Chris@16: /*
Chris@16:   Copyright 2008 Intel Corporation
Chris@16: 
Chris@16:   Use, modification and distribution are subject to the Boost Software License,
Chris@16:   Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:   http://www.boost.org/LICENSE_1_0.txt).
Chris@16: */
Chris@16: #ifndef BOOST_POLYGON_POLYGON_45_SET_CONCEPT_HPP
Chris@16: #define BOOST_POLYGON_POLYGON_45_SET_CONCEPT_HPP
Chris@16: #include "polygon_45_set_data.hpp"
Chris@16: #include "polygon_45_set_traits.hpp"
Chris@16: #include "detail/polygon_45_touch.hpp"
Chris@16: namespace boost { namespace polygon{
Chris@16: 
Chris@16:   template <typename T, typename T2>
Chris@16:   struct is_either_polygon_45_set_type {
Chris@16:     typedef typename gtl_or<typename is_polygon_45_set_type<T>::type, typename is_polygon_45_set_type<T2>::type >::type type;
Chris@16:   };
Chris@16: 
Chris@16:   template <typename T>
Chris@16:   struct is_polygon_45_or_90_set_type {
Chris@16:     typedef typename gtl_or<typename is_polygon_45_set_type<T>::type, typename is_polygon_90_set_type<T>::type >::type type;
Chris@16:   };
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type>::type>::type,
Chris@16:                        typename polygon_45_set_traits<polygon_set_type>::iterator_type>::type
Chris@16:   begin_45_set_data(const polygon_set_type& polygon_set) {
Chris@16:     return polygon_45_set_traits<polygon_set_type>::begin(polygon_set);
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type>::type>::type,
Chris@16:                        typename polygon_45_set_traits<polygon_set_type>::iterator_type>::type
Chris@16:   end_45_set_data(const polygon_set_type& polygon_set) {
Chris@16:     return polygon_45_set_traits<polygon_set_type>::end(polygon_set);
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                        bool>::type
Chris@16:   clean(const polygon_set_type& polygon_set) {
Chris@16:     return polygon_45_set_traits<polygon_set_type>::clean(polygon_set);
Chris@16:   }
Chris@16: 
Chris@16:   //assign
Chris@16:   template <typename polygon_set_type_1, typename polygon_set_type_2>
Chris@16:   typename enable_if< typename gtl_and< typename gtl_if<typename is_mutable_polygon_45_set_type<polygon_set_type_1>::type>::type,
Chris@16:                                          typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type_2>::type>::type>::type,
Chris@16:                        polygon_set_type_1>::type &
Chris@16:   assign(polygon_set_type_1& lvalue, const polygon_set_type_2& rvalue) {
Chris@16:     polygon_45_set_mutable_traits<polygon_set_type_1>::set(lvalue, begin_45_set_data(rvalue), end_45_set_data(rvalue));
Chris@16:     return lvalue;
Chris@16:   }
Chris@16: 
Chris@16:   //get trapezoids
Chris@16:   template <typename output_container_type, typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                        void>::type
Chris@16:   get_trapezoids(output_container_type& output, const polygon_set_type& polygon_set) {
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type>::coordinate_type> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.get_trapezoids(output);
Chris@16:   }
Chris@16: 
Chris@16:   //get trapezoids
Chris@16:   template <typename output_container_type, typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                        void>::type
Chris@16:   get_trapezoids(output_container_type& output, const polygon_set_type& polygon_set, orientation_2d slicing_orientation) {
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type>::coordinate_type> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.get_trapezoids(output, slicing_orientation);
Chris@16:   }
Chris@16: 
Chris@16:   //equivalence
Chris@16:   template <typename polygon_set_type_1, typename polygon_set_type_2>
Chris@16:   typename enable_if< typename gtl_and_3<typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type_1>::type>::type,
Chris@16:                                           typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type_2>::type>::type,
Chris@16:                                           typename gtl_if<typename is_either_polygon_45_set_type<polygon_set_type_1,
Chris@16:                                                                                                  polygon_set_type_2>::type>::type>::type,
Chris@16:                        bool>::type
Chris@16:   equivalence(const polygon_set_type_1& lvalue,
Chris@16:               const polygon_set_type_2& rvalue) {
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type_1>::coordinate_type> ps1;
Chris@16:     assign(ps1, lvalue);
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type_2>::coordinate_type> ps2;
