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Diffstat (limited to 'src/boost/libs/geometry/test/strategies/transformer.cpp')
-rw-r--r-- | src/boost/libs/geometry/test/strategies/transformer.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/boost/libs/geometry/test/strategies/transformer.cpp b/src/boost/libs/geometry/test/strategies/transformer.cpp new file mode 100644 index 000000000..5cdc567e6 --- /dev/null +++ b/src/boost/libs/geometry/test/strategies/transformer.cpp @@ -0,0 +1,119 @@ +// Boost.Geometry (aka GGL, Generic Geometry Library) +// Unit Test + +// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. +// Copyright (c) 2008-2012 Bruno Lalande, Paris, France. +// Copyright (c) 2009-2012 Mateusz Loskot, London, UK. + +// 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) + + +#include <geometry_test_common.hpp> + +#include <boost/geometry/strategies/transform/inverse_transformer.hpp> +#include <boost/geometry/strategies/transform/map_transformer.hpp> +#include <boost/geometry/strategies/transform/matrix_transformers.hpp> + + +#include <boost/geometry/algorithms/make.hpp> +#include <boost/geometry/algorithms/transform.hpp> + +#include <boost/geometry/geometries/point.hpp> +#include <boost/geometry/geometries/adapted/c_array.hpp> +#include <boost/geometry/geometries/adapted/boost_tuple.hpp> + +BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian) +BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian) + + +template <typename P, typename T> +void check_inverse(P const& p, T const& trans) +{ + typedef typename bg::coordinate_type<P>::type coordinate_type; + const std::size_t dim = bg::dimension<P>::value; + + bg::strategy::transform::inverse_transformer<coordinate_type, dim, dim> inverse(trans); + + P i; + bg::transform(p, i, inverse); + + BOOST_CHECK_CLOSE(double(bg::get<0>(i)), 1.0, 0.001); + BOOST_CHECK_CLOSE(double(bg::get<1>(i)), 1.0, 0.001); +} + +template <typename P> +void test_all() +{ + typedef typename bg::coordinate_type<P>::type coordinate_type; + const std::size_t dim = bg::dimension<P>::value; + + P p; + bg::assign_values(p, 1, 1); + + { + bg::strategy::transform::translate_transformer<coordinate_type, dim, dim> trans(1, 1); + P tp; + bg::transform(p, tp, trans); + + BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 2.0, 0.001); + BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 2.0, 0.001); + + check_inverse(tp, trans); + } + + { + bg::strategy::transform::scale_transformer<coordinate_type, dim, dim> trans(10, 10); + P tp; + bg::transform(p, tp, trans); + + BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 10.0, 0.001); + BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 10.0, 0.001); + + check_inverse(tp, trans); + } + + { + bg::strategy::transform::rotate_transformer<bg::degree, double, dim, dim> trans(90.0); + P tp; + bg::transform(p, tp, trans); + + BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 1.0, 0.001); + BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), -1.0, 0.001); + check_inverse(tp, trans); + } + + { + // Map from 0,0,2,2 to 0,0,500,500 + bg::strategy::transform::map_transformer<coordinate_type, dim, dim, false> trans + ( + 0.0, 0.0, 2.0, 2.0, 500, 500 + ); + P tp; + bg::transform(p, tp, trans); + + BOOST_CHECK_CLOSE(double(bg::get<0>(tp)), 250.0, 0.001); + BOOST_CHECK_CLOSE(double(bg::get<1>(tp)), 250.0, 0.001); + + check_inverse(tp, trans); + } +} + +int test_main(int, char* []) +{ + //test_all<int[2]>(); + //test_all<float[2]>(); + //test_all<double[2]>(); + + test_all<boost::tuple<float, float> >(); + + //test_all<point<int, 2, cs::cartesian> >(); + test_all<bg::model::point<float, 2, bg::cs::cartesian> >(); + test_all<bg::model::point<double, 2, bg::cs::cartesian> >(); + + return 0; +} |