[GRASS-SVN] r62878 - grass/branches/releasebranch_7_0/temporal
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Nov 23 14:56:47 PST 2014
Author: huhabla
Date: 2014-11-23 14:56:47 -0800 (Sun, 23 Nov 2014)
New Revision: 62878
Modified:
grass/branches/releasebranch_7_0/temporal/temporalintro.html
Log:
temporal modules: Backport r62877 from trunk
Modified: grass/branches/releasebranch_7_0/temporal/temporalintro.html
===================================================================
--- grass/branches/releasebranch_7_0/temporal/temporalintro.html 2014-11-23 22:54:38 UTC (rev 62877)
+++ grass/branches/releasebranch_7_0/temporal/temporalintro.html 2014-11-23 22:56:47 UTC (rev 62878)
@@ -1,8 +1,7 @@
<!-- meta page description: Temporal data processing in GRASS GIS -->
<!-- meta page index: temporal -->
-<h3>The temporal GIS framework in general</h3>
-The temporal GIS framework in GRASS introduces three new datatypes that
+The temporal enabled GRASS introduces three new datatypes that
are designed to handle time series data:
<ul>
<li> <em>Space time raster datasets</em> (strds) are designed to manage
@@ -16,53 +15,38 @@
prefix <em>t.vect</em>.
</ul>
+These new data types can be managed, analyzed and processed with temporal modules that
+are based on the GRASS GIS temporal framework.
+
<h3>Temporal data management in general</h3>
-List of general management modules:
-<ul>
- <li><a href="t.connect.html">t.connect</a></li>
- <li><a href="t.create.html">t.create</a></li>
- <li><a href="t.rename.html">t.rename</a></li>
- <li><a href="t.remove.html">t.remove</a></li>
- <li><a href="t.register.html">t.register</a></li>
- <li><a href="t.unregister.html">t.unregister</a></li>
- <li><a href="t.info.html">t.info</a></li>
- <li><a href="t.list.html">t.list</a></li>
- <li><a href="t.rast3d.list.html">t.rast3d.list</a></li>
- <li><a href="t.vect.list.html">t.vect.list</a></li>
- <li><a href="t.vect.db.select.html">t.vect.db.select</a></li>
- <li><a href="t.sample.html">t.sample</a></li>
- <li><a href="t.support.html">t.support</a></li>
- <li><a href="t.topology.html">t.topology</a></li>
-</ul>
Space time datasets are stored in a temporal database. SQLite3 or
PostgreSQL are supported as SQL database back end.
Connection settings are performed with <a href="t.connect.html">t.connect</a>.
-<!-- TODO: really always PERMANENT? - see http://trac.osgeo.org/grass/ticket/2258 -->
-As default a sqlite3 database will be created in the PERMANENT mapset that
-stores all space time datasets and registered time series maps from all
-mapsets in the location.
+As default a sqlite3 database will be created in the current mapset that
+stores all space time datasets and registered time series maps.
<p>
-New space time datasets can be created in the temporal database with
+New space time datasets are created in the temporal database with
<a href="t.create.html">t.create</a>. The name of the new dataset, the
type (strds, str3ds, stvds), the title and the description must be
provided for creation. Optional the temporal type (absolute, relative)
-and semantic informations can be provided. The module
-<a href="t.remove.html">t.remove</a> will remove the space time datasets
+and semantic informations can be provided.
+<p>
+The module <a href="t.remove.html">t.remove</a> will remove the space time datasets
from the temporal database. Use <a href="t.support.html">t.support</a>
to modify the metadata of space time datasets or to update the metadata
that is derived from registered maps. This module also checks for removed
and modified maps and updates the space time datasets accordingly.
-You can rename a space time dataset with <a href="t.rename.html">t.rename</a>.
+Rename a space time dataset with <a href="t.rename.html">t.rename</a>.
<p>
-The module <a href="t.register.html">t.register</a> was designed to
+The module <a href="t.register.html">t.register</a> is designed to
register raster, 3D raster and vector maps in the temporal database and
optionally in a space time dataset. It supports different input options. Maps
-to register can be provided as a comma separated string on the command line, or
+to register can be provided as a comma separated string at the command line, or
in an input file. The module supports the definition of time stamps
(time instances or intervals) for each map in the input file.