Chris@16:     assign(ps2, rvalue);
Chris@16:     return ps1 == ps2;
Chris@16:   }
Chris@16: 
Chris@16:   //clear
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_mutable_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                        void>::type
Chris@16:   clear(polygon_set_type& polygon_set) {
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type>::coordinate_type> ps;
Chris@16:     assign(polygon_set, ps);
Chris@16:   }
Chris@16: 
Chris@16:   //empty
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename gtl_if<typename is_mutable_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                        bool>::type
Chris@16:   empty(const polygon_set_type& polygon_set) {
Chris@16:     if(clean(polygon_set)) return begin_45_set_data(polygon_set) == end_45_set_data(polygon_set);
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type>::coordinate_type> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.clean();
Chris@16:     return ps.empty();
Chris@16:   }
Chris@16: 
Chris@16:   //extents
Chris@16:   template <typename polygon_set_type, typename rectangle_type>
Chris@16:   typename enable_if<
Chris@16:     typename gtl_and< typename gtl_if<typename is_mutable_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16:                       typename is_mutable_rectangle_concept<typename geometry_concept<rectangle_type>::type>::type>::type,
Chris@16:     bool>::type
Chris@16:   extents(rectangle_type& extents_rectangle,
Chris@16:           const polygon_set_type& polygon_set) {
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<typename polygon_45_set_traits<polygon_set_type>::coordinate_type> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     return ps.extents(extents_rectangle);
Chris@16:   }
Chris@16: 
Chris@16:   //area
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::area_type>::type
Chris@16:   area(const polygon_set_type& polygon_set) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     typedef polygon_45_with_holes_data<Unit> p_type;
Chris@16:     typedef typename coordinate_traits<Unit>::area_type area_type;
Chris@16:     std::vector<p_type> polys;
Chris@16:     assign(polys, polygon_set);
Chris@16:     area_type retval = (area_type)0;
Chris@16:     for(std::size_t i = 0; i < polys.size(); ++i) {
Chris@16:       retval += area(polys[i]);
Chris@16:     }
Chris@16:     return retval;
Chris@16:   }
Chris@16: 
Chris@16:   //interact
Chris@16:   template <typename polygon_set_type_1, typename polygon_set_type_2>
Chris@16:   typename enable_if <
Chris@16:     typename gtl_and< typename gtl_if<typename is_mutable_polygon_45_set_type<polygon_set_type_1>::type>::type,
Chris@16:                       typename gtl_if<typename is_polygon_45_or_90_set_type<polygon_set_type_2>::type>::type >::type,
Chris@16:     polygon_set_type_1>::type&
Chris@16:   interact(polygon_set_type_1& polygon_set_1, const polygon_set_type_2& polygon_set_2) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type_1>::coordinate_type Unit;
Chris@16:     std::vector<polygon_45_data<Unit> > polys;
Chris@16:     assign(polys, polygon_set_1);
Chris@16:     std::vector<std::set<int> > graph(polys.size()+1, std::set<int>());
Chris@16:     connectivity_extraction_45<Unit> ce;
Chris@16:     ce.insert(polygon_set_2);
Chris@16:     for(std::size_t i = 0; i < polys.size(); ++i){
Chris@16:       ce.insert(polys[i]);
Chris@16:     }
Chris@16:     ce.extract(graph);
Chris@16:     clear(polygon_set_1);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     for(std::set<int>::iterator itr = graph[0].begin(); itr != graph[0].end(); ++itr){
Chris@16:       ps.insert(polys[(*itr)-1]);
Chris@16:     }
Chris@16:     assign(polygon_set_1, ps);
Chris@16:     return polygon_set_1;
Chris@16:   }
Chris@16: 
Chris@16: //   //self_intersect
Chris@16: //   template <typename polygon_set_type>
Chris@16: //   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type>::type,
Chris@16: //                        polygon_set_type>::type &
Chris@16: //   self_intersect(polygon_set_type& polygon_set) {
Chris@16: //     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16: //     //TODO
Chris@16: //   }
Chris@16: 
Chris@16:   template <typename polygon_set_type, typename coord_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   resize(polygon_set_type& polygon_set, coord_type resizing,
Chris@16:          RoundingOption rounding = CLOSEST, CornerOption corner = INTERSECTION) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.resize(resizing, rounding, corner);
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   bloat(polygon_set_type& polygon_set,
