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3rdparty/boost_1_81_0/boost/geometry/strategies/distance.hpp 3.1 KB
63e88f80   Hu Chunming   提交三方库
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  // Boost.Geometry (aka GGL, Generic Geometry Library)
  
  // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
  // Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
  // Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
  
  // This file was modified by Oracle on 2014-2021.
  // Modifications copyright (c) 2014-2021, Oracle and/or its affiliates.
  // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
  // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
  
  // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
  // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
  
  // Use, modification and distribution is subject to the Boost Software License,
  // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  
  #ifndef BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP
  #define BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP
  
  
  #include <boost/geometry/core/cs.hpp>
  #include <boost/geometry/core/static_assert.hpp>
  #include <boost/geometry/strategies/tags.hpp>
  
  
  namespace boost { namespace geometry
  {
  
  
  namespace strategy { namespace distance { namespace services
  {
  
  
  template <typename Strategy> struct tag
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Strategy.",
          Strategy);
  };
  
  template <typename Strategy, typename P1, typename P2>
  struct return_type
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Strategy.",
          Strategy, P1, P2);
  };
  
  
  template <typename Strategy> struct comparable_type
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Strategy.",
          Strategy);
  };
  
  template <typename Strategy> struct get_comparable
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Strategy.",
          Strategy);
  };
  
  template <typename Strategy, typename P1, typename P2>
  struct result_from_distance
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Strategy.",
          Strategy, P1, P2);
  };
  
  
  
  
  // Default strategy
  
  
  /*!
      \brief Traits class binding a default strategy for distance
          to one (or possibly two) coordinate system(s)
      \ingroup distance
      \tparam GeometryTag1 tag (point/segment/box) for which this strategy is the default
      \tparam GeometryTag2 tag (point/segment/box) for which this strategy is the default
      \tparam Point1 first point-type
      \tparam Point2 second point-type
      \tparam CsTag1 tag of coordinate system of first point type
      \tparam CsTag2 tag of coordinate system of second point type
  */
  template
  <
      typename GeometryTag1,
      typename GeometryTag2,
      typename Point1,
      typename Point2 = Point1,
      typename CsTag1 = typename cs_tag<Point1>::type,
      typename CsTag2 = typename cs_tag<Point2>::type,
      typename UnderlyingStrategy = void
  >
  struct default_strategy
  {
      BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
          "Not implemented for this Point type combination.",
          Point1, Point2, CsTag1, CsTag2);
  };
  
  
  }}} // namespace strategy::distance::services
  
  
  }} // namespace boost::geometry
  
  #endif // BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP