Hi Fabio,
Unfortunately, I have not had the capacity to follow the OpenGeoBI, though I do find it interesting, as I do GeoMondrian. I suppose that for now, we have settled on our own approach to aggregation rather than relying on a full OLAP engine - partly because we found it less than straightforward to handle complex indicator calculations.
We are also revamping our full dimensional model in DHIS2, and work remains. As I see it currently, the basic DHIS2 model should probably have time and space as the basic, compulsory dimensions (the when and where), and then requiring at least one more (the what, which we have been calling data element), but allowing any number of user defined additional ones (typical ones will be gender and age groups for disease type data).
All that being said, there is also intense work underway, lead by Bob Jolliffe, on developing the first version of the SDMX-HD standard (see sdmx-hd.org). SDMX is closely related to the OLAP world, and does have an apparatus for handling geographical hierarchies.
Knut
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2009/12/4 Fabio D’Ovidio fabiodovidio@gmail.com
Hello Knut,
what about Spatial OLAP in DHIS2 ? How was it implemented?
Are you following OpenGeoBI developments (also with SpagoBI platform)?
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Fabio D’Ovidio
Geospatial solutions
Inova S.r.l.
Web : http://www.inovaos.it
GeoBI Blog: www.geobi.org
Tel.: 081 197 57 600
mail: fabiodovidio@gmail.com, f.dovidio@inovaos.it
skype: dovidio_fa
Knut Staring ha scritto:
2009/12/1 Cédric Moullet <cedric.moullet@camptocamp.com mailto:cedric.moullet@camptocamp.com>
Hi Pedro, On Tue, Dec 1, 2009 at 10:19 PM, Pedro Baracho > > <pedropbaracho@gmail.com <mailto:pedropbaracho@gmail.com>> wrote: 2.1 - If it doesn't implement OGC services, then how is the integration with cartographic servers? For instance, if I want to search something, I would use Mapfish Protocol so Mapfish server processed the search and returned me ........ vector data?? What about a huge amount of data and some WMS response? Is there any way to tell Mapfish server to send this processed data to some cartographic server and then get a WMS response for example? We usually use a WMS for data representation.But it is also possible to use vector data on the client side (see for example [http://demo.mapfish.org/mapfishsample/1.2/examples/geostat/choropleths.html](http://demo.mapfish.org/mapfishsample/1.2/examples/geostat/choropleths.html))Pedro, in terms of vector thematic mapping, perhaps it could be of some interest for you to also have a look at the extensions to the Geostat example in the DHIS2 project using GeoJSON, though not MapFish server.
Login is admin/district, click on “HIV prevalence July 2007 <javascript:window.location.href=‘…/dhis-web-mapping/mapping/index.html?view=3952’>”, and then on “Refresh” button: http://97.107.142.53:8080/demo
Source code:
http://bazaar.launchpad.net/~dhis2-devs-core/dhis2/trunk/files/head%3A/dhis-2/dhis-web/dhis-web-mapping/src/main/webapp/dhis-web-mapping/mapping/script/ <http://bazaar.launchpad.net/%7Edhis2-devs-core/dhis2/trunk/files/head%3A/dhis-2/dhis-web/dhis-web-mapping/src/main/webapp/dhis-web-mapping/mapping/script/>
Regards,
Knut
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Cheers,
Knut Staring