Chris@16:         typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type bloating) {
Chris@16:     return resize(polygon_set, static_cast<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>(bloating));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   shrink(polygon_set_type& polygon_set,
Chris@16:         typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type shrinking) {
Chris@16:     return resize(polygon_set, -(typename polygon_45_set_traits<polygon_set_type>::coordinate_type)shrinking);
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   grow_and(polygon_set_type& polygon_set,
Chris@16:         typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type bloating) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     std::vector<polygon_45_data<Unit> > polys;
Chris@16:     assign(polys, polygon_set);
Chris@16:     clear(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     for(std::size_t i = 0; i < polys.size(); ++i) {
Chris@16:       polygon_45_set_data<Unit> tmpPs;
Chris@16:       tmpPs.insert(polys[i]);
Chris@16:       bloat(tmpPs, bloating);
Chris@16:       tmpPs.clean(); //apply implicit OR on tmp polygon set
Chris@16:       ps.insert(tmpPs);
Chris@16:     }
Chris@16:     ps.self_intersect();
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   scale_up(polygon_set_type& polygon_set,
Chris@16:            typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type factor) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.scale_up(factor);
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   scale_down(polygon_set_type& polygon_set,
Chris@16:            typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type factor) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.scale_down(factor);
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   scale(polygon_set_type& polygon_set, double factor) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.scale(factor);
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   //self_intersect
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   self_intersect(polygon_set_type& polygon_set) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.self_intersect();
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   //self_xor
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   self_xor(polygon_set_type& polygon_set) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.self_xor();
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   //transform
Chris@16:   template <typename polygon_set_type, typename transformation_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   transform(polygon_set_type& polygon_set,
Chris@16:             const transformation_type& transformation) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     clean(polygon_set);
Chris@16:     polygon_45_set_data<Unit> ps;
Chris@16:     assign(ps, polygon_set);
Chris@16:     ps.transform(transformation);
Chris@16:     assign(polygon_set, ps);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   //keep
Chris@16:   template <typename polygon_set_type>
Chris@16:   typename enable_if< typename is_mutable_polygon_45_set_type<polygon_set_type>::type,
Chris@16:                        polygon_set_type>::type &
Chris@16:   keep(polygon_set_type& polygon_set,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::area_type min_area,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::area_type max_area,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type min_width,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type max_width,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type min_height,
Chris@16:        typename coordinate_traits<typename polygon_45_set_traits<polygon_set_type>::coordinate_type>::unsigned_area_type max_height) {
Chris@16:     typedef typename polygon_45_set_traits<polygon_set_type>::coordinate_type Unit;
Chris@16:     typedef typename coordinate_traits<Unit>::unsigned_area_type uat;
Chris@16:     std::list<polygon_45_data<Unit> > polys;
Chris@16:     assign(polys, polygon_set);
Chris@16:     typename std::list<polygon_45_data<Unit> >::iterator itr_nxt;
Chris@16:     for(typename std::list<polygon_45_data<Unit> >::iterator itr = polys.begin(); itr != polys.end(); itr = itr_nxt){
Chris@16:       itr_nxt = itr;
Chris@16:       ++itr_nxt;
Chris@16:       rectangle_data<Unit> bbox;
Chris@16:       extents(bbox, *itr);
Chris@16:       uat pwidth = delta(bbox, HORIZONTAL);
Chris@16:       if(pwidth > min_width && pwidth <= max_width){
Chris@16:         uat pheight = delta(bbox, VERTICAL);
Chris@16:         if(pheight > min_height && pheight <= max_height){
