Buffer (GIS)
From Infogalactic: the planetary knowledge core
A buffer in GIS is a zone around a map feature measured in units of distance or time. A buffer is useful for proximity analysis.[1]
A buffer is an area defined by the bounding region determined by a set of points at a specified maximum distance from all nodes along segments of an object.
See also
- Dilation (morphology) (positive buffer)
- Erosion (morphology) (negative buffer)
External links
- OGC ST_Buffer function (PostGIS implementation)
References
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- ↑ Wade, T. and Sommer, S. eds. A to Z GIS
