Simple Features (officially Simple Feature Access) is both an Open Geospatial Consortium (OGC) and International Organization for Standardization (ISO) standard ISO 19125 that specifies a common storage and access model of mostly two-dimensional geographical data (point, line, polygon, multi-point, multi-line, etc.) The ISO/IEC 13249-3 SQL/MM Spatial extends the Simple Features data model mainly with circular interpolations (e.g. circular arcs) and adds other features like coordinate transformations and methods for validating geometries as well as Geography Markup Language support.

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  • Simple Feature Access ist eine Spezifikation des Open Geospatial Consortium, welche eine allgemein gültige Architektur für geografische Daten und deren Geometrien definiert. Die Spezifikation beschreibt einerseits die Speicherung und den Zugriff auf Geometrien und andererseits verschiedene räumliche Operatoren. (de)
  • Simple Features (officially Simple Feature Access) is both an Open Geospatial Consortium (OGC) and International Organization for Standardization (ISO) standard ISO 19125 that specifies a common storage and access model of mostly two-dimensional geographical data (point, line, polygon, multi-point, multi-line, etc.) The ISO 19125 standard comes in two parts. Part one, ISO 19125-1 (SFA-CA for "common architecture"), defines a model for two-dimensional simple features, with linear interpolation between vertices. The data model defined in SFA-CA is a hierarchy of classes. This part also defines representation using Well-Known Text (and Binary). Part 2 of the standard, ISO 19125-2 (SFA-SQL), defines an implementation using SQL. The OpenGIS standard(s) cover implementations in CORBA and OLE/COM as well, although these have lagged behind the SQL one and are not standardized by ISO. The ISO/IEC 13249-3 SQL/MM Spatial extends the Simple Features data model mainly with circular interpolations (e.g. circular arcs) and adds other features like coordinate transformations and methods for validating geometries as well as Geography Markup Language support. (en)
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  • Simple Feature Access ist eine Spezifikation des Open Geospatial Consortium, welche eine allgemein gültige Architektur für geografische Daten und deren Geometrien definiert. Die Spezifikation beschreibt einerseits die Speicherung und den Zugriff auf Geometrien und andererseits verschiedene räumliche Operatoren. (de)
  • Simple Features (officially Simple Feature Access) is both an Open Geospatial Consortium (OGC) and International Organization for Standardization (ISO) standard ISO 19125 that specifies a common storage and access model of mostly two-dimensional geographical data (point, line, polygon, multi-point, multi-line, etc.) The ISO/IEC 13249-3 SQL/MM Spatial extends the Simple Features data model mainly with circular interpolations (e.g. circular arcs) and adds other features like coordinate transformations and methods for validating geometries as well as Geography Markup Language support. (en)
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  • Simple Feature Access (de)
  • Simple Features (en)
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