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 GPL'ed), image processing and geographic information system (GIS).
display commands:
| d.ask | Prompts the user to select a GRASS data base file from among files displayed in a menu on the graphics monitor. |
| 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.colors | Allows the user to interactively change the color table of a raster map layer displayed on the graphics monitor. |
| 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.extend | Sets window region so that all currently displayed raster and vector maps can be shown in a monitor. |
| d.extract | Selects and extracts vectors with mouse into new vector map. |
| d.font.freetype | Selects the font in which text will be displayed on the user's graphics monitor. |
| d.font | Selects the font in which text will be displayed on the user's graphics monitor. |
| d.frame | Manages display frames on the user's graphics monitor. |
| 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.m | Display manager for GRASS |
| d.mapgraph | Generates and displays simple graphics on map layers drawn in the active graphics monitor display frame. |
| d.measure | Measures the lengths and areas of features drawn by the user in the active display frame on the graphics monitor. |
| d.menu | Creates and displays a menu within the active frame on the graphics monitor. |
| d.mon | To establish and control use of a graphics display monitor. |
| d.monsize | Selects/starts specified monitor at specified size |
| d.mvmon | Moves displayed maps to another monitor |
| d.nviz | Creates fly-through script to run in NVIZ. |
| d.out.file | Saves the contents of the active display monitor to a graphics file. |
| d.out.gpsdrive | Export display monitor to a GpsDrive compatible backdrop image |
| d.out.png | Saves active display monitor to PNG file in home directory |
| 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 | Interactive profile plotting utility with optional output. |
| 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 and overlays raster map layers in the active display frame on the graphics monitor. |
| 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.redraw | Redraws the current display frame in the GRASS monitor |
| d.resize | Resizes active display monitor |
| d.rgb | Displays three user-specified raster map layers as red, green, and blue overlays in the active graphics frame. |
| d.rhumbline | Displays the rhumbline joining two user-specified points, in the active frame on the user's graphics monitor. |
| d.save | Creates a list of commands for recreating screen graphics. |
| d.shadedmap | Drapes a color raster over a shaded relief map using d.his |
| d.slide.show | Slide show of GRASS raster/vector maps. |
| d.split | Divides active display into two frames & displays maps/executes commands in each frame. |
| d.text.freetype | Draws text in the active display frame on the graphics monitor using the current font. |
| d.text | Draws text in the active display frame on the graphics monitor using the current font. |
| 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 vector data in the active frame on the graphics monitor. |
| d.vect.thematic | Displays thematic vectormap |
| d.what.rast | Allows the user to interactively query the category contents of multiple raster map layers at user specified locations within the current geographic region. |
| d.what.vect | Allows the user to interactively query a vector map layer at user-selected locations within the current geographic region. |
| d.where | Identifies the geographic coordinates associated with point locations in the active frame on the graphics monitor. |
| d.zoom | Allows the user to change the current geographic region settings interactively, with a mouse. |
Help Index | Full Index
© 2003-2008 GRASS Development Team
