimuth) and one point. |
| r.reclass.area | Reclasses a raster map greater or less than user specified area size (in hectares). |
| r.rgb | Splits a raster map into red, green and blue maps. |
| r.semantic.label | Manages semantic label information assigned to a single raster map or to a list of raster maps. |
| r.shade | Drapes a color raster over an shaded relief or aspect map. |
| r.tileset | Produces tilings of the source projection for use in the destination region and projection. |
| r.unpack | Imports a GRASS GIS specific raster archive file (packed with r.pack) as a raster map |
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© 2003-2023 GRASS Development Team, GRASS GIS 8.3.dev Reference Manual