120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is 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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#include <geometry_test_common.hpp>
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#include <boost/geometry/strategies/transform/inverse_transformer.hpp>
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#include <boost/geometry/strategies/transform/map_transformer.hpp>
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#include <boost/geometry/strategies/transform/matrix_transformers.hpp>
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#include <boost/geometry/algorithms/make.hpp>
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#include <boost/geometry/algorithms/transform.hpp>
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#include <boost/geometry/geometries/point.hpp>
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#include <boost/geometry/geometries/adapted/c_array.hpp>
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#include <boost/geometry/geometries/adapted/boost_tuple.hpp>
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BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian)
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BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
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template <typename P, typename T>
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void check_inverse(P const& p, T const& trans)
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{
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typedef typename bg::coordinate_type<P>::type coordinate_type;
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const std::size_t dim = bg::dimension<P>::value;
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bg::strategy::transform::inverse_transformer<coordinate_type, dim, dim> inverse(trans);
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P i;
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bg::transform(p, i, inverse);
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BOOST_CHECK_CLOSE(double(bg::get<0>(i)), 1.0, 0.001);
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BOOST_CHECK_CLOSE(double(bg::get<1>(i)), 1.0, 0.001);
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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 typename bg::coordinate_type<P>::type coordinate_type;
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const std::size_t dim = bg::dimension<P>::value;
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P p;
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bg::assign_values(p, 1, 1);
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{
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bg::strategy::transform::translate_transformer<coordinate_type, dim, dim> trans(1, 1);
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P tp;
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bg::transform(p, tp, trans);
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BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 2.0, 0.001);
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BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 2.0, 0.001);
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check_inverse(tp, trans);
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}
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{
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bg::strategy::transform::scale_transformer<coordinate_type, dim, dim> trans(10, 10);
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P tp;
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bg::transform(p, tp, trans);
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BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 10.0, 0.001);
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BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 10.0, 0.001);
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check_inverse(tp, trans);
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}
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{
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bg::strategy::transform::rotate_transformer<bg::degree, double, dim, dim> trans(90.0);
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P tp;
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bg::transform(p, tp, trans);
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BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 1.0, 0.001);
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BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), -1.0, 0.001);
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check_inverse(tp, trans);
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}
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{
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// Map from 0,0,2,2 to 0,0,500,500
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bg::strategy::transform::map_transformer<coordinate_type, dim, dim, false> trans
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(
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0.0, 0.0, 2.0, 2.0, 500, 500
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);
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P tp;
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bg::transform(p, tp, trans);
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BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 250.0, 0.001);
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BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 250.0, 0.001);
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check_inverse(tp, trans);
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}
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}
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int test_main(int, char* [])
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{
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//test_all<int[2]>();
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//test_all<float[2]>();
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//test_all<double[2]>();
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test_all<boost::tuple<float, float> >();
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//test_all<point<int, 2, cs::cartesian> >();
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test_all<bg::model::point<float, 2, bg::cs::cartesian> >();
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test_all<bg::model::point<double, 2, bg::cs::cartesian> >();
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return 0;
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}
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