With <a href="t.unregister.html">t.unregister</a> maps can be unregistered
-from space time datasets or the temporal database.
+from space time datasets and the temporal database.
<p>
To print informations about space time datasets or registered maps, the
module <a href="t.info.html">t.info</a> can be used.
@@ -71,16 +55,40 @@
<p>
To compute and check the temporal topology of a space time datasets the
module <a href="t.topology.html">t.topology</a> was designed. The module
-<a href="t.sample.html">t.sample</a> samples the input space time dataset(s)
+<a href="t.sample.html">t.sample</a> samples input space time dataset(s)
with a sample space time dataset and print the result to standard output.
Several different sample methods are supported that can be combined.
+<p>
+List of general management modules:
+<ul>
+ <li><a href="t.connect.html">t.connect</a></li>
+ <li><a href="t.create.html">t.create</a></li>
+ <li><a href="t.rename.html">t.rename</a></li>
+ <li><a href="t.remove.html">t.remove</a></li>
+ <li><a href="t.register.html">t.register</a></li>
+ <li><a href="t.unregister.html">t.unregister</a></li>
+ <li><a href="t.info.html">t.info</a></li>
+ <li><a href="t.list.html">t.list</a></li>
+ <li><a href="t.sample.html">t.sample</a></li>
+ <li><a href="t.support.html">t.support</a></li>
+ <li><a href="t.topology.html">t.topology</a></li>
+</ul>
+<h3>Modules to visualize space time datasets and temporal data</h3>
+<ul>
+ <li><a href="g.gui.animation.html">g.gui.animation</a></li>
+ <li><a href="g.gui.timeline.html">g.gui.timeline</a></li>
+ <li><a href="g.gui.mapswipe.html">g.gui.mapswipe</a></li>
+ <li><a href="g.gui.tplot.html">g.gui.tplot</a></li>
+</ul>
+
<h3>Modules to process space time raster datasets</h3>
The focus of the temporal GIS framework is the processing and analysis of
-raster time series. Hence several modules that process space time raster
-datasets are implemented.
+raster time series. Hence the majority of the temporal modules are designed to process space time raster
+datasets. However, there are several modules to process space time 3D raster datasets
+and space time vector datasets.
<h4>Querying and map calculation</h4>
@@ -93,29 +101,15 @@
maps.
<ul>
- <li><a href="t.rast.list.html">t.rast.list</a></li>
<li><a href="t.rast.extract.html">t.rast.extract</a></li>
<li><a href="t.rast.gapfill.html">t.rast.gapfill</a></li>
<li><a href="t.rast.mapcalc.html">t.rast.mapcalc</a></li>
- <li><a href="t.rast3d.extract.html">t.rast3d.extract</a></li>
- <li><a href="t.rast3d.mapcalc.html">t.rast3d.mapcalc</a></li>
- <li><a href="t.rast3d.univar.html">t.rast3d.univar</a></li>
- <li><a href="t.vect.extract.html">t.vect.extract</a></li>
- <li><a href="t.vect.import.html">t.vect.import</a></li>
- <li><a href="t.vect.observe.strds.html">t.vect.observe.strds</a></li>
- <li><a href="t.vect.univar.html">t.vect.univar</a></li>
- <li><a href="t.vect.what.strds.html">t.vect.what.strds</a></li>
+ <li><a href="t.rast.colors.html">t.rast.colors</a></li>
+ <li><a href="t.rast.neighbors.html">t.rast.neighbors</a></li>
</ul>
+<h4>Aggregation and accumulation analysis</h4>
-<h4>Aggregation</h4>
-
-<ul>
- <li><a href="t.rast.aggregate.ds.html">t.rast.aggregate.ds</a></li>
- <li><a href="t.rast.aggregate.html">t.rast.aggregate</a></li>
- <li><a href="t.rast.series.html">t.rast.series</a></li>
-</ul>
-
The temporal framework support the aggregation of space time raster
datasets. It provides three modules to perform aggregation using different
approaches. To aggregate a space time raster map using a temporal
@@ -128,16 +122,31 @@
<a href="t.rast.series.html">t.rast.series</a> that processes the whole
input space time raster dataset or a subset of it.
