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[test][distance] add common code for distance unit tests
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Menelaos Karavelas
392
test/algorithms/test_distance_common.hpp
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392
test/algorithms/test_distance_common.hpp
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2014, Oracle and/or its affiliates.
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_TEST_DISTANCE_COMMON_HPP
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#define BOOST_GEOMETRY_TEST_DISTANCE_COMMON_HPP
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#include <iostream>
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#include <string>
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#include <boost/geometry/algorithms/distance.hpp>
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#include <boost/geometry/geometries/point.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/geometry/geometries/segment.hpp>
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#include <boost/geometry/geometries/linestring.hpp>
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#include <boost/geometry/geometries/polygon.hpp>
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#include <boost/geometry/geometries/box.hpp>
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#include <boost/geometry/multi/geometries/multi_point.hpp>
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#include <boost/geometry/multi/geometries/multi_linestring.hpp>
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#include <boost/geometry/multi/geometries/multi_polygon.hpp>
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#include <boost/geometry/io/wkt/write.hpp>
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#include <boost/geometry/multi/io/wkt/write.hpp>
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#include <boost/geometry/io/dsv/write.hpp>
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#include <boost/geometry/multi/io/dsv/write.hpp>
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#include "from_wkt.hpp"
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#ifndef BOOST_GEOMETRY_TEST_DISTANCE_HPP
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namespace bg = ::boost::geometry;
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// function copied from BG's test_distance.hpp
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template <typename Geometry1, typename Geometry2>
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void test_empty_input(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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try
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{
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bg::distance(geometry1, geometry2);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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}
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#endif // BOOST_GEOMETRY_TEST_DISTANCE_HPP
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//========================================================================
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//========================================================================
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//========================================================================
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// create geometries -- START
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template<typename Segment>
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Segment make_segment(double x1, double y1, double x2, double y2)
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{
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typename bg::point_type<Segment>::type p(x1, y1), q(x2, y2);
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return Segment(p, q);
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}
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template <typename Box>
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Box make_box2d(double xmin, double ymin, double xmax, double ymax)
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{
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typedef typename bg::point_type<Box>::type BoxPoint;
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return Box(BoxPoint(xmin, ymin), BoxPoint(xmax, ymax));
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}
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template <typename Box>
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Box make_box3d(double xmin, double ymin, double zmin,
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double xmax, double ymax, double zmax)
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{
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typedef typename bg::point_type<Box>::type BoxPoint;
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return Box(BoxPoint(xmin, ymin, zmin), BoxPoint(xmax, ymax, zmax));
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}
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// create geometries -- END
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//========================================================================
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//========================================================================
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//========================================================================
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#ifdef GEOMETRY_TEST_DEBUG
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// pretty print geometry -- START
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template <typename Geometry, typename GeometryTag>
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struct pretty_print_geometry_dispatch
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << bg::wkt(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry_dispatch<Geometry, bg::segment_tag>
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << "SEGMENT" << bg::dsv(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry_dispatch<Geometry, bg::box_tag>
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << "BOX" << bg::dsv(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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return pretty_print_geometry_dispatch
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<
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Geometry, typename bg::tag<Geometry>::type
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>::apply(geometry, os);
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}
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};
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// pretty print geometry -- END
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#endif // GEOMETRY_TEST_DEBUG
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//========================================================================
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template
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<
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typename Geometry1, typename Geometry2,
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int id1 = bg::geometry_id<Geometry1>::value,
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int id2 = bg::geometry_id<Geometry2>::value
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>
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struct test_distance_of_geometries
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: public test_distance_of_geometries<Geometry1, Geometry2, 0, 0>
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{};
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template <typename Geometry1, typename Geometry2>
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struct test_distance_of_geometries<Geometry1, Geometry2, 0, 0>
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{
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template <typename Strategy>
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void operator()(std::string const& wkt1,
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std::string const& wkt2,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = false) const
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{
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Geometry1 geometry1 = from_wkt<Geometry1>(wkt1);
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Geometry2 geometry2 = from_wkt<Geometry2>(wkt2);
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operator()(geometry1, geometry2,
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expected_distance, expected_comparable_distance,
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strategy, test_reversed);
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}
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template <typename Strategy>
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void operator()(Geometry1 const& geometry1,
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std::string const& wkt2,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = false) const
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{
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Geometry2 geometry2 = from_wkt<Geometry2>(wkt2);
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operator()(geometry1, geometry2,
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expected_distance, expected_comparable_distance,
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strategy, test_reversed);
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}
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template <typename Strategy>
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void operator()(std::string const& wkt1,
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Geometry2 const& geometry2,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = false) const
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{
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Geometry1 geometry1 = from_wkt<Geometry1>(wkt1);
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operator()(geometry1, geometry2,
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expected_distance, expected_comparable_distance,
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strategy, test_reversed);
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}
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template <typename Strategy>
