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@@ -4,6 +4,30 @@ The module <em>t.vect.observe.strds</em> is used to observe specific
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locations in a space time raster dataset over a period of time using
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vector points.
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+The first input is a vector map layer with
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+vector points. The second input is one or several space time raster
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+datasets (STRDS) that should be sampled over time at the vector point
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+positions. The space time raster dataset will be sampled over its
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+whole temporal extent (from start to end). The range can be adjusted
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+using the temporal where condition <em>t_where</em>. A
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+column name must be specified for each input space time raster dataset.
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+<p>
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+As results a new space time vector dataset is generated
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+that contains a single
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+(new) vector map that links to as many time stamped attribute tables
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+as raster map layer are present in the input space time raster dataset.
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+Hence, for each time step in the space time raster dataset a new
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+attribute table is created. The GRASS GIS Temporal Framework allows to
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+time stamp attribute tables that can be linked to a single vector map
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+layer.
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+<p>
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+The module v.what.rast is used internally for sampling the time stamped raster
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+map layers. All sampled values of a single time stamped raster map
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+layer are written into a new time stamped attribute table.
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+<p>
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+Use t.vect.db.select to print attribute values of the space
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+time vector dataset to stdout.
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+
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<h2>EXAMPLE</h2>
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The example show how to create a space time vector dataset and a vector
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@@ -109,6 +133,8 @@ v.info precip_stations_monthly
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<h2>SEE ALSO</h2>
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<em>
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+<a href="t.vect.db.select.html">t.vect.db.select</a>,
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+<a href="t.vect.what.strds.html">t.vect.what.strds</a>,
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<a href="t.create.html">t.create</a>,
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<a href="t.info.html">t.info</a>
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</em>
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Soeren Gebbert