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298 lines
12 KiB
298 lines
12 KiB
/* |
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Copyright 2008 Intel Corporation |
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Use, modification and distribution are subject to the Boost Software License, |
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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http://www.boost.org/LICENSE_1_0.txt). |
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*/ |
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#ifndef BOOST_POLYGON_POINT_CONCEPT_HPP |
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#define BOOST_POLYGON_POINT_CONCEPT_HPP |
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#include "isotropy.hpp" |
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#include "point_data.hpp" |
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#include "point_traits.hpp" |
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namespace boost { namespace polygon{ |
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struct point_concept {}; |
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template <typename T> |
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struct is_point_concept { typedef gtl_no type; }; |
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template <> |
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struct is_point_concept<point_concept> { typedef gtl_yes type; }; |
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struct point_3d_concept; |
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template <> |
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struct is_point_concept<point_3d_concept> { typedef gtl_yes type; }; |
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template <typename T> |
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struct is_mutable_point_concept { typedef gtl_no type; }; |
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template <> |
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struct is_mutable_point_concept<point_concept> { typedef gtl_yes type; }; |
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template <typename T, typename CT> |
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struct point_coordinate_type_by_concept { typedef void type; }; |
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template <typename T> |
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struct point_coordinate_type_by_concept<T, gtl_yes> { typedef typename point_traits<T>::coordinate_type type; }; |
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template <typename T> |
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struct point_coordinate_type { |
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typedef typename point_coordinate_type_by_concept<T, typename is_point_concept<typename geometry_concept<T>::type>::type>::type type; |
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}; |
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template <typename T, typename CT> |
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struct point_difference_type_by_concept { typedef void type; }; |
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template <typename T> |
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struct point_difference_type_by_concept<T, gtl_yes> { |
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typedef typename coordinate_traits<typename point_traits<T>::coordinate_type>::coordinate_difference type; }; |
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template <typename T> |
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struct point_difference_type { |
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typedef typename point_difference_type_by_concept< |
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T, typename is_point_concept<typename geometry_concept<T>::type>::type>::type type; |
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}; |
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template <typename T, typename CT> |
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struct point_distance_type_by_concept { typedef void type; }; |
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template <typename T> |
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struct point_distance_type_by_concept<T, gtl_yes> { |
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typedef typename coordinate_traits<typename point_traits<T>::coordinate_type>::coordinate_distance type; }; |
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template <typename T> |
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struct point_distance_type { |
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typedef typename point_distance_type_by_concept< |
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T, typename is_point_concept<typename geometry_concept<T>::type>::type>::type type; |
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}; |
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template <typename T> |
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typename point_coordinate_type<T>::type |
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get(const T& point, orientation_2d orient, |
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typename enable_if< typename gtl_if<typename is_point_concept<typename geometry_concept<T>::type>::type>::type>::type * = 0 |
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) { |
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return point_traits<T>::get(point, orient); |
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} |
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template <typename T, typename coordinate_type> |
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void |
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set(T& point, orientation_2d orient, coordinate_type value, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<T>::type>::type>::type * = 0 |
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) { |
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point_mutable_traits<T>::set(point, orient, value); |
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} |
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template <typename T, typename coordinate_type1, typename coordinate_type2> |
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T |
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construct(coordinate_type1 x_value, coordinate_type2 y_value, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<T>::type>::type>::type * = 0 |
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) { |
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return point_mutable_traits<T>::construct(x_value, y_value); |
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} |
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template <typename T1, typename T2> |
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T1& |
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assign(T1& lvalue, const T2& rvalue, |
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typename enable_if< typename gtl_and< typename is_mutable_point_concept<typename geometry_concept<T1>::type>::type, |
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typename is_point_concept<typename geometry_concept<T2>::type>::type>::type>::type * = 0 |
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) { |
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set(lvalue, HORIZONTAL, get(rvalue, HORIZONTAL)); |
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set(lvalue, VERTICAL, get(rvalue, VERTICAL)); |
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return lvalue; |
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} |
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struct y_p_x : gtl_yes {}; |
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template <typename point_type> |