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void operator()(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = true) const
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{
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#ifdef GEOMETRY_TEST_DEBUG
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typedef pretty_print_geometry<Geometry1> PPG1;
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typedef pretty_print_geometry<Geometry2> PPG2;
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PPG1::apply(geometry1, std::cout);
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std::cout << " - ";
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PPG2::apply(geometry2, std::cout);
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std::cout << std::endl;
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#endif
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typename bg::default_distance_result<Geometry1>::type dist_def
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= bg::distance(geometry1, geometry2);
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BOOST_CHECK_CLOSE(dist_def, expected_distance, 0.0001);
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typename bg::default_distance_result<Geometry1>::type dist
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= bg::distance(geometry1, geometry2, strategy);
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BOOST_CHECK_CLOSE(dist, expected_distance, 0.0001);
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#ifdef GEOMETRY_TEST_DEBUG
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typename bg::default_distance_result<Geometry1>::type cdist_def
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= bg::comparable_distance(geometry1, geometry2);
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BOOST_CHECK_CLOSE(cdist_def, expected_comparable_distance, 0.001);
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#endif
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typename bg::default_distance_result<Geometry1>::type cdist
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= bg::comparable_distance(geometry1, geometry2, strategy);
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BOOST_CHECK_CLOSE(cdist, expected_comparable_distance, 0.001);
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#ifdef GEOMETRY_TEST_DEBUG
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std::cout << "distance (default strategy) = " << dist_def << " ; "
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<< "distance (passed strategy) = " << dist << " ; "
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<< "comp. distance (default strategy) = "
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<< cdist_def << " ; "
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<< "comp. distance (passed strategy) = "
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<< cdist << std::endl;
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if ( !test_reversed )
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{
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std::cout << std::endl;
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}
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#endif
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if ( test_reversed )
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{
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dist_def = bg::distance(geometry2, geometry1);
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BOOST_CHECK_CLOSE(dist_def, expected_distance, 0.0001);
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dist = bg::distance(geometry2, geometry1, strategy);
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BOOST_CHECK_CLOSE(dist, expected_distance, 0.0001);
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#ifdef GEOMETRY_TEST_DEBUG
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cdist_def = bg::comparable_distance(geometry2, geometry1);
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BOOST_CHECK_CLOSE(cdist_def, expected_comparable_distance, 0.001);
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#endif
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cdist = bg::comparable_distance(geometry2, geometry1, strategy);
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BOOST_CHECK_CLOSE(cdist, expected_comparable_distance, 0.001);
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#ifdef GEOMETRY_TEST_DEBUG
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std::cout << "distance[reversed args] (def. startegy) = "
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<< dist_def << " ; "
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<< "distance[reversed args] (passed startegy) = "
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<< dist << " ; "
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<< "comp. distance[reversed args] (def. strategy) = "
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<< cdist_def << " ; "
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<< "comp. distance[reversed args] (passed strategy) = "
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<< cdist << std::endl;
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std::cout << std::endl;
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#endif
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}
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}
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};
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//========================================================================
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//========================================================================
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template <typename Geometry1, typename Geometry2>
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struct test_distance_of_geometries
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<
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Geometry1, Geometry2,
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92 /* segment */, 3 /* polygon */
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>
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: public test_distance_of_geometries<Geometry1, Geometry2, 0, 0>
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{
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typedef test_distance_of_geometries<Geometry1, Geometry2, 0, 0> base;
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typedef typename bg::ring_type<Geometry2>::type ring_type;
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template <typename Segment, typename Strategy>
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void operator()(Segment const& segment,
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std::string const& wkt,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy) const
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{
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Geometry2 geometry = from_wkt<Geometry2>(wkt);
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operator()(segment,
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geometry,
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expected_distance,
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expected_comparable_distance,
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strategy);
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}
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template <typename Segment, typename Strategy>
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void operator()(Segment const& segment,
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Geometry2 const& geometry,
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double expected_distance,
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double expected_comparable_distance,
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Strategy const& strategy) const
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{
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base::operator()(segment, geometry, expected_distance,
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expected_comparable_distance, strategy);
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if ( bg::num_interior_rings(geometry) == 0 ) {
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#ifdef GEOMETRY_TEST_DEBUG
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std::cout << "... testing also exterior ring ..." << std::endl;
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#endif
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#if 0
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// cannot run it now; needs within(point,linestring)
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test_distance_of_segment_and_geometry<ring_type>()
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(segment,
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bg::exterior_ring(geometry),
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expected_distance,
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expected_comparable_distance,
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strategy);
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#endif
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}
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}
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};
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//========================================================================
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template <typename Geometry1, typename Geometry2, typename Strategy>
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void test_empty_input(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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try
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{
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bg::distance(geometry1, geometry2, strategy);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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try
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{
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bg::distance(geometry2, geometry1, strategy);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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}
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#endif // BOOST_GEOMETRY_TEST_DISTANCE_COMMON_HPP
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