The GRASS Development Team and members of the user community have collected
numerous screenshots on these pages.
<p>


<H3>The GRASS HTMLMAP display driver</H3>

GRASS maps can be rendered to a number of output display drivers.
Typically this renders to a graphics window on your screen, but by using
the <a href="../grass64/manuals/html64_user/htmlmapdriver.html">HTMLMAP driver</a>
you can automatically create an image map suitable for inclusion on a web page.
The HTMLMAP driver allows the generation of HTML image maps for area vector
data. HTML image maps are used in conjunction with images to provide unique
URL targets for different portions of an image. The HTMLMAP driver can 
create both client-side image maps embedded into HTML files, or server-side 
image maps used by web server software.

<!-- TODO: live Spearfish example.
  Idea: link to a single page with #sections per field or owner
  containing v.univar, v.db.select/d.what.vect stats for that area -->

<BR><BR>


<h3>Static web content using automatic batch jobs on back-end servers</h3>

<BR>
<table width="500" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="http://adhoc.osgeo.osuosl.org/grass/alternate_projections/earthquakes_wintri.png" target="_blank"><img src="http://adhoc.osgeo.osuosl.org/grass/earthquakes_tiny.jpg" border="1"
       alt="Batch-generated earthquake map" width="360" height="180"></a></p>
    <p>Recent Earthquakes: map of earthquakes that have occurred in the last
      7 days. A new image is generated every three hours by a
      <a href="https://trac.osgeo.org/grass/browser/grass-promo/tutorials/batch_processing">GRASS
      batch job</a> running on a headless server which fetches data from
      the USGS and creates a logarithmic bubble plot
    <BR>
    <font size="-2"><i>credit: H. Bowman and M. Neteler</i></font>
    <br>
    </div>
    <BR>
  </td>
 </tr>
</table>


<h3>Dynamic web content using PHP</h3>

<!-- TODO: explain a bit about what PHP is and what it allows you to do -->
<!-- ???  <BR><a href="http://grass.fbk.eu/spearfish/php_grassmap.php">Static content</a> -->

<BR>
<table width="500" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="http://grass.fbk.eu/spearfish/php_grass_earthquakes.php" target="_blank"><img src="http://grass.fbk.eu/spearfish/earthquakes_tiny.jpg" border="1"
       alt="Auto-generated earthquake map (GRASS GIS/PHP based)" width="360" height="192"></a></p>
    <p>Recent Earthquakes: map of earthquakes that have occurred in the last
      7 days. Image is generated on the fly by a GRASS PHP script which fetches
      data from the USGS and creates a calibrated bubble plot
    <BR>
    <font size="-2"><i>credit: M. Neteler</i></font>
    <br>
    </div>
    <BR>
  </td>
 </tr>
</table>


<h3>Interactive Web User Interfaces</h3>

<a href="http://pywps.wald.intevation.org">PyWPS (Python Web Processing Service)</a>
is an implementation of the
<a href="http://www.opengeospatial.org/standards/requests/28">Web Processing Service</a>
standard from the <a href="http://opengeospatial.org/">Open Geospatial Consortium</a>.
<P>
Processes can be written using GRASS GIS, but the use of other programs is also possible.
For example, it may be used together with the <a href="http://r-project.org/">R</a>
geo-statistics package or <a href="http://www.gdal.org">GDAL</a> or
<a href="http://proj.maptools.org">PROJ</a> tools.
<BR><BR>


<table width="100%" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="http://www.bnhelp.cz/mapserv/pokusy/OpenLayers/jachym/openlayers/examples/wps.html" target="_blank"><img src="images/openlayers_wps_edit.png" alt="" border="1"></a></p>
    <p>OpenLayers WPS explore and edit the world demo
    <BR>
    <font size="-2"><i>credit: <a href="http://www.les-ejk.cz/english/pywps-and-openlayers">J&aacute;chym &#268;epick&yacute;</a>
    </i></font>
    <br>
    </div>
    <BR><BR>
  </td>
 </tr>