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typename enable_if< typename gtl_and<y_p_x, typename is_point_concept<typename geometry_concept<point_type>::type>::type>::type, |
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typename point_traits<point_type>::coordinate_type >::type |
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x(const point_type& point) { |
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return get(point, HORIZONTAL); |
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} |
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struct y_p_y : gtl_yes {}; |
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template <typename point_type> |
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typename enable_if< typename gtl_and<y_p_y, typename is_point_concept<typename geometry_concept<point_type>::type>::type>::type, |
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typename point_traits<point_type>::coordinate_type >::type |
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y(const point_type& point) { |
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return get(point, VERTICAL); |
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} |
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struct y_p_sx : gtl_yes {}; |
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template <typename point_type, typename coordinate_type> |
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typename enable_if<typename gtl_and<y_p_sx, typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type, |
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void>::type |
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x(point_type& point, coordinate_type value) { |
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set(point, HORIZONTAL, value); |
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} |
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struct y_p_sy : gtl_yes {}; |
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template <typename point_type, typename coordinate_type> |
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typename enable_if<typename gtl_and<y_p_sy, typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type, |
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void>::type |
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y(point_type& point, coordinate_type value) { |
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set(point, VERTICAL, value); |
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} |
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template <typename T, typename T2> |
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bool |
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equivalence(const T& point1, const T2& point2, |
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typename enable_if< typename gtl_and<typename gtl_same_type<point_concept, typename geometry_concept<T>::type>::type, |
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typename is_point_concept<typename geometry_concept<T2>::type>::type>::type>::type * = 0 |
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) { |
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typename point_traits<T>::coordinate_type x1 = x(point1); |
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typename point_traits<T2>::coordinate_type x2 = get(point2, HORIZONTAL); |
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typename point_traits<T>::coordinate_type y1 = get(point1, VERTICAL); |
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typename point_traits<T2>::coordinate_type y2 = y(point2); |
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return x1 == x2 && y1 == y2; |
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} |
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template <typename point_type_1, typename point_type_2> |
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typename point_difference_type<point_type_1>::type |
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manhattan_distance(const point_type_1& point1, const point_type_2& point2, |
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typename enable_if< typename gtl_and<typename gtl_same_type<point_concept, typename geometry_concept<point_type_1>::type>::type, |
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typename is_point_concept<typename geometry_concept<point_type_2>::type>::type>::type>::type * = 0) { |
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return euclidean_distance(point1, point2, HORIZONTAL) + euclidean_distance(point1, point2, VERTICAL); |
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} |
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struct y_i_ed1 : gtl_yes {}; |
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template <typename point_type_1, typename point_type_2> |
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typename enable_if< typename gtl_and_3<y_i_ed1, typename is_point_concept<typename geometry_concept<point_type_1>::type>::type, |
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typename is_point_concept<typename geometry_concept<point_type_2>::type>::type>::type, |
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typename point_difference_type<point_type_1>::type>::type |
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euclidean_distance(const point_type_1& point1, const point_type_2& point2, orientation_2d orient) { |
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typename coordinate_traits<typename point_traits<point_type_1>::coordinate_type>::coordinate_difference return_value = |
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get(point1, orient) - get(point2, orient); |
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return return_value < 0 ? (typename coordinate_traits<typename point_traits<point_type_1>::coordinate_type>::coordinate_difference)-return_value : return_value; |
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} |
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struct y_i_ed2 : gtl_yes {}; |
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template <typename point_type_1, typename point_type_2> |
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typename enable_if< typename gtl_and_3<y_i_ed2, typename gtl_same_type<point_concept, typename geometry_concept<point_type_1>::type>::type, |
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typename gtl_same_type<point_concept, typename geometry_concept<point_type_2>::type>::type>::type, |
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typename point_distance_type<point_type_1>::type>::type |
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euclidean_distance(const point_type_1& point1, const point_type_2& point2) { |
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typedef typename point_traits<point_type_1>::coordinate_type Unit; |
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return sqrt((double)(distance_squared(point1, point2))); |
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} |
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template <typename point_type_1, typename point_type_2> |
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typename point_difference_type<point_type_1>::type |
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distance_squared(const point_type_1& point1, const point_type_2& point2, |
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typename enable_if< typename gtl_and<typename is_point_concept<typename geometry_concept<point_type_1>::type>::type, |
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typename is_point_concept<typename geometry_concept<point_type_2>::type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type_1>::coordinate_type Unit; |
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typename coordinate_traits<Unit>::coordinate_difference dx = euclidean_distance(point1, point2, HORIZONTAL); |
