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90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
// Boost.Geometry
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// Unit Test
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// Copyright (c) 2018, Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fysikopoulos, 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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#include <geometry_test_common.hpp>
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#include <boost/geometry.hpp>
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#include <boost/geometry/geometries/geometries.hpp>
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#include <boost/geometry/algorithms/line_interpolate_point.hpp>
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#include <boost/geometry/algorithms/length.hpp>
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#include <boost/geometry/iterators/segment_iterator.hpp>
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#include <boost/geometry/strategies/cartesian/distance_pythagoras.hpp>
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#include <boost/geometry/strategies/cartesian/line_interpolate_point.hpp>
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#include <boost/geometry/strategies/geographic/distance.hpp>
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#include <boost/geometry/strategies/geographic/line_interpolate_point.hpp>
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#include <boost/geometry/strategies/spherical/distance_haversine.hpp>
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#include <boost/geometry/strategies/spherical/line_interpolate_point.hpp>
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#include <boost/geometry/io/wkt/wkt.hpp>
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template <typename P>
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void check_points(P const& p0, P const& p1)
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{
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double p00 = bg::get<0>(p0);
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double p10 = bg::get<0>(p1);
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BOOST_CHECK_CLOSE(p00, p10, 0.0000001);
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double p01 = bg::get<1>(p0);
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double p11 = bg::get<1>(p1);
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BOOST_CHECK_CLOSE(p01, p11, 0.0000001);
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}
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template <typename P, typename G>
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inline void test(std::string const& wkt1,
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double fraction,
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std::string const& wkt2)
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{
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G g;
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bg::read_wkt(wkt1, g);
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P o;
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bg::read_wkt(wkt2, o);
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P p;
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bg::line_interpolate_point(g, fraction, p);
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check_points(p, o);
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}
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template <typename P>
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void test_all()
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{
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typedef bg::model::segment<P> s_t;
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typedef bg::model::linestring<P> ls_t;
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0, "POINT(0 0)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.1, "POINT(0.4 0)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.2, "POINT(0.8 0)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.3, "POINT(1 0.2)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.4, "POINT(1 0.6)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.5, "POINT(1 1)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.6, "POINT(0.6 1)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.7, "POINT(0.2 1)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.8, "POINT(0 1.2)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 0.9, "POINT(0 1.6)");
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test<P,ls_t>("LINESTRING(0 0, 1 0, 1 1, 0 1, 0 2)", 1, "POINT(0 2)");
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}
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int test_main(int, char* [])
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{
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test_all< bg::model::point<double, 2, bg::cs::cartesian> >();
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//test_all< bg::model::point<double, 2, bg::cs::spherical_equatorial<bg::degree> > >();
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//test_all< bg::model::point<double, 2, bg::cs::geographic<bg::degree> > >();
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return 0;
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}
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