 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="http://www.bnhelp.cz/mapserv/pokusy/openlayers/wpsdemo/"
    target="_blank"><img src="images/openlayers_wps_classification.jpg" alt="" border="1"></a></p>
    <p>OpenLayers WPS interactive image classification, lines-of-sight and
    shortest path demo.
    <BR>
    <font size="-2"><i>credit: <a href="http://www.les-ejk.cz/english/pywps-and-openlayers">J&aacute;chym &#268;epick&yacute;</a>
    </i></font>
    <br>
    </div>
    <BR><BR>
  </td>
 </tr>
</table>

<table width="400" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="http://pywps.ominiverdi.org/subversion/trunk/web/embrio/vector/v_net_path/v_net_path.php" target="_blank"><img src="images/kaMap_v_net_path_small.jpg" alt="" border="1"></a></p>
    <p>Embrio vector network shortest path routing using the
      <em>v.net.path</em> module
    <BR>
    <font size="-2"><i>code credit: <a href="http://ominiverdi.org">Luca Casagrande &amp; Lorenzo Becchi</a>
    <BR>
    screenshot: H. Bowman</i></font>
    <br>
    </div>
    <BR><BR>
  </td>
 </tr>

 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a
    href="http://pywps.ominiverdi.org/demo/embrio/ka-map/htdocs/index_wps_qgis.html" target="_blank"><img src="images/kaMap_r_walk_small.jpg" alt="" border="1"></a></p>
    <p>ka-Map - PyWPS interface with complete web-based GIS
    <BR>
    <font size="-2"><i>code credit: <a href="http://ominiverdi.org">Luca Casagrande &amp; Lorenzo Becchi</a>
    <BR>
    screenshot: J. &#268;epick&yacute;</i></font>
    <br>
    </div>
    <BR>
  </td>
 </tr>
</table>



<h3>WMS</h3>

Web Map Service is a live geospatial data server system developed by the
<a href="http://opengeospatial.org/">Open Geospatial Consortium</a>.
Two popular implementations are NASA World Wind and Google Earth.
There are many more WMS servers on the Internet, 
<a href="http://www.ogc-services.net/">here is a list of a few</a>.

<P>
GRASS can load geospatial data directly from an online WMS server with the
<em><a href="../grass64/manuals/html64_user/r.in.wms.html">r.in.wms</a></em>
module. A simpler interface pre-tuned to
<a href="http://onearth.jpl.nasa.gov/">NASA's OnEarth</a> server is
provided by the <em>r.in.onearth</em> module from the GRASS
<a href="http://grass.osgeo.org/wiki/GRASS_AddOns">wiki add-ons page</a>.

<BR><BR>

<table width="400" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="../grass63/screenshots/images/r_in_wms_gui.png" target="_blank"><img src="../grass63/screenshots/images/r_in_wms_gui_small.jpg" alt="r.in.wms module GUI"></a></p>
    <p>The <em>r.in.wms</em> WMS download and automatic reprojection module
       Tcl/Tk GUI, ready to download LANDSAT-7 imagery for the current map
       region from NASA's OnEarth WMS server
    <BR>
    <font size="-2"><i>screenshot: H. Bowman</i></font>
    <br>
    </div>
    <BR><BR>
  </td>
</table>



<h3>MapServer</h3>

<!-- TODO: explain what MapServer is, WMS capabilities.. -->
See the <a href="http://grass.osgeo.org/wiki/GRASS_and_MapServer">GRASS and MapServer</a> page on the GRASS Wiki site.
<P>

<table width="100%" border="0" align="center">
 <tr valign="baseline">
  <td>
    <div align="center">
    <p><a href="../start.html" target="_blank"><img src="../images/grass_mapserver.jpg" alt=""></a></p>
    <p>Live GRASS / MapServer demo
    <BR>
    <font size="-2"><i>credit: M. Neteler</i></font>
    <br>
    </div>
    <BR>
  </td>
</table>



<!-- ??? --->
<H3>Napo</H3>
<ul>
<li> <a href="http://grass.fbk.eu/spearfish/napo.html">Napo Spearfish</a><BR>
<li> <a href="http://grass.fbk.eu/spearfish/lite.html">Napo Spearfish Lite</a><BR>
<li> <a href="http://grass.fbk.eu/spearfish/nc_wake_ol.html">NC Wake OL</a>
</ul>