Geographic Extent Name Register
about the GEN Register
The GEN Register is an online resource that contains the geographic extents of thousands of geographic objects. These objects range from maps sheets, navigational charts, oceans and rivers, through to States, Territories and Local Government Areas.
The register has been developed by ANZLIC—the Spatial Information Council to assist users complete the GEN element of the ANZLIC metadata guidelines. This element requires users to specify the ordinary name of one or more predefined geographic objects that reasonably show the geographic coverage of their dataset.
In addition to enabling consistent communication of ANZLIC compliant GENs, the register provides authoritative listings of allowable geographic objects and their respective attributes for use within the "place-keyword" element of the ANZMETA Document Type Definition (DTD). These attributes include the three components of the GEN element as defined in the guidelines:
Geographic Bounding Box (GBB) coordinates are also provided for each geographic object. The incorporation of these is important for two reasons:
Format of the GEN Register
For each GEN Category there is an associated GEN file containing the list of Geographic Extent Names, their attributes and a metadata record. These files are in simple delimited format (pipe "|" is the delimiter).
ID = Code or numeric identifier of the GEN
The name of each GEN Category and its associated GEN file is held within a special file called 'anzlic-gencategories.txt'. It is important that this file is used by metadata tools to ensure that the requested GEN Category is valid and it refers to the appropriate GEN file.
Using the GEN files
The downloadable GEN files can be imported into metadata tools for use when entering metadata records. It is the responsibility of metadata tool developers to ensure that their tools can:
There are two types of files available:
For the individual files, the category name is not contained within the records. Hence, metadata tool developers need to keep in mind that the name of each GEN Category and its associated GEN file is contained in the file 'anzlic-gencategories.txt'.
GEN Register Manager
Phone: +61 2 6249 9735
The GEN Register is maintained by Geoscience Australia on behalf of ANZLIC.
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