// GEOMETRIES (based on JTS http://www.vividsolutions.com/jts/JTSHome.htm) [gis:coordinate] > nt:base mixin - gis:x (DOUBLE) m - gis:y (DOUBLE) m - gis:z (DOUBLE) [gis:geometry] > mix:created, mix:lastModified mixin // either an EPSG code (EPSG:4326 for WGS 84) or a WKT representation - gis:srs (STRING) [gis:point] > gis:geometry, gis:coordinate mixin