GEOS (Geometry engine-open Source) is a c++++ port for a Java Topology Suite (JTS) for the full C + + implementation of the SQL OpenGIS specification for defining predicates and functions. It includes all the important spatial relationships and operations of high quality implementations, the robust feature version extends to 9 predicate crossover models, implementing operators, buffers (), and all other sfsql functions, including: Area (), Length (), Graph Center (), etc.
GEOS 3.3.4 This version does not abort the Nan overwrite input (#530). Reduce the harmful effects of commonbitsremover superimposed op (#527). Better support for cross compilation (#5.4). Enable overwrite OPS short circuit (#542). Envelope Symdifference (#543) short circuit. Repair supports PHP5.4 (#513). Repair topologypreserhttp://www.aliyun.com/zixun/aggregation/18902.html ">vingsimplifier Invalid closed line output (#508). Lower call to Ptnotinlist, greatly speeding up the Polygonizer (#545).
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