Boundary enclosing the dataset expressed as the closed set of (x,y) coordinates of the polygon (last point replicates first point)
Information about spatial, vertical, and temporal extent
Geographic position of the dataset.
Description of a geographic area through the use of a unique name established and maintained by an authority.
Geographic area of the dataset
Extent with respect to date and time
Models the extent or timespan of a dataset's temporal domain.
Models the extent of a dataset's vertical domain.
The datatype in this package is an aggregate of the metadata elements that describe the spatial and temporal extent of the referring entity. The EX_Extent entity contains information about the geographic (EX_GeographicExtent), temporal (EX_TemporalExtent) and the vertical (EX_VerticalExtent) extent of the referring entity. EX_GeographicExtent can be subclassed as EX_BoundingPolygon, EX_GeographicBoundingBox and EX_GeographicDescription. The combined spatial and temporal extent (EX_SpatialTemporalExtent) is an aggregate of EX_GeographicExtent. EX_SpatialTemporalExtent is a subclass of EX_TemporalExtent.
The EX_Extent entity has three optional roles named "geographicElement", "temporalElement", and "verticalElement" and an element called "description". At least one of the four shall be used.
This package is described in ISO19115:2003 in figure A.15 (diagram) and B.3.1 (data dictionary).