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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Unit Test
- // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
- // Copyright (c) 2013-2015 Adam Wulkiewicz, Lodz, Poland.
- // 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 <iostream>
- #include <iomanip>
- #include <string>
- // Instead of having a separate (and nearly similar) unit test to test multipolygons,
- // we now include them here and compile them by default. Only undefining the next line
- // will avoid testing multi-geometries
- #define BOOST_GEOMETRY_UNIT_TEST_MULTI
- #include <boost/variant/variant.hpp>
- #include <geometry_test_common.hpp>
- // The include to test
- #include <boost/geometry/algorithms/remove_spikes.hpp>
- // Helper includes
- #include <boost/geometry/algorithms/area.hpp>
- #include <boost/geometry/algorithms/correct.hpp>
- #include <boost/geometry/algorithms/perimeter.hpp>
- #include <boost/geometry/geometries/geometries.hpp>
- #include <boost/geometry/geometries/point_xy.hpp>
- #include <boost/geometry/io/wkt/wkt.hpp>
- #include <boost/geometry/strategies/strategies.hpp>
- #if defined(BOOST_GEOMETRY_UNIT_TEST_MULTI)
- # include <boost/geometry/geometries/multi_polygon.hpp>
- #endif
- #if defined(TEST_WITH_SVG)
- # include <boost/geometry/io/svg/svg_mapper.hpp>
- #endif
- template <typename Geometry>
- inline void test_remove_spikes(std::string const& /*id*/,
- Geometry& geometry,
- double expected_area, double expected_perimeter)
- {
- bg::remove_spikes(geometry);
- double detected_area = bg::area(geometry);
- double detected_perimeter = bg::perimeter(geometry);
- BOOST_CHECK_CLOSE(detