[postgis-tickets] [PostGIS] #3377: ST_Simplify for geography

[PostGIS]

#3377: ST_Simplify for geography
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 Reporter:  mwtoews      |      Owner:  pramsey
     Type:  enhancement  |     Status:  new
 Priority:  medium       |  Milestone:  PostGIS Future
Component:  postgis      |    Version:
 Keywords:               |
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 Currently, ST_Simplify works only on geometries in 2D Cartesian space.
 Simplifying geography objects is only possible by projecting into an
 appropriate spatial reference system (i.e. _ST_BestSRID), then back to
 geography.

 A recently published article
 [http://dx.doi.org/10.1016/j.cageo.2015.07.011 "Robust line simplification
 on the surface of the sphere" by José Luis García Pallero (2015)]
 describes a possible technique, which is
 [https://bitbucket.org/jgpallero/rls implemented in C], with an Apache
 License 2.0. Inline comments are in Spanish. Additional speed is gained
 from an optional OpenMP implementation. The adaptation to work on the
 sphere is based on previous work
 [http://dx.doi.org/10.1016/j.cageo.2013.08.011 "Robust line simplification
 on the plane" (2013)].

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3377>
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