PostGIS 1.5.8 Manual - Fedora Project Packages GIT repositories

PostGIS 1.5.8 Manual291 / 310A.9 Release 1.5.0Release date: 2010/02/04This release provides support for geographic coordinates (lat/lon) via a new GEOGRAPHY type. Also performance enhancements,new input format support (GML,KML) and general upkeep.A.9.1API StabilityThe public API of PostGIS will not change during minor (0.0.X) releases.The definition of the =~ operator has changed from an exact geometric equality check to a bounding box equality check.A.9.2CompatibilityGEOS, Proj4, and LibXML2 are now mandatory dependenciesThe library versions below are the minimum requirements for PostGIS 1.5PostgreSQL 8.3 and higher on all platformsGEOS 3.1 and higher only (GEOS 3.2+ to take advantage of all features)LibXML2 2.5+ related to new ST_GeomFromGML/KML functionalityProj4 4.5 and higher onlyA.9.3New FeaturesSection 8.9.1Added Hausdorff distance calculations (#209) (Vincent Picavet)Added parameters argument to ST_Buffer operation to support one-sided buffering and other buffering styles (Sandro Santilli)Addition of other Distance related visualization and analysis functions (Nicklas Aven)• ST_ClosestPoint• ST_DFullyWithin• ST_LongestLine• ST_MaxDistance• ST_ShortestLineST_DumpPoints (Maxime van Noppen)KML, GML input via ST_GeomFromGML and ST_GeomFromKML (Olivier Courtin)Extract homogeneous collection with ST_CollectionExtract (Paul Ramsey)Add measure values to an existing linestring with ST_AddMeasure (Paul Ramsey)History table implementation in utils (George Silva)Geography type and supporting functions• Spherical algorithms (Dave Skea)• Object/index implementation (Paul Ramsey)• Selectivity implementation (Mark Cave-Ayland)• Serializations to KML, GML and JSON (Olivier Courtin)• ST_Area, ST_Distance, ST_DWithin, ST_GeogFromText, ST_GeogFromWKB, ST_Intersects, ST_Covers, ST_Buffer (PaulRamsey)