This is the command t.creategrass that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
t.create - Creates a space time dataset.
KEYWORDS
temporal, map management, create, time
SYNOPSIS
t.create
t.create --help
t.create output=name [type=name] [temporaltype=name] semantictype=string title=string
description=string [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
output=name [required]
Name of the output space time dataset
type=name
Type of the output space time dataset
Options: strds, stvds, str3ds
Default: strds
temporaltype=name
The temporal type of the space time dataset
Options: absolute, relative
Default: absolute
semantictype=string [required]
Semantic type of the space time dataset
Options: min, max, sum, mean
Default: mean
title=string [required]
Title of the new space time dataset
description=string [required]
Description of the new space time dataset
DESCRIPTION
t.create is used to create space time datasets of type raster (STRDS), 3D raster (STR3DS)
and vector (STVDS).
Space time datasets represent spatio-temporal fields in the temporal GRASS framework. They
are designed to collect any amount of time stamped maps with time intervals and time
instances. The temporal type of a space time dataset can be absolute (means with a fixed
date) or relative (only sequential maps) and must be set during dataset creation along
with the name and the description.
Time stamped maps can registered in and unregistered from space time datasets. The
spatio-temporal extent as well as the metadata of a space time dataset is derived from its
registered maps. Hence the metadata is dependent from the dataset type (raster, 3D raster,
vector).
EXAMPLE
Absolute STRDS dataset
Create a raster space time datasets
t.create type=strds temporaltype=absolute \
output=precipitation_monthly \
title="Monthly precipitation" \
description="Dataset with monthly precipitation"
Relative STVDS dataset
Create a vector space time datasets
t.create type=stvds temporaltype=relative \
output=precipitation_monthly_30y \
title="Monthly precipitation 30 years" \
description="Test dataset with monthly average \
precipitation in the last 30 year"
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