geo:RelativeLocation

A relative location is a specified distance from a location in a specified direction.

Element information

Content

• Sequence [1..1]
  1. Choice [1..*]
     from subst. group geo:Location
     geo:ArcByCenterPoint    A 2D arc defined by its center point, radius, and bearings at start and end.
     geo:AreaOfInterest    An Area of Interest as defined by a named circle, bounding box, or polygon, used in OGC Open Location Services.
     geo:CircleByCenterPoint    A 2D ArcByCenterPoint with identical start and end angles that forms a full circle.
     geo:CircularArc    A 2D arc defined by its center point, two radii (r[1] > r[2]), and start and end angles.
     geo:Ellipse    An ellipse specified by a point, major axis, minor axis, and rotation.
     geo:EndModeWayPoint    Ending point of a multi-modal route that ends at a transportation mode (e.g. foot, bicycle, taxi, bus, rail, boat, airplane) transfer point.
     geo:Feature    A geospatial feature; any real world object with location; e.g. building, road, river, county, town, parcel, traffic sign.
     geo:FeatureCollection    A collection of geospatial features; any real world objects with location. See: FeatureType.
     geo:Geometry    Any geometry. Specifies a Coordinate Reference System or must inherit one from a containing element.
     geo:LineString    A geometric curve that consists of a single segment with linear interpolation.
     geo:MultiCurve    A geometry collection that includes one or more curves or line strings.
     geo:MultiGeometry    A geometry collection that includes one or more geometries, potentially of different types.
     geo:MultiPoint    A geometry collection that includes one or more points.
     geo:MultiPolygon    A geometry collection that includes one or more Polygons.
     geo:MultiSurface    A geometry collection that includes one or more surfaces or polygons.
     geo:NiemGeographicCoordinate    Deprecated non-standard location using u:GeographicCoordinateType. Use standard gs:Point instead if possible.
     geo:Point    A 2D or 3D geometric point.
     geo:PointOfInterest    Something with a fixed position that may be used as a reference point or a target in an OpenLS service. A POI is the primary output from an OpenLS Directory Service.
     geo:Polygon    A polygon; a geometric surface defined by a single surface patch whose boundary is coplanar.
     geo:Position    An observed or calculated geographic position and quality of position; the primary output from an OpenLS Gateway Service.
     geo:RelativeLocation    A relative location is a specified distance from a location in a specified direction.
     geo:StartModeWayPoint    Starting point of a multi-modal route that starts at a transportation mode (e.g. foot, bicycle, taxi, bus, rail, boat, airplane) transfer point.
     geo:ViaModeWayPoint    Intermediate transportation mode (e.g. foot, bicycle, taxi, bus, rail, boat, airplane) transfer point of a multi-modal route.
  2. geo:Direction [1..*]    
  3. geo:Distance [1..*]    Distance represented as a number with a scale indicated by the value of its uom (Units Of Measure) attribute.

Attributes

Used in

• Type geo:LocationPropertyType
• Type geo:RelativeLocationPropertyType (Element geo:RelativeLocationProperty)
• Type geo:RelativeLocationType (Element geo:RelativeLocation)
• Type geo:GeospatialPropertyType (Elements geo:GeospatialProperty, geo:LocationProperty)

Substitution hierarchy

• geo:Geospatial
  • can be substituted with geo:Location
    • can be substituted with geo:RelativeLocation

Sample instance

<geo:RelativeLocation>
   <geo:ArcByCenterPoint>
      <gml:ArcByCenterPoint numArc="1">
         <gml:pos>1.0 1.0</gml:pos>
         <gml:radius uom="http://www.example.com/">1.0</gml:radius>
         <gml:startAngle uom="http://www.example.com/">1.0</gml:startAngle>
         <gml:endAngle uom="http://www.example.com/">1.0</gml:endAngle>
      </gml:ArcByCenterPoint>
   </geo:ArcByCenterPoint>
   <geo:Direction>
      <gml:direction>
         <gml:DirectionVector>...
         </gml:DirectionVector>
      </gml:direction>
   </geo:Direction>
   <geo:Distance>
      <nc:MeasurePointValue>1.0</nc:MeasurePointValue>
      <nc:MeasureUnitText>string</nc:MeasureUnitText>
      <nc:MeasureCategoryText>string</nc:MeasureCategoryText>
      <nc:MeasureEstimatedIndicator>true</nc:MeasureEstimatedIndicator>
   </geo:Distance>
</geo:RelativeLocation>