EntityQ4167103· pop 6· linked from 10 articlesbufferSign in to savein GIS, a zone around a map feature measured in units of distance or time, useful for proximity analysisConnectionsdigital object identifierEntityEuclidean geometryEntitygeographic information systemEntityCartesian coordinate systemEntitygreat circleEntityvector graphicsEntitymap projectionEntitylocusEntityspherical trigonometryEntityspatial analysisEntityPostGISEntitygeographical featureEntityMinkowski additionEntityerosionEntitydilationEntityArcInfoEntityCategoriesGeographic information systemsGeometrySpatial analysis