[geos-devel] buffer 0 distance

strk strk at keybit.net
Thu Dec 11 07:32:56 EST 2003

I've found no special handling for buffer calls with
0 as the distance parameter, but indeed it seems to
be needed since on buffer('LINESTRING(0 0, 45 54)', 0)
call a 'GEMETRYCOLLECTION(EMPTY)' is returned.

Do you all think returning a clone of the passed geometry
is a good policy when asked to return a buffer(0) of it ?

Please let me know.


PS: Dave, I've discovered this trying again aime's bug.
    the buffer(geom,0) was returning a different geometry
    then the input once. After modification of the BufferOp
    made sure result was exact copy of input the bug showed

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