GRASS GIS 6.4.2 Reference Manual¶
Geographic Resources Analysis Support System, commonly referred to as
GRASS, is a <a
href="
http://en.wikipedia.org/wiki/Geographic_information_system">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). Go back to help overview
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 | 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 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.redraw | Redraws the current display frame in the GRASS monitor
| d.resize | Resizes active display 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 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.frame | Split the display into subframes.
| d.split | Divides active display into two frames & displays
maps/executes commands in each frame.
| 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.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.
Full Index
© 2003-2011 GRASS Development Team