The GeoSPARQL USER GUIDE (1/19/2012) is currently in draft by authors Dave Kolas (dkolas@bbn.com) and Robert Battle (rbattle@bbn.com). When complete, a copy will be available via links on this page.

GeoSPARQL is an emerging standard within the Open Geospatial Consortium (OGC). Its intent is to provide a standard way to express and query spatial elements in RDF, so that users can exchange data easily, and triple store implementors can have a standard format for indexing. The purpose of this document is to provide an easy introduction to GeoSPARQL for Semantic Web users. The USER Guide assumes a working understanding of RDF and RDFS, and the Turtle serialization of RDF. This document is not intended to be exhaustive, but more topics and deeper explanations may be added over time.

The following in a table of Contents for the Guide.

• Introduction

• GeoSPARQL at a Glance

• The GeoSPARQL Ontology

• • GeoSPARQL Key Terms

• • Linking an ontology to GeoSPARQL

• • Example Ontology

• • Example Data

• • Converting W3C Geo Data

• Querying Your Data

• • Retrieving Geometries

• • Topological Relationships

• • • Topological Functions

• • • Topological Properties

• • Other Query Functions

• Feature to Feature relations

• Coordinate Reference Systems

• Using GML instead of WKT

• Alternate spatial relation types

• Prefixes