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typename coordinate_traits<Unit>::coordinate_difference dy = euclidean_distance(point1, point2, VERTICAL); |
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dx *= dx; |
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dy *= dy; |
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return dx + dy; |
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} |
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template <typename point_type_1, typename point_type_2> |
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point_type_1 & |
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convolve(point_type_1& lvalue, const point_type_2& rvalue, |
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typename enable_if< typename gtl_and<typename is_mutable_point_concept<typename geometry_concept<point_type_1>::type>::type, |
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typename is_point_concept<typename geometry_concept<point_type_2>::type>::type>::type>::type * = 0 |
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) { |
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x(lvalue, x(lvalue) + x(rvalue)); |
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y(lvalue, y(lvalue) + y(rvalue)); |
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return lvalue; |
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} |
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template <typename point_type_1, typename point_type_2> |
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point_type_1 & |
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deconvolve(point_type_1& lvalue, const point_type_2& rvalue, |
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typename enable_if< typename gtl_and<typename is_mutable_point_concept<typename geometry_concept<point_type_1>::type>::type, |
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typename is_point_concept<typename geometry_concept<point_type_2>::type>::type>::type>::type * = 0 |
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) { |
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x(lvalue, x(lvalue) - x(rvalue)); |
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y(lvalue, y(lvalue) - y(rvalue)); |
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return lvalue; |
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} |
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template <typename point_type, typename coord_type> |
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point_type & |
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scale_up(point_type& point, coord_type factor, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type>::coordinate_type Unit; |
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x(point, x(point) * (Unit)factor); |
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y(point, y(point) * (Unit)factor); |
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return point; |
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} |
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template <typename point_type, typename coord_type> |
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point_type & |
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scale_down(point_type& point, coord_type factor, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type>::coordinate_type Unit; |
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typedef typename coordinate_traits<Unit>::coordinate_distance dt; |
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x(point, scaling_policy<Unit>::round((dt)((dt)(x(point)) / (dt)factor))); |
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y(point, scaling_policy<Unit>::round((dt)((dt)(y(point)) / (dt)factor))); |
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return point; |
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} |
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template <typename point_type, typename scaling_type> |
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point_type & |
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scale(point_type& point, |
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const scaling_type& scaling, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type>::coordinate_type Unit; |
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Unit x_(x(point)), y_(y(point)); |
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scaling.scale(x_, y_); |
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x(point, x_); |
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y(point, y_); |
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return point; |
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} |
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template <typename point_type, typename transformation_type> |
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point_type & |
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transform(point_type& point, const transformation_type& transformation, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type>::coordinate_type Unit; |
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Unit x_(x(point)), y_(y(point)); |
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transformation.transform(x_, y_); |
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x(point, x_); |
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y(point, y_); |
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return point; |
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} |
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struct y_pt_move : gtl_yes {}; |
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template <typename point_type> |
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typename enable_if< |
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typename gtl_and< y_pt_move, |
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typename is_mutable_point_concept< |
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typename geometry_concept<point_type>::type>::type>::type, |
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point_type>::type & |
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move(point_type& point, orientation_2d orient, |
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typename point_traits<point_type>::coordinate_type displacement, |
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typename enable_if<typename is_mutable_point_concept<typename geometry_concept<point_type>::type>::type>::type * = 0 |
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) { |
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typedef typename point_traits<point_type>::coordinate_type Unit; |
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Unit v(get(point, orient)); |
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set(point, orient, v + displacement); |
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return point; |
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} |
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template <class T> |
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template <class T2> |
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point_data<T>& point_data<T>::operator=(const T2& rvalue) { |
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assign(*this, rvalue); |
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return *this; |
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} |
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template <typename T> |
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struct geometry_concept<point_data<T> > { |
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typedef point_concept type; |
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}; |
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} |
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} |
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#endif |
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