osm2rdf

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Do we need FOUR separate osm2rdf-specific prefixes

2

There are currently four different osm2rdf-specific prefixes, namely: ``` @prefix osm2rdf: . @prefix osm2rdfkey: . @prefix osm2rdfgeom: . @prefix osm2rdfmember: . ``` [Try it on Qlever](https://qlever.cs.uni-freiburg.de/osm-planet/yX7TzI) Is this useful or...

hannahbast

This PR contains the stuff added during the debug process for #80 that we should keep in master. This mainly includes some safeguards in `areaInAreaApprox` and `boxIdIsect` which explicitly catch...

patrickbr

* Removes osm2rdfgeom namespace (`osm2rdfgeom:x` -> `osm2rdf:x`) * Adds missing dataset-id to way intermediates (`osm2rdf:way_123` -> `osm2rdf:osmway_123`)

lehmann-4178656ch

Convert OpenStreetMap wikimedia_commons tags to IRIs

3

In OpenStreetMap and OpenHistoricalMap, the [`wikimedia_commons`](https://wiki.openstreetmap.org/wiki/Key:wikimedia_commons) key can be set to a page name on Wikimedia Commons. The page is typically a file description page in the File: namespace, but...

1ec5

Way geometry intermediate objects in wrong namespace

1

The intermediate geometry objects to which the `geo:asWKT` predicates are attached should be in the `NAMESPACE__OSM2RDF_GEOM` namespace (`osm2rdfgeom:` in the generated `.ttl`). For ways, these are in the `NAMESPACE__OSM2RDF` namespace...

patrickbr

Better GeoSPARQL conformity

5

We should be fully conform with the GeoSPARQL standards for types [geo:SpatialObject](https://opengeospatial.github.io/ogc-geosparql/geosparql11/spec.html#_standard_properties_for_geospatialobject) and [geo:Feature](https://opengeospatial.github.io/ogc-geosparql/geosparql11/spec.html#_standard_properties_for_geofeature). In particular, a `geo:Feature` must have the following properties: `geo:hasGeometry, geo:hasDefaultGeometry, geo:hasCentroid` and `geo:hasBoundingBox` That is,...

patrickbr

Introduce writeMeta and use for Nodes, Relations and Ways

1

`writeMeta` adds Facts about `changeset`, `timestamp`, `user`, `version` and `visible`. If these values are not set `0`, `1970-01-01 00:00:00` and `""` depending on the key will be answered.

lehmann-4178656ch

It would be nice for the TTL dumps to contain some information on how they were created. This PR so far adds a single triple containing the `VERSION_GIT_FULL` string. It...

patrickbr

Add inner and outer members of boundary and multipolygon relations

8

[This query](https://qlever.cs.uni-freiburg.de/ohm-planet/N2fmIc) shows that no boundary or multipolygon relation in the OSM Planet dataset has `osmrel:member`s that are ways with the role `inner` or `outer`. The only members in the...

1ec5

Add timestamps to TTL dumps

1

@lehmann-4178656ch @patrickbr The last three example queries on https://wiki.openstreetmap.org/wiki/SPARQL_vs_Overpass_QL_examples involve timestamp information. Is this information contained in the PBF files (at least in `planet-latest.osm.obf`)? If yes, I would suggest adding...

hannahbast