[geos-devel] Possible bug in buffer operation

[Manuel Prieto Villegas]

Hi all,

I found a possible bug in the buffer operator implemented in GEOS. If you make a buffer to the following geometry

POLYGON(
    (
        361104.7302231759 4219479, 
        361104.7302231759 4219544.979270052, 
        361214.1875 4219544.979270052, 
        361214.1875 4219479, 
        361104.7302231759 4219479
    ),
   (
        361167.18750000006 4219522, 
        361162.1875 4219506, 
        361176.1875 4219504, 
        361185.1875 4219511.000000001, 
        361178.1875 4219524, 
        361167.18750000006 4219522
    ),
   (
        361147.1875 4219531, 
        361153.1875 4219517, 
        361167.18750000006 4219522, 
        361162.1875 4219536, 
        361147.1875 4219531
    )
)

the resulting geometry will lost one of the islands. The same operation is performed correctly by the current release of JTS.




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