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Hi all,<br>
<br>
I am a member of the Orfeo Toolbox Team (
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<a href="http://www.orfeo-toolbox.org/">http://www.orfeo-toolbox.org/</a>
) and since last year some developments have been made to try to bring
some OTB functionalities inside Quantum GIS.<br>
<br>
Some OTB plugins (C++) have been develop and there are also
developments around the integration of the Monteverdi application as a
Qgis plugin. Monteverdi is an integrated application allowing to create
a complete processing (ortho-rectification, segmentation,
classification, etc.). It allows building processing chains by
selecting modules from a set of menus. It supports raster and vector
data and it is based on already existing OTB filters. Also the
architecture takes advantage of the streaming and multi-threading
capabilities of the OTB pipeline (
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<a href="http://www.orfeo-toolbox.org/otb/monteverdi.html">http://www.orfeo-toolbox.org/otb/monteverdi.html</a>.
)<br>
<br>
The current OTB-QGIS plugins (as of August 2010) rely on writing the
data on the disk after processing before reopening it to be available
in QGIS. The goal is to provide now directly the result of the
processing without going thought disk writing.<br>
<br>
The proposed architecture is to develop an otbprovider in QGIS modeled
after the WMSProvider to be able to add a streamed otb raster layer in
the Qgis viewer. That's the difficult part...Our provider do not work
for now but I think that we're not too far from a solution!<br>
(Technically, there is perhap's the need to define a specific method
AddRasterLayer for otb layers inside the QgisInterface class...But we
need to discuss first with members of the qgis team who will have a
more complete vision of the internal Qgis architecture of data
providers...) <br>
<br>
By the way, we'll present the Orfeo Toolbox and the latest developments
around the library at FOSS4G2010 in Barcelona next week:
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<a href="http://2010.foss4g.org/presentations_show.php?id=3655">http://2010.foss4g.org/presentations_show.php?id=3655</a><br>
<br>
We will be glad to discuss with QGIS developers about these topics
during the conference!<br>
<br>
The source code of this project, based on the Orfeo Toolbox can be
found here :
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<a href="http://hg.orfeo-toolbox.org/OTB-Qgis-plugins/">http://hg.orfeo-toolbox.org/OTB-Qgis-plugins/</a><br>
Informations and current state of developments can also be found on our
wiki :
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<a href="http://wiki.orfeo-toolbox.org/index.php/Quantum_GIS_plugins">http://wiki.orfeo-toolbox.org/index.php/Quantum_GIS_plugins</a><br>
<br>
Best regards,<br>
<br>
Manuel<br>
<pre class="moz-signature" cols="72">--
Manuel GRIZONNET
CNES - DCT/SI/AP - BPI 1219
18, avenue Edouard Belin
31401 Toulouse Cedex 09 - France
Tel: +33 561 282 630 - Fax: +33 561 283 109
</pre>
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