cbuffer_collinear cbuffer_contains cbuffer_covers cbuffer_disjoint cbuffer_distance cbuffer_dwithin cbuffer_intersects cbuffer_parse cbuffer_point_p cbuffer_touches cbuffer_transf_pj cbuffer_wkt_out CbufferPGetDatum cbuffersegm_distance_turnpt cbuffersegm_interpolate cbuffersegm_locate contains_cbuffer_cbuffer covers_cbuffer_cbuffer datum_cbuffer_contains datum_cbuffer_covers datum_cbuffer_disjoint datum_cbuffer_distance datum_cbuffer_dwithin datum_cbuffer_intersects datum_cbuffer_round datum_cbuffer_touches DatumGetCbufferP disjoint_cbuffer_cbuffer dwithin_cbuffer_cbuffer ensure_valid_cbuffer_cbuffer ensure_valid_cbuffer_geo ensure_valid_cbuffer_stbox ensure_valid_cbufferset_cbuffer intersects_cbuffer_cbuffer PG_GETARG_CBUFFER_P PG_RETURN_CBUFFER_P touches_cbuffer_cbuffer

cbuffer_dwithin() int cbuffer_dwithin ( const Cbuffer *  cb1, const Cbuffer *  cb2, double  dist  ) Return true if two 2D circular buffers are within a distance. Parameters [in] cb1,cb2 Circular buffers [in] dist Distance Note The function assumes that all validity tests have been previously done