1 /* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 2 3 This program is free software; you can redistribute it and/or modify 4 it under the terms of the GNU General Public License, version 2.0, 5 as published by the Free Software Foundation. 6 7 This program is also distributed with certain software (including 8 but not limited to OpenSSL) that is licensed under separate terms, 9 as designated in a particular file or component or in included license 10 documentation. The authors of MySQL hereby grant you an additional 11 permission to link the program and your derivative works with the 12 separately licensed software that they have included with MySQL. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License, version 2.0, for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ 22 23 #ifndef ITEM_GEOFUNC_BGWRAP_INCLUDED 24 #define ITEM_GEOFUNC_BGWRAP_INCLUDED 25 26 /** 27 Wraps and dispatches type specific BG function calls according to operation 28 type and both operands' types. 29 30 We want to isolate boost header file inclusion only inside this file, so we 31 put this class declaration in an internal header file. And we want to make the 32 methods static since no state is needed here. 33 34 @tparam Geom_types Geometry types definitions. 35 */ 36 37 #include <set> 38 39 template<typename Geom_types> 40 class BG_wrap { 41 public: 42 43 typedef typename Geom_types::Point Point; 44 typedef typename Geom_types::Linestring Linestring; 45 typedef typename Geom_types::Polygon Polygon; 46 typedef typename Geom_types::Multipoint Multipoint; 47 typedef typename Geom_types::Multilinestring Multilinestring; 48 typedef typename Geom_types::Multipolygon Multipolygon; 49 typedef typename Geom_types::Coordinate_type Coord_type; 50 typedef typename Geom_types::Coordinate_system Coordsys; 51 52 // For abbrievation. 53 typedef Item_func_spatial_rel Ifsr; 54 typedef std::set<Point, bgpt_lt> Point_set; 55 typedef std::vector<Point> Point_vector; 56 57 static int point_within_geometry(Geometry *g1, Geometry *g2, 58 my_bool *pnull_value); 59 60 static int multipoint_within_geometry(Geometry *g1, Geometry *g2, 61 my_bool *pnull_value); 62 63 static int linestring_within_geometry(Geometry *g1, Geometry *g2, 64 my_bool *pnull_value); 65 static int multilinestring_within_geometry(Geometry *g1, Geometry *g2, 66 my_bool *pnull_value); 67 static int polygon_within_geometry(Geometry *g1, Geometry *g2, 68 my_bool *pnull_value); 69 static int multipolygon_within_geometry(Geometry *g1, Geometry *g2, 70 my_bool *pnull_value); 71 72 static int multipoint_equals_geometry(Geometry *g1, Geometry *g2, 73 my_bool *pnull_value); 74 75 static int point_disjoint_geometry(Geometry *g1, Geometry *g2, 76 my_bool *pnull_value); 77 static int multipoint_disjoint_geometry(Geometry *g1, Geometry *g2, 78 my_bool *pnull_value); 79 80 static int linestring_disjoint_geometry(Geometry *g1, Geometry *g2, 81 my_bool *pnull_value); 82 static int multilinestring_disjoint_geometry(Geometry *g1, Geometry *g2, 83 my_bool *pnull_value); 84 static int polygon_disjoint_geometry(Geometry *g1, Geometry *g2, 85 my_bool *pnull_value); 86 static int multipolygon_disjoint_geometry(Geometry *g1, Geometry *g2, 87 my_bool *pnull_value); 88 static int point_intersects_geometry(Geometry *g1, Geometry *g2, 89 my_bool *pnull_value); 90 static int multipoint_intersects_geometry(Geometry *g1, Geometry *g2, 91 my_bool *pnull_value); 92 static int linestring_intersects_geometry(Geometry *g1, Geometry *g2, 93 my_bool *pnull_value); 94 static int multilinestring_intersects_geometry(Geometry *g1, Geometry *g2, 95 my_bool *pnull_value); 96 static int polygon_intersects_geometry(Geometry *g1, Geometry *g2, 97 my_bool *pnull_value); 98 static int multipolygon_intersects_geometry(Geometry *g1, Geometry *g2, 99 my_bool *pnull_value); 100 static int linestring_crosses_geometry(Geometry *g1, Geometry *g2, 101 my_bool *pnull_value); 102 static int multipoint_crosses_geometry(Geometry *g1, Geometry *g2, 103 my_bool *pnull_value); 104 static int multilinestring_crosses_geometry(Geometry *g1, Geometry *g2, 105 my_bool *pnull_value); 106 static int multipoint_overlaps_multipoint(Geometry *g1, Geometry *g2, 107 my_bool *pnull_value); 108 static int point_touches_geometry(Geometry *g1, Geometry *g2, 109 my_bool *pnull_value); 110 static int multipoint_touches_geometry(Geometry *g1, Geometry *g2, 111 my_bool *pnull_value); 112 static int linestring_touches_geometry(Geometry *g1, Geometry *g2, 113 my_bool *pnull_value); 114 static int multilinestring_touches_polygon(Geometry *g1, Geometry *g2, 115 my_bool *pnull_value); 116 static int multilinestring_touches_geometry(Geometry *g1, Geometry *g2, 117 my_bool *pnull_value); 118 static int polygon_touches_geometry(Geometry *g1, Geometry *g2, 119 my_bool *pnull_value); 120 static int multipolygon_touches_geometry(Geometry *g1, Geometry *g2, 121 my_bool *pnull_value); 122 123 private: 124 template<typename Geom_type> 125 static int multipoint_disjoint_geometry_internal(const Multipoint &mpts1, 126 const Geom_type &geom); 127 template<typename Geom_type> 128 static int multipoint_disjoint_multi_geometry(const Multipoint &mpts, 129 const Geom_type &geom); 130 template <typename GeomType> 131 static int multipoint_within_geometry_internal(const Multipoint &mpts, 132 const GeomType &geom); 133 static int multipoint_within_multipolygon(const Multipoint &mpts, 134 const Multipolygon &mplgn); 135 };// BG_wrap 136 137 138 /* 139 Call a BG function with specified types of operands. We have to create 140 geo1 and geo2 because operands g1 and g2 are created without their WKB data 141 parsed, so not suitable for BG to use. geo1 will share the same copy of WKB 142 data with g1, also true for geo2. 143 */ 144 #define BGCALL(res, bgfunc, GeoType1, g1, GeoType2, g2, pnullval) do { \ 145 const void *pg1= g1->normalize_ring_order(); \ 146 const void *pg2= g2->normalize_ring_order(); \ 147 if (pg1 != NULL && pg2 != NULL) \ 148 { \ 149 GeoType1 geo1(pg1, g1->get_data_size(), g1->get_flags(), \ 150 g1->get_srid()); \ 151 GeoType2 geo2(pg2, g2->get_data_size(), g2->get_flags(), \ 152 g2->get_srid()); \ 153 res= boost::geometry::bgfunc(geo1, geo2); \ 154 } \ 155 else \ 156 { \ 157 my_error(ER_GIS_INVALID_DATA, MYF(0), "st_" #bgfunc); \ 158 (*(pnullval))= 1; \ 159 } \ 160 } while (0) 161 162 #endif // ITEM_GEOFUNC_BGWRAP_INCLUDED 163