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From Sally Khudairi ...@apache.org>
Subject [ANNOUNCE] Apache geospatial projects support OGC standards, welcome proposals for ApacheCon
Date Mon, 11 Jan 2016 09:52:40 GMT
>> this announcement is available online at http://s.apache.org/r4


by ASF Members Martin Desruisseaux and Sergio Fernández 
The Apache Software Foundation[1] provides support for the Apache Community of Open Source
software projects. Various recent Apache projects have a geospatial focus. 

One of them, the Spatial Information System (SIS) project[2], has from the beginning been
committed to the implementation of OGC standards. SIS is a free software Java language library
for developing geospatial applications. SIS enables efficient representation of coordinates
for searching, data clustering, archiving and other spatial functions. The library implements
OGC GeoAPI Implementation Specification 3.0[3] interfaces for use in desktop or server applications.
The Apache SIS project recently released version 0.6 of their Java library, with support for
ISO 19115 metadata and ISO 19111[4] referencing by coordinates. This library is among the
first implementations of ISO 19162[5], also published as the OGC Well-known text representation
of coordinate reference systems[6]. Apache SIS also provides support for reading and writing
Coordinate Reference System (CRS) objects from GML documents and performing map projections
with those CRSs. The Apache SIS metadata model has been updated to the ISO 19115-1 standard
published in 2015 while maintaining compatibility (as deprecated methods) with the older version
published in 2003. This update also integrates the ISO 19115-2 extension for imagery. 

Recently developers of Apache Marmotta[7], an Apache Software Foundation project that provides
an open platform for Linked Data, have been working, in collaboration with the Google's Summer
of Code 2015, to extend their triplestore[8] (KiWi[9]) to support GeoSPARQL[10]. KiWi is a
high performance transactional triplestore backend for Sesame[11] building on top of relational
databases. It has optional support for rule-based reasoning and versioning. The new extension
to KiWi makes use of the spatial support that PostgreSQL provides with the PostGIS[12] extension,
providing a full open source GeoSPARQL stack. This new feature is expected to be shipped in
the upcoming 3.4 release, providing new geospatial support for querying data in many of the
publishing scenarios in which Marmotta is being used (e.g. tourism[13]). 

There is interest on organizing a dedicated geospatial track in the upcoming ApacheCon[14]
in Vancouver. The community invites everybody interested in the topic to submit a talk --the
Apache page on MarkMail where you can sign in to submit a topic is available at http://markmail.org/message/2gypkad7f5xcjzyy



Martin Desruisseaux, Manager of R&D at Geomatys, was one of the initiators of the OGC
GeoAPI project. Sergio Fernández is a software engineer at Redlink GmbH and a lecturer at
the University of Applied Sciences of Salzburg. Both are committers and members of the Apache
Software Foundation.

[1] http://www.apache.org/
[2] http://sis.apache.org/
[3] http://www.opengeospatial.org/standards/geoapi
[4] http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=44075
[5] http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=63094
[6] http://www.opengeospatial.org/standards/wkt-crs
[7] http://marmotta.apache.org/
[8] https://en.wikipedia.org/wiki/Triplestore
[9] http://marmotta.incubator.apache.org/kiwi/introduction.html
[10] http://www.opengeospatial.org/standards/geosparql
[11] http://rdf4j.org/
[12] http://postgis.net/
[13] http://tourpack.sti2.at/
[14] http://apachecon.com/

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