Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.
NAME
t.remove - Removes space time datasets from temporal database.
KEYWORDS
temporal,
map management,
remove,
time
SYNOPSIS
t.remove
t.remove --help
t.remove [-rfd] [inputs=name[,name,...]] [type=string] [file=name] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -r
- Remove stds and unregister maps from temporal database
- -f
- Force removal (required for actual deletion of files)
- -d
- Remove stds, unregister maps from temporal database and delete them from mapset
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- inputs=name[,name,...]
- Name of the input space time datasets
- type=string
- Type of the space time dataset, default is strds
- Options: strds, str3ds, stvds
- Default: strds
- file=name
- Input file with dataset names, one per line
The module
t.remove removes space time datasets (STRDS, STR3DS,
STVDS) from the temporal database. In other words, by default it deletes
the relevant database entries. It can also unregister maps from temporal
database using the recursive mode
-r (recursive)
Optionally, also the raster, 3D raster and vector maps of the space time
datasets can be removed from the current mapset using the -d (delete)
flag.
All removals only work if -f (force) flag is used.
In this example a space time raster dataset (STRDS) named
precip_months_sum will be created using a subset of the monthly
precipitation raster maps from the North Carolina climate sample data set.
In order to be able to show the case of recursive removal without deleting
the original sample data, we generate new data by means of computing
yearly precipitation sums. Eventually, all newly produced data (STRDS and
raster maps) are removed:
#Create new and empty STRDS
t.create output=precip_months_sum semantictype=mean \
title="Monthly sum of precipitation" \
description="Monthly sum of precipitation for the \
North Carolina sample data location"
#Register maps from sample dataset (selecting a subset with g.list)
t.register -i type=raster input=precip_months_sum \
maps=$(g.list type=raster pattern="201*_precip" separator=comma) \
start="2010-01-01" increment="1 months"
#Create some new data by aggregating with 1 years granularity
t.rast.aggregate input=precip_months_sum \
output=precip_years_sum basename=precip_years_sum granularity="1 \
years" method=sum
#Remove all newly produced data:
# a) the aggregated STRDS with 1 years granularity along with its raster maps
t.remove -df type=strds input=precip_years_sum
# b) the STRDS with 1 months granularity, but not the original sample data
t.remove -f type=strds input=precip_months_sum
t.create,
t.info,
t.register
Sören Gebbert, Thünen Institute of Climate-Smart Agriculture
SOURCE CODE
Available at:
t.remove source code
(history)
Latest change: Thursday Feb 03 11:10:06 2022 in commit: 547ff44e6aecfb4c9cbf6a4717fc14e521bec0be
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GRASS Development Team,
GRASS GIS 8.3.3dev Reference Manual