+<ul>
+ <li><a href="t.rast.aggregate.html">t.rast.aggregate</a></li>
+ <li><a href="t.rast.aggregate.ds.html">t.rast.aggregate.ds</a></li>
+ <li><a href="t.rast.series.html">t.rast.series</a></li>
+ <li><a href="t.rast.accumulate.html">t.rast.accumulate</a></li>
+ <li><a href="t.rast.accdetect.html">t.rast.accdetect</a></li>
+</ul>
<h4>Export/import conversion</h4>
+Space time raster datasets can be exported with <a href="t.rast.export.html">t.rast.export</a>
+as compressed tar archive. Such archives can be imported
+using <a href="t.rast.import.html">t.rast.import</a>,
+<p>
+The module <a href="t.rast.to.rast3.html">t.rast.to.rast3</a> converts
+space time raster datasets into space time voxel cubes. All 3D raster modules
+can be used to process such voxel cubes. This conversion allows the export of space time raster datasets
+as netcdf files that include time as one dimension.
+
<ul>
<li><a href="t.rast.export.html">t.rast.export</a></li>
<li><a href="t.rast.import.html">t.rast.import</a></li>
<li><a href="t.rast.out.vtk.html">t.rast.out.vtk</a></li>
<li><a href="t.rast.to.rast3.html">t.rast.to.rast3</a></li>
<li><a href="r3.out.netcdf.html">r3.out.netcdf</a></li>
- <li><a href="t.vect.export.html">t.vect.export</a></li>
</ul>
<h4>Statistics and gap filling</h4>
@@ -147,12 +156,40 @@
<li><a href="t.rast.univar.html">t.rast.univar</a></li>
</ul>
+<h3>Modules to manage, process and analyze STR3DS and STVDS</h3>
+
+Several space time vector dataset modules were developed, to allow the handling
+of vector time series data.
+
+<ul>
+ <li><a href="t.vect.extract.html">t.vect.extract</a></li>
+ <li><a href="t.vect.import.html">t.vect.import</a></li>
+ <li><a href="t.vect.export.html">t.vect.export</a></li>
+ <li><a href="t.vect.observe.strds.html">t.vect.observe.strds</a></li>
+ <li><a href="t.vect.univar.html">t.vect.univar</a></li>
+ <li><a href="t.vect.what.strds.html">t.vect.what.strds</a></li>
+ <li><a href="t.vect.db.select.html">t.vect.db.select</a></li>
+</ul>
+
+The space time 3D raster dataset modules are doing exactly the same as their raster
+pendants but with 3D raster map layers:
+
+<ul>
+ <li><a href="t.rast3d.list.html">t.rast3d.list</a></li>
+ <li><a href="t.rast3d.extract.html">t.rast3d.extract</a></li>
+ <li><a href="t.rast3d.mapcalc.html">t.rast3d.mapcalc</a></li>
+ <li><a href="t.rast3d.univar.html">t.rast3d.univar</a></li>
+</ul>
+
<h4>See also</h4>
<ul>
<li>Gebbert, S., Pebesma, E., 2014. TGRASS: A temporal GIS for field based
environmental modeling. Environmental Modelling & Software 53, 1-12.
(<a href="http://dx.doi.org/10.1016/j.envsoft.2013.11.001">DOI</a>)</li>
+<li>Vaclav Petras, Anna Petrasova, Helena Mitasova, Markus Neteler, <b>FOSS4G 2014 workshop</b>: <br>
+ <a href="http://fatra.cnr.ncsu.edu/temporal-grass-workshop/">Spatio-temporal data handling and visualization in GRASS GIS</a></li>
+<li><a href="http://www.geostat-course.org/Topic_Gebbert">GeoStat TGRASS Course</a></li>
</ul>
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