[GRASS-user] t.register does not register anything in a STVDS

[Laurent C.]

Sören,

I was sure I did. Anyway is it expected behaviour to be able to
register maps in the DB without registering them in a STDS?
I agree with Markus that a warning could be useful.
Thanks for the tip.

Laurent



2017-02-23 21:27 GMT-06:00 Sören Gebbert <soerengebbert at googlemail.com>:
> You need to specify the name of the stvds in t.register.
>
> Am 24.02.2017 02:48 schrieb "Laurent C." <lrntct at gmail.com>:
>>
>> Hello,
>>
>> I created an empty STVDS that looks fine:
>>
>> t.info input=water_levels_20150801 at kolkata type=stvds
>>  +-------------------- Space Time Vector Dataset
>> -----------------------------+
>>  |
>> |
>>  +-------------------- Basic information
>> -------------------------------------+
>>  | Id: ........................ water_levels_20150801 at kolkata
>>  | Name: ...................... water_levels_20150801
>>  | Mapset: .................... kolkata
>>  | Creator: ................... laurent
>>  | Temporal type: ............. absolute
>>  | Creation time: ............. 2017-02-23 19:18:15.120512
>>  | Modification time:.......... 2017-02-23 19:18:15.120516
>>  | Semantic type:.............. mean
>>  +-------------------- Absolute time
>> -----------------------------------------+
>>  | Start time:................. None
>>  | End time:................... None
>>  | Granularity:................ None
>>  | Temporal type of maps:...... None
>>  +-------------------- Spatial extent
>> ----------------------------------------+
>>  | North:...................... None
>>  | South:...................... None
>>  | East:.. .................... None
>>  | West:....................... None
>>  | Top:........................ None
>>  | Bottom:..................... None
>>  +-------------------- Metadata information
>> ----------------------------------+
>>  | Vector register table:......
>> vector_map_register_c14262576ea94a78a55b48b65a72b3a6
>>  | Number of points ........... None
>>  | Number of lines ............ None
>>  | Number of boundaries ....... None
>>  | Number of centroids ........ None
>>  | Number of faces ............ None
>>  | Number of kernels .......... None
>>  | Number of primitives ....... None
>>  | Number of nodes ............ None
>>  | Number of areas ............ None
>>  | Number of islands .......... None
>>  | Number of holes ............ None
>>  | Number of volumes .......... None
>>  | Number of registered maps:.. None
>>  |
>>  | Title:
>>  | water_levels
>>  | Description:
>>  |
>>  | Command history:
>>  | # 2017-02-23 19:18:15
>>  | t.create --overwrite output="water_levels_20150801"
>>  |     type="stvds" semantictype="mean" title="water_levels" description="
>> "
>>  |
>>
>> +----------------------------------------------------------------------------+
>>
>> I have a maplist file in the form:
>> water_levels_20150731000000|2015-07-31 00:00:00
>> water_levels_20150731001500|2015-07-31 00:15:00
>> [snip]
>> water_levels_20150801233000|2015-08-01 23:30:00
>> water_levels_20150801234500|2015-08-01 23:45:00
>>
>> The vector maps look sane:
>> v.info map=water_levels_20150731021500 at kolkata
>>
>> +----------------------------------------------------------------------------+
>>  | Name:            water_levels_20150731021500
>> |
>>  | Mapset:          kolkata
>> |
>>  | Location:        UTM45N
>> |
>>  | Database:        /home/laurent/grassdata
>> |
>>  | Title:
>> |
>>  | Map scale:       1:1
>> |
>>  | Name of creator: laurent
>> |
>>  | Organization:
>> |
>>  | Source date:     Thu Feb 23 18:50:06 2017
>> |
>>  | Timestamp (first layer): 31 Jul 2015 02:15:00
>> |
>>
>> |----------------------------------------------------------------------------|
>>  | Map format:      native
>> |
>>
>> |----------------------------------------------------------------------------|
>>  |   Type of map: vector (level: 2)
>> |
>>  |
>> |
>>  |   Number of points:       3               Number of centroids:  0
>> |
>>  |   Number of lines:        0               Number of boundaries: 0
>> |
>>  |   Number of areas:        0               Number of islands:    0
>> |
>>  |
>> |
>>  |   Map is 3D:              No
>> |
>>  |   Number of dblinks:      1
>> |
>>  |
>> |
>>  |   Projection: UTM (zone 45)
>> |
>>  |
>> |
>>  |               N:  2495814.59574642    S:  2492825.11903619
>> |
>>  |               E:   645063.06070329    W:   641365.09898322
>> |
>>  |
>> |
>>  |   Digitization threshold: 0
>> |
>>  |   Comment:
>> |
>>  |
>> |
>>
>> +----------------------------------------------------------------------------+
>>
>>
>> t.register seems to works fine:
>> t.register --overwrite --verbose type=vector
>>
>> file=/home/laurent/Datos_geo/kolkata/one_rainfall_event_of_2015/wl_register_list.txt
>> Gathering map information...
>> Registering maps in the temporal database...
>>
>> But no map is added to the STVDS. If I run t.info again, I get the
>> exact same results as above.
>>
>> Strangely, if I run t.register without the --overwrite flag, I get the
>> following error:
>> t.register --verbose type=vector
>>
>> file=/home/laurent/Datos_geo/kolkata/one_rainfall_event_of_2015/wl_register_list.txt
>> Gathering map information...
>> WARNING: Map is already registered in temporal database. Unable to
>> update vector map <water_levels_20150731000000 at kolkata>. Overwrite
>> flag is not set.
>> [snip]
>>
>> But again, t.info or t.vect.list don't show any map.
>>
>> By opening the SQLite DB, I can see that:
>>  - the vector maps appear in 'vector_spatial_extent', with the extent
>> filled-up
>>  - the vector maps appear in 'vector_absolute_time', with the correct
>> start time
>>  - the values in 'vector_metadata' seem correct
>>  - the vector maps appear in 'vector_stds_register', but the column
>> 'registered_stds' is empty
>>
>> Is there something I'm missing?
>>
>> Regards,
>> Laurent
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