Chris@16:           typename coordinate_traits<Unit>::area_type parea = area(*itr);
Chris@16:           if(parea <= max_area && parea >= min_area) {
Chris@16:             continue;
Chris@16:           }
Chris@16:         }
Chris@16:       }
Chris@16:       polys.erase(itr);
Chris@16:     }
Chris@16:     assign(polygon_set, polys);
Chris@16:     return polygon_set;
Chris@16:   }
Chris@16: 
Chris@16:   template <typename T>
Chris@16:   struct view_of<polygon_90_set_concept, T> {
Chris@16:     typedef typename get_coordinate_type<T, typename geometry_concept<T>::type >::type coordinate_type;
Chris@16:     T* tp;
Chris@16:     std::vector<polygon_90_with_holes_data<coordinate_type> > polys;
Chris@16:     view_of(T& obj) : tp(&obj), polys() {
Chris@16:       std::vector<polygon_with_holes_data<coordinate_type> > gpolys;
Chris@16:       assign(gpolys, obj);
Chris@16:       for(typename std::vector<polygon_with_holes_data<coordinate_type> >::iterator itr = gpolys.begin();
Chris@16:           itr != gpolys.end(); ++itr) {
Chris@16:         polys.push_back(polygon_90_with_holes_data<coordinate_type>());
Chris@16:         assign(polys.back(), view_as<polygon_90_with_holes_concept>(*itr));
Chris@16:       }
Chris@16:     }
Chris@16:     view_of(const T& obj) : tp(), polys() {
Chris@16:       std::vector<polygon_with_holes_data<coordinate_type> > gpolys;
Chris@16:       assign(gpolys, obj);
Chris@16:       for(typename std::vector<polygon_with_holes_data<coordinate_type> >::iterator itr = gpolys.begin();
Chris@16:           itr != gpolys.end(); ++itr) {
Chris@16:         polys.push_back(polygon_90_with_holes_data<coordinate_type>());
Chris@16:         assign(polys.back(), view_as<polygon_90_with_holes_concept>(*itr));
Chris@16:       }
Chris@16:     }
Chris@16: 
Chris@16:     typedef typename std::vector<polygon_90_with_holes_data<coordinate_type> >::const_iterator iterator_type;
Chris@16:     typedef view_of operator_arg_type;
Chris@16: 
Chris@16:     inline iterator_type begin() const {
Chris@16:       return polys.begin();
Chris@16:     }
Chris@16: 
Chris@16:     inline iterator_type end() const {
Chris@16:       return polys.end();
Chris@16:     }
Chris@16: 
Chris@16:     inline orientation_2d orient() const { return HORIZONTAL; }
Chris@16: 
Chris@16:     inline bool clean() const { return false; }
Chris@16: 
Chris@16:     inline bool sorted() const { return false; }
Chris@16: 
Chris@16:     inline T& get() { return *tp; }
Chris@16: 
Chris@16:   };
Chris@16: 
Chris@16:   template <typename T>
Chris@16:   struct polygon_90_set_traits<view_of<polygon_90_set_concept, T> > {
Chris@16:     typedef typename view_of<polygon_90_set_concept, T>::coordinate_type coordinate_type;
Chris@16:     typedef typename view_of<polygon_90_set_concept, T>::iterator_type iterator_type;
Chris@16:     typedef view_of<polygon_90_set_concept, T> operator_arg_type;
Chris@16: 
Chris@16:     static inline iterator_type begin(const view_of<polygon_90_set_concept, T>& polygon_set) {
Chris@16:       return polygon_set.begin();
Chris@16:     }
Chris@16: 
Chris@16:     static inline iterator_type end(const view_of<polygon_90_set_concept, T>& polygon_set) {
Chris@16:       return polygon_set.end();
Chris@16:     }
Chris@16: 
Chris@16:     static inline orientation_2d orient(const view_of<polygon_90_set_concept, T>& polygon_set) {
Chris@16:       return polygon_set.orient(); }
Chris@16: 
Chris@16:     static inline bool clean(const view_of<polygon_90_set_concept, T>& polygon_set) {
Chris@16:       return polygon_set.clean(); }
Chris@16: 
Chris@16:     static inline bool sorted(const view_of<polygon_90_set_concept, T>& polygon_set) {
Chris@16:       return polygon_set.sorted(); }
Chris@16: 
Chris@16:   };
Chris@16: 
Chris@16:   template <typename T>
Chris@16:   struct geometry_concept<view_of<polygon_90_set_concept, T> > {
Chris@16:     typedef polygon_90_set_concept type;
Chris@16:   };
Chris@16: 
Chris@16:   template <typename T>
Chris@16:   struct get_coordinate_type<view_of<polygon_90_set_concept, T>, polygon_90_set_concept> {
Chris@16:     typedef typename view_of<polygon_90_set_concept, T>::coordinate_type type;
Chris@16:   };
Chris@16:   template <typename T>
Chris@16:   struct get_iterator_type_2<view_of<polygon_90_set_concept, T>, polygon_90_set_concept> {
Chris@16:     typedef typename view_of<polygon_90_set_concept, T>::iterator_type type;
Chris@16:     static type begin(const view_of<polygon_90_set_concept, T>& t) { return t.begin(); }
Chris@16:     static type end(const view_of<polygon_90_set_concept, T>& t) { return t.end(); }
Chris@16:   };
Chris@16: 
Chris@16: }
Chris@16: }
Chris@16: #include "detail/polygon_45_set_view.hpp"
Chris@16: #endif