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GRASS GIS 7.2.1 Reference Manual

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 to temporal introduction | topics

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Temporal commands

t.connect Prints/sets general temporal GIS database connection for current mapset.
t.create Creates a space time dataset.
t.info Lists information about space time datasets and maps.
t.list Lists space time datasets and maps registered in the temporal database.
t.merge Merges several space time datasets into a single space time dataset.
t.rast.accdetect Detects accumulation patterns in temporally accumulated space time raster datasets created by t.rast.accumulate.
t.rast.accumulate Computes cyclic accumulations of a space time raster dataset.
t.rast.aggregate.ds Aggregates data of an existing space time raster dataset using the time intervals of a second space time dataset.
t.rast.aggregate Aggregates temporally the maps of a space time raster dataset by a user defined granularity.
t.rast.algebra Apply temporal and spatial operations on space time raster datasets using temporal raster algebra.
t.rast.colors Creates/modifies the color table associated with each raster map of the space time raster dataset.
t.rast.contour Produces a space time vector dataset of specified contours from a space time raster dataset.
t.rast.export Exports space time raster dataset.
t.rast.extract Extracts a subset of a space time raster datasets.
t.rast.gapfill Replaces gaps in a space time raster dataset with interpolated raster maps.
t.rast.import Imports space time raster dataset.
t.rast.list Lists registered maps of a space time raster dataset.
t.rast.mapcalc Performs spatio-temporal mapcalc expressions on temporally sampled maps of space time raster datasets.
t.rast.neighbors Performs a neighborhood analysis for each map in a space time raster dataset.
t.rast.out.vtk Exports space time raster dataset as VTK time series.
t.rast.series Performs different aggregation algorithms from r.series on all or a subset of raster maps in a space time raster dataset.
t.rast.to.rast3 Converts a space time raster dataset into a 3D raster map.
t.rast.to.vect Converts a space time raster dataset into a space time vector dataset
t.rast.univar Calculates univariate statistics from the non-null cells for each registered raster map of a space time raster dataset.
t.rast.what Sample a space time raster dataset at specific vector point coordinates and write the output to stdout using different layouts
t.rast3d.algebra Apply temporal and spatial operations on space time 3D raster datasets using temporal 3D raster algebra.
t.rast3d.extract Extracts a subset of a space time 3D raster dataset.
t.rast3d.list Lists registered maps of a space time raster3d dataset.
t.rast3d.mapcalc Performs r3.mapcalc expressions on maps of sampled space time 3D raster datasets.
t.rast3d.univar Calculates univariate statistics from the non-null cells for each registered 3D raster map of a space time 3D raster dataset.
t.register Assigns timestamps and registers raster, vector and raster3d maps in a space time dataset.
t.remove Removes space time datasets from temporal database.
t.rename Renames a space time dataset
t.sample Samples the input space time dataset(s) with a sample space time dataset and print the result to stdout.
t.select Select maps from space time datasets by topological relationships to other space time datasets using temporal algebra.
t.shift Shifts temporally the maps of a space time dataset.
t.snap Snaps temporally the maps of a space time dataset.
t.support Modifies the metadata of a space time dataset.
t.topology Lists temporal topology of a space time dataset.
t.unregister Unregisters raster, vector and raster3d maps from the temporal database or a specific space time dataset.
t.vect.algebra Apply temporal and spatial operations on space time vector datasets using temporal vector algebra.
t.vect.db.select Prints attributes of vector maps registered in a space time vector dataset.
t.vect.export Exports a space time vector dataset as GRASS GIS specific archive file.
t.vect.extract Extracts a subset of a space time vector dataset.
t.vect.import Imports a space time vector dataset from a GRASS GIS specific archive file.
t.vect.list Lists registered maps of a space time vector dataset.
t.vect.observe.strds Observes specific locations in a space time raster dataset over a period of time using vector points.
t.vect.univar Calculates univariate statistics of attributes for each registered vector map of a space time vector dataset
t.vect.what.strds Stores raster map values at spatial and temporal positions of vector points as vector attributes.

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© 2003-2017 GRASS Development Team, GRASS GIS 7.2.1 Reference Manual

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GRASS 7.2.1 Grass User's Manual