[GRASS-user] invalid temporal topology

GRASS GRASS user
1

Hi,

when playing with temporal framework I discovered that my dataset has
invalid temporal topology:

$ t.topology modis | grep valid
| Temporal topology is: ...... invalid

How can I discover the reason, why it's invalid? Thanks in advance, Martin

--
Martin Landa * http://geo.fsv.cvut.cz/gwiki/Landa

2

Hi,

2014-04-22 20:28 GMT+02:00 Martin Landa <landa.martin@gmail.com>:

OK, solved - missing time in timestamps, anyway the module should
print to the user reason of invalidity...

Martin

--
Martin Landa * http://geo.fsv.cvut.cz/gwiki/Landa

3

Hi Martin,
you can inspect the temporal topology using "g.gui.timeline" or you
pipe the output of "t.topology -m input=STDS" into a file and search
for the temporal relationships that should not occur in a valid
temporal topology (only precedes, follows, before, and after are valid
relations). All temporal relationships that occur in a STDS are
counted and shown by "t.topology input=STDS".

Best regards
Soeren

2014-04-22 21:21 GMT+02:00 Martin Landa <landa.martin@gmail.com>:

Hi,

2014-04-22 20:28 GMT+02:00 Martin Landa <landa.martin@gmail.com>:

OK, solved - missing time in timestamps, anyway the module should
print to the user reason of invalidity...

Martin

--
Martin Landa * http://geo.fsv.cvut.cz/gwiki/Landa
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