cbuffer_trav_area cbufferarr_circles circle_type ensure_circle_type geoarr_remove_duplicates geoarr_sort geoarr_sort_cmp geocircle_make lwcircle_make lwcircstring_from_lwpointarray tcbuffer_trav_area tcbufferinst_trav_area tcbuffersegm_trav_area tcbufferseq_discstep_trav_area tcbufferseq_linear_trav_area tcbufferseq_trav_area tcbufferseqset_linear_trav_area tcbufferseqset_step_trav_area tcbufferseqset_trav_area trapezoid_make

lwcircle_make() LWGEOM * lwcircle_make ( double  x, double  y, double  radius, int32_t  srid  ) Return a circle created from a central point and a radius.