[Portugal] DB4GeO: Open Source Geospatial Database for 3D Data

[Hugo Martins]

  Sent to you by Hugo Martins via Google Reader: DB4GeO: Open Source
Geospatial Database for 3D Data via Slashgeo.org by Alex on 5/23/12

I was at the 3D GeoInfo 2012 conference last week and I learned about
the DB4GeO / DB3D open source geospatial database, which is a Java
object-oriented database focusing on 3D data. It supports CityGML, has
a RESTful API and has its own WebGL visualization tool.

Since I failed to find much about it on the web other than the GitHub
page (it seems the code wasn't synchronized for a while), let me serve
you the abstract [pdf] of last week's presentation: "The analysis of
complex 3D data is a central task for many problems in the geo- and
engineering sciences. Examples are the analysis of natural events such
as mass movements and volcano eruptions as well as 3D city planning and
the computation of 3D models from point cloud data generated by
terrestrial laser scanning for 3D data analysis in various domains. The
volume of these data is growing from year to year. However, there is no
geo-database management system on the market yet that efficiently
supports complex 3D mass data, although prototypical 3D geo-database
management systems are ready to support such challenging 3D
applications. In this contribution we describe how we reply to these
requirements advancing DB4GeO, our 3D/4D geo-database architecture. The
system architecture and support for geometric, topological and temporal
data are presented in detail. Besides the new spatio-temporal object
model, we introduce new ideas and implementations of DB4GeO such as the
support of GML data and the new WebGL 3D interface. The latter enables
the direct visualization of 3D database query results by a standard web
browser without installing additional software. Examples for 3D
database queries and their visualizations with the new WebGL interface
are demonstrated. Finally, we give an outlook on our future work.
Further extensions of DB4GeO and the support for the data management
for collaborative subway track planning are discussed."

I'd like to see the differences between PostGIS vs DB4GeO features in
regards to 3D geodata. Is DB4GeO more and a playground for researchers?
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