Geocoordinates Transformer

A geocoordinates transformer from UTM (x, y) to WGS84 (lat, long) for POINT geometries.

Try it out

First, obtain the latest release.

Next, start the transformer:

java -jar p3-geocoordinates-transformer-v*-jar-with-dependencies.jar

To obtain the supported input/output-formats of the transformer, query it with the curl-utility:

curl http://localhost:7100

For advanced testing of the transformer, refer to the section "Usage" just below.

Compiling and Running

Compile the application running the command

mvn install

Start the application using the command

mvn exec:java

Usage

The transformer adds wgs84:lat and wgs84:long properties to the subjects of gs:asWKT property where wgs84 is the prefix of the namespace http://www.w3.org/2003/01/geo/wgs84_pos# and gs is the prefix for http://www.opengis.net/ont/geosparql#

As an example we consider the position of an architectural heritage in UTM coordinates serialized as WKT (Well-Known-Text)

@prefix schema: <http://schema.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix gs: <http://www.opengis.net/ont/geosparql#> .
@prefix wgs84: <http://www.w3.org/2003/01/geo/wgs84_pos#> .

<http://fusepool.eu/res/trentino/39.0009> a schema:TouristAttraction ;
                                       rdfs:label "Chiesa della Madonna della Neve" ;
                                       gs:asWKT "POINT (712183.260172061738558 5150927.968433328904212)" .

The data file "trentino-architectural-heritage.ttl" is sent to the transformer

curl -i -X POST -H "ContentType: text/turtle" -d @trentino-architectural-heritage.ttl http://localhost:7100

After the coordinates transformation from UTM to WGS84 two properties for the latitude and longitude are added to the subject of gs:asWKT property

@prefix schema: <http://schema.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix gs: <http://www.opengis.net/ont/geosparql#> .
@prefix wgs84: <http://www.w3.org/2003/01/geo/wgs84_pos#> .

<http://fusepool.eu/res/trentino/39.0009> a schema:TouristAttraction ;
                                       rdfs:label "Chiesa della Madonna della Neve" ;
                                       gs:asWKT "POINT (712183.260172061738558 5150927.968433328904212)" ;
                                       wgs84:lat "46.47845602881098" ;
                                       wgs84:long "11.764220393196" .