Public comment requested: Simple Features 2021

Please note:  This Request is scheduled to close on 26 August 2021
Open Date: 
Tuesday, 2021-07-27
Closing Date: 
Thursday, 2021-08-26

The Open Geospatial Consortium (OGC) seeks public comment on an update to the Simple Features Standard. 

Simple Features, OGC’s earliest standard and jointly published with ISO, describes how a user can model the location of “features” (a geometric representation of anything of interest) in a 2-dimensional space representing the surface of a planet as a geoid and any globe or map derived through a projection. 

In technical terms, Simple Features can model geometries which display geographic features of 1-dimension (curves) and 2-dimension (areas) defined by one-dimension boundary curves. If the application requires elevation, then the uses of latitude (φ), longitude (λ) and elevation (h) can be added.

The update brings two major changes (that won’t affect compatibility with existing implementations):

  • Geometric calculations of distance and area using Differential Geometry to directly transform latitude and longitude to meters, enabling to measure lengths or line strings length (as meters) and polygonal area (in square meters). 
  • Programming in both compiled programming (e.g. C++) and web scripting languages such as JSON (JavaScript Object Notation) with dynamic features as well as support for existing data models.

Update of the Simple Features Standard will ultimately result in a multi-part Standard that references the OGC Features and Geometries Abstract Specification (Topic 1) and supports both static and dynamic data models.


Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template


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