OGCデータとは何？
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OGCデータとは何？
The Open Geospatial Consortium (OGC),は、300以上の企業、政府機関、非営利団体、研究機関からなる国際組織です。その会員は地理空間コンテンツとサービス、GISデータの処理と交換に関する標準の開発と実装を行っています。 <P> Describing a basic data model for geographic features an increasing number of specifications are developed to serve specific needs for interoperable location and geospatial technology, including GIS. Further information can be found under http://www.opengeospatial.org/ . <P> 重要なOGCの規格は次の通りです。 <P>
- WMS - Web Map Service
- WFS - Web Feature Service
- WCS - Web Coverage Service
- CAT - Web Catalog Service
- SFS - Simple Features for SQL
- GML - Geography Markup Language
<P> OGC services are increasingly being used to exchange geospatial data between different GIS implementations and data stores. QGIS can now deal with three of the above specifications, being SFS (though support of the PostgreSQL / PostGIS data provider, see Section #label_postgis), WFS and WMS as a client.
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