/
bg_operators.hpp
199 lines (163 loc) · 6.12 KB
/
bg_operators.hpp
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#ifndef BG_OPERATORS_HPP
#define BG_OPERATORS_HPP
#include "geometry.hpp"
#include <boost/functional/hash/hash.hpp>
template <typename polygon_type_t, typename rhs_t>
bg::model::multi_polygon<polygon_type_t> operator-(
const bg::model::multi_polygon<polygon_type_t>& lhs,
const rhs_t& rhs);
template <typename rhs_t>
multi_polygon_type_fp operator-(const polygon_type_fp& lhs, const rhs_t& rhs);
template <typename rhs_t>
multi_polygon_type_fp operator-(const box_type_fp& lhs, const rhs_t& rhs);
template <typename linestring_type_t, typename rhs_t>
bg::model::multi_linestring<linestring_type_t> operator-(
const bg::model::multi_linestring<linestring_type_t>& lhs,
const rhs_t& rhs);
template <typename linestring_type_t, typename rhs_t>
bg::model::multi_linestring<linestring_type_t> operator&(
const bg::model::multi_linestring<linestring_type_t>& lhs,
const rhs_t& rhs);
template <typename rhs_t>
multi_linestring_type_fp operator&(const linestring_type_fp& lhs,
const rhs_t& rhs);
template <typename polygon_type_t>
bg::model::multi_polygon<polygon_type_t> operator^(
const bg::model::multi_polygon<polygon_type_t>& lhs,
const bg::model::multi_polygon<polygon_type_t>& rhs);
template <typename polygon_type_t, typename rhs_t>
bg::model::multi_polygon<polygon_type_t> operator&(const bg::model::multi_polygon<polygon_type_t>& lhs,
const rhs_t& rhs);
template <typename point_type_t, typename rhs_t>
multi_polygon_type_fp operator&(const bg::model::polygon<point_type_t>& lhs,
const rhs_t& rhs);
template <typename polygon_type_t, typename rhs_t>
bg::model::multi_polygon<polygon_type_t> operator+(const bg::model::multi_polygon<polygon_type_t>& lhs,
const rhs_t& rhs);
multi_polygon_type_fp sum(const std::vector<multi_polygon_type_fp>& mpolys);
multi_polygon_type_fp symdiff(const std::vector<multi_polygon_type_fp>& mpolys);
// It's not great to insert definitions into the bg namespace but they
// are useful for sorting and maps.
namespace boost { namespace geometry { namespace model { namespace d2 {
template <typename T>
extern inline bool operator<(
const boost::geometry::model::d2::point_xy<T>& x,
const boost::geometry::model::d2::point_xy<T>& y) {
return std::tie(x.x(), x.y()) < std::tie(y.x(), y.y());
}
template <typename T>
extern inline boost::geometry::model::d2::point_xy<T> operator-(
const boost::geometry::model::d2::point_xy<T>& lhs,
const boost::geometry::model::d2::point_xy<T>& rhs) {
return {lhs.x()-rhs.x(), lhs.y()-rhs.y()};
}
template <typename T>
extern inline boost::geometry::model::d2::point_xy<T> operator+(
const boost::geometry::model::d2::point_xy<T>& lhs,
const boost::geometry::model::d2::point_xy<T>& rhs) {
return {lhs.x()+rhs.x(), lhs.y()+rhs.y()};
}
template <typename T, typename S>
extern inline boost::geometry::model::d2::point_xy<T> operator/(
const boost::geometry::model::d2::point_xy<T>& lhs,
const S& rhs) {
return {lhs.x()/static_cast<T>(rhs), lhs.y()/static_cast<T>(rhs)};
}
template <typename T, typename S>
extern inline boost::geometry::model::d2::point_xy<T> operator*(
const boost::geometry::model::d2::point_xy<T>& lhs,
const S& rhs) {
return {lhs.x()*static_cast<T>(rhs), lhs.y()*static_cast<T>(rhs)};
}
template <typename T, typename S>
extern inline boost::geometry::model::linestring<T> operator*(
const boost::geometry::model::linestring<T>& lhs,
const S& rhs) {
boost::geometry::model::linestring<T> ret;
ret.reserve(lhs.size());
for (const auto& p : lhs) {
ret.push_back(p*rhs);
}
return ret;
}
template <typename T>
extern inline bool operator==(
const boost::geometry::model::d2::point_xy<T>& x,
const boost::geometry::model::d2::point_xy<T>& y) {
return std::tie(x.x(), x.y()) == std::tie(y.x(), y.y());
}
template <typename T>
extern inline bool operator!=(
const boost::geometry::model::d2::point_xy<T>& x,
const boost::geometry::model::d2::point_xy<T>& y) {
return std::tie(x.x(), x.y()) != std::tie(y.x(), y.y());
}
extern inline point_type_fp floor(const point_type_fp& a) {
return point_type_fp(std::floor(a.x()), std::floor(a.y()));
}
template <typename T>
extern inline std::ostream& operator<<(std::ostream& out, const bg::model::d2::point_xy<T>& t) {
out << bg::wkt(t);
return out;
}
template <typename T>
extern inline std::ostream& operator<<(std::ostream& out, const bg::model::linestring<T>& t) {
out << bg::wkt(t);
return out;
}
}}}} // namespace boost::geometry::model::d2
namespace std {
template <typename A, typename B>
static std::ostream& operator<<(std::ostream& out, const pair<A, B>& p) {
out << "{" << p.first << "," << p.second << "}";
return out;
}
template <typename T>
static std::ostream& operator<<(std::ostream& out, const vector<T>& xs) {
out << "{";
for (const auto& x : xs) {
out << x << ",";
}
out << "}";
return out;
}
template <typename T>
struct hash<boost::geometry::model::d2::point_xy<T>> {
inline std::size_t operator()(const boost::geometry::model::d2::point_xy<T>& p) const {
std::size_t seed = 0;
boost::hash_combine(seed, p.x());
boost::hash_combine(seed, p.y());
return seed;
}
};
template <typename T0, typename T1>
struct hash<std::pair<T0, T1>> {
inline std::size_t operator()(const std::pair<T0, T1>& x) const {
std::size_t seed = 0;
boost::hash_combine(seed, hash<T0>{}(x.first));
boost::hash_combine(seed, hash<T1>{}(x.second));
return seed;
}
};
template <typename T>
struct hash<boost::geometry::model::linestring<T>> {
inline std::size_t operator()(const boost::geometry::model::linestring<T>& xs) const {
std::size_t seed = 0;
for (const auto& x : xs) {
boost::hash_combine(seed, hash<T>{}(x));
}
return seed;
}
};
template <typename T>
struct hash<std::vector<T>> {
inline std::size_t operator()(const vector<T>& xs) const {
std::size_t seed = 0;
for (const auto& x : xs) {
boost::hash_combine(seed, hash<T>{}(x));
}
return seed;
}
};
} // namespace std
#endif //BG_OPERATORS_HPP