This is the command t.topologygrass 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.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 relationships and exit
-s
Print spatio-temporal 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
+----------------------------------------------------------------------------+
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