Geografic-Information-System/temporal/t.vect.observe.strds/t.vect.observe.strds.html

<h2>DESCRIPTION</h2>

The module <em>t.vect.observe.strds</em> is used to observe specific
locations in a space time raster dataset over a period of time using
vector points.

<h2>EXAMPLE</h2>

The example show how to create a space time vector dataset and a vector
layer starting from a point vector and a space time raster dataset:

<div class="code"><pre>
t.vect.observe.strds in=precip_30ynormals_3d strds=tempmean_monthly \
                     out=precip_stations vect=precip_stations_monthly \
                     columns=month

t.info precip_stations type=stvds
 +-------------------- Space Time Vector Dataset -----------------------------+
 |                                                                            |
 +-------------------- Basic information -------------------------------------+
 | Id: ........................ precip_stations@climate_2009_2012
 | Name: ...................... precip_stations
 | Mapset: .................... climate_2009_2012
 | Creator: ................... lucadelu
 | Temporal type: ............. absolute
 | Creation time: ............. 2014-12-02 00:42:39.187615
 | Modification time:.......... 2014-12-02 00:42:55.215169
 | Semantic type:.............. mean
 +-------------------- Absolute time -----------------------------------------+
 | Start time:................. 2009-01-01 00:00:00
 | End time:................... 2013-01-01 00:00:00
 | Granularity:................ 1 month
 | Temporal type of maps:...... interval
 +-------------------- Spatial extent ----------------------------------------+
 | North:...................... 306221.830194
 | South:...................... 27606.895351
 | East:.. .................... 917004.829165
 | West:....................... 151768.568246
 | Top:........................ 1615.44
 | Bottom:..................... 2.4384
 +-------------------- Metadata information ----------------------------------+
 | Vector register table:...... vector_map_register_be074525097c4088997c9a1979f17065
 | Number of points ........... 6664
 | Number of lines ............ 0
 | Number of boundaries ....... 0
 | Number of centroids ........ 0
 | Number of faces ............ 0
 | Number of kernels .......... 0
 | Number of primitives ....... 6664
 | Number of nodes ............ 0
 | Number of areas ............ 0
 | Number of islands .......... 0
 | Number of holes ............ 0
 | Number of volumes .......... 0
 | Number of registered maps:.. 49
 |
 | Title:
 | Observaion of space time raster dataset(s) tempmean_monthly
 | Description:
 | Observation of space time raster dataset(s) tempmean_monthly with vector map precip_30ynormals_3d
 | Command history:
 | # 2014-12-02 00:42:39
 | t.vect.observe.strds in="precip_30ynormals_3d"
 |     strds="tempmean_monthly" out="precip_stations"
 |     vect="precip_stations_monthly" columns="month"
 |
 +----------------------------------------------------------------------------+


v.info precip_stations_monthly
 +----------------------------------------------------------------------------+
 | Name:            precip_stations_monthly                                   |
 | Mapset:          climate_2009_2012                                         |
 | Location:        nc_spm_temporal_workshop                                  |
 | Database:        /grassdata                                                |
 | Title:           North Carolina 30 year precipitation normals (3D)         |
 | Map scale:       1:1                                                       |
 | Name of creator: neteler                                                   |
 | Organization:                                                              |
 | Source date:     Wed May  9 14:32:39 2007                                  |
 | Timestamp (first layer): none                                              |
 |----------------------------------------------------------------------------|
 | Map format:      native                                                    |
 |----------------------------------------------------------------------------|
 |   Type of map: vector (level: 2)                                           |
 |                                                                            |
 |   Number of points:       136             Number of centroids:  0          |
 |   Number of lines:        0               Number of boundaries: 0          |
 |   Number of areas:        0               Number of islands:    0          |
 |   Number of faces:        0               Number of kernels:    0          |
 |   Number of volumes:      0               Number of holes:      0          |
 |                                                                            |
 |   Map is 3D:              Yes                                              |
 |   Number of dblinks:      49                                               |
 |                                                                            |
 |   Projection: Lambert Conformal Conic                                      |
 |                                                                            |
 |               N:     306221.830194    S:      27606.895351                 |
 |               E:     917004.829165    W:     151768.568246                 |
 |               B:            2.4384    T:           1615.44                 |
 |                                                                            |
 |   Digitization threshold: 0                                                |
 |   Comment:                                                                 |
 |                                                                            |
 +----------------------------------------------------------------------------+

</pre></div>

<h2>SEE ALSO</h2>

<em>
<a href="t.create.html">t.create</a>,
<a href="t.info.html">t.info</a>
</em>

<h2>AUTHOR</h2>

S&ouml;ren Gebbert, Th&uuml;nen Institute of Climate-Smart Agriculture

<p><i>Last changed: $Date$</i>