
Geographic Resources Analysis Support System, commonly referred to as GRASS, 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 back to help overview| d.barscale | Displays a barscale on the graphics monitor. |
| d.colorlist | Output a list of all available display colors with a configurable separator (default is comma). |
| d.colortable | Displays the color table associated with a raster map layer. |
| d.correlate | Prints a graph of the correlation between data layers (in pairs). |
| d.erase | Erase the contents of the active display frame with user defined color |
| d.font | Selects the font in which text will be displayed on the user's graphics monitor. |
| d.fontlist | Lists the available fonts. |
| d.geodesic | Displays a geodesic line, tracing the shortest distance between two geographic points along a great circle, in a longitude/latitude data set. |
| d.graph | Program for generating and displaying simple graphics on the display monitor. |
| d.grid | Overlays a user-specified grid in the active display frame on the graphics monitor. |
| d.his | Displays the result obtained by combining hue, intensity, and saturation (his) values from user-specified input raster map layers. |
| d.histogram | Displays a histogram in the form of a pie or bar chart for a user-specified raster map. |
| d.info | Display information about the active display monitor |
| d.labels | Displays text labels (created with v.label) to the active frame on the graphics monitor. |
| d.legend | Displays a legend for a raster map in the active frame of the graphics monitor. |
| d.linegraph | Generates and displays simple line graphs in the active graphics monitor display frame. |
| d.nviz | Creates fly-through script to run in NVIZ. |
| d.path | Finds shortest path for selected starting and ending node. |
| d.polar | Draws polar diagram of angle map such as aspect or flow directions |
| d.profile | Plots profile of a transect. |
| d.rast.arrow | Draws arrows representing cell aspect direction for a raster map containing aspect data. |
| d.rast.edit | Interactively edit cell values in a raster map. |
| d.rast | Displays user-specified raster map in the active graphics frame. |
| d.rast.leg | Displays a raster map and its legend on a graphics window |
| d.rast.num | Overlays cell category values on a raster map layer displayed to the graphics monitor. |
| d.rgb | Displays three user-specified raster maps as red, green, and blue overlays in the active graphics frame. |
| d.rhumbline | Displays the rhumbline joining two longitude/latitude coordinates. |
| d.shadedmap | Drapes a color raster over a shaded relief map using d.his |
| d.text | Draws text in the active display frame on the graphics monitor using the current font. |
| d.thematic.area | Displays a thematic vector area map in the active frame on the graphics monitor. |
| d.title | Create a TITLE for a raster map in a form suitable for display with d.text. |
| d.vect.chart | Displays charts of vector data in the active frame on the graphics monitor. |
| d.vect | Displays user-specified vector map in the active graphics frame. |
| d.vect.thematic | Displays thematic vector map |
| d.where | Identifies the geographic coordinates associated with point locations given in display coordinates. |
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