GIS开源库整理

clipper

The Clipper Library performs clipping, and offsetting of both lines and polygons.

http://www.angusj.com/delphi/clipper.php

http://sourceforge.net/projects/polyclipping/files/

http://en.wikipedia.org/wiki/Vatti_clipping_algorithm

CLucene

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CLucene is a C++ port of Lucene.
It is a high-performance, full-featured text search 
engine written in C++. CLucene is faster than lucene
as it is written in C++.
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http://sourceforge.net/projects/clucene/