a package of GPC (Polygon classic logic operation of the library), and contains polygon seeking direction and the center, polygon area, point and polygon relations function

Packet : 798346cpolygonlib.rar filelist
CPolygonLib\CPolygonLib.dsp
CPolygonLib\CPolygonLib.plg
CPolygonLib\futil.cpp
CPolygonLib\futil.h
CPolygonLib\gpc.c
CPolygonLib\gpc.h
CPolygonLib\polygon.cpp
CPolygonLib\polygon.h
CPolygonLib\soiltex.cpp
CPolygonLib\soiltex.h
CPolygonLib

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