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| width='90' | '''Signatures'''

|{{Func|geo:boundary|$geometry as element(*)|xs:element(*)~~*~~}}

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| '''Summary'''

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| width='90' | '''Signatures'''

|{{Func|geo:buffer|$geometry as element(*), $distance as xs:double|~~xs:double~~element(*)}}

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| '''Summary'''

| Returns ~~a sequence of zero or more ~~polygonal ~~geometries ~~geometry representing the buffer by distance {{Code|$distance}} of geometry {{Code|$geometry}}a buffer area around this geometry having the given width, in the spatial reference system of ~~$~~geometry. The buffer of a Geometry is the Minkowski sum or difference of the geometry with a disc of radius abs(distance). The buffer is constructed using 8 segments per quadrant to represent curves.

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| '''Errors'''

Retrieved from "http://docs.basex.org/wiki/Special:MobileDiff/8805"

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