PostGIS
2.5.1devr@@SVN_REVISION@@

Returns true if P is on the same side of the plane partition defined by A1/A3 as A2 is.
Only makes sense if P has already been determined to be on the circle defined by A1/A2/A3.
Definition at line 85 of file lwalgorithm.c.
References lw_segment_side().
Referenced by lw_dist2d_arc_arc(), lw_dist2d_pt_arc(), lw_dist2d_seg_arc(), and ptarrayarc_contains_point_partial().