File list (Check if you may need any files):
多边形裁减
..........\A General Polygon Clipping Library.files
..........\........................................\union.gif
..........\........................................\xor.gif
..........\A General Polygon Clipping Library.htm
..........\Alan Murta's Public Software (gpc).files
..........\........................................\x-click-but21.gif
..........\........................................\xor.gif
..........\Alan Murta's Public Software (gpc).htm
..........\gpc232.zip
..........\gpc_test.zip
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