t.topology(1)

NAME
t.topology - Lists temporal topology of a space time dataset.

KEYWORDS
temporal, topology, time

SYNOPSIS
t.topology
t.topology --help
t.topology [-ms] input=name [type=name] [where=sql_query] [--help] [--verbose] [--quiet] [--ui]

  Flags:

-m
    Print temporal topological relationships and exit

-s
    Print spatio-temporal topological relationships and exit

--help
    Print usage summary

--verbose
    Verbose module output

--quiet
    Quiet module output

--ui
    Force launching GUI dialog

  Parameters:

input=name [required]
    Name of the input space time dataset

type=name
    Type of the input space time dataset
    Options: strds, stvds, str3ds
    Default: strds

where=sql_query
    WHERE conditions of SQL statement without ’where’ keyword used in the temporal GIS framework
    Example: start_time > ’2001-01-01 12:30:00’

DESCRIPTION
The module t.topology lists temporal relations of the maps in a space time dataset.

EXAMPLE
In order to obtain information about space time dataset topology, run:

t.topology tempmean_monthly@climate_2009_2012
 +-------------------- Basic information -------------------------------------+
 | Id: ........................ tempmean_monthly@climate_2009_2012
 | Name: ...................... tempmean_monthly
 | Mapset: .................... climate_2009_2012
 | Creator: ................... lucadelu
 | Temporal type: ............. absolute
 | Creation time: ............. 2014-11-28 10:40:55.060096
 | Modification time:.......... 2014-11-28 16:08:42.166628
 | Semantic type:.............. mean
 +-------------------- Temporal topology -------------------------------------+
 | Is subset of dataset: ...... False
 | Temporal topology is: ...... valid
 | Number of intervals: ....... 48
 | Invalid time stamps: ....... 0
 | Number of points: .......... 0
 | Number of gaps: ............ 0
 | Granularity: ............... 1 month
 +-------------------- Topological relations ---------------------------------+
 | Overlaps: .................. 0
 | Overlapped: ................ 0
 | Finishes: .................. 0
 | Started: ................... 0
 | Follows: ................... 47
 | Contains: .................. 0
 | Equal:...................... 0
 | Finished: .................. 0
 | Precedes: .................. 47
 | Starts: .................... 0
 | During: .................... 0
 +----------------------------------------------------------------------------+

SEE ALSO
t.create, t.info

AUTHOR
Sören Gebbert, Thünen Institute of Climate-Smart Agriculture

Last changed: $Date$

SOURCE CODE

Available at: t.topology source code (history)

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© 2003-2019 GRASS Development Team, GRASS GIS 7.8.0 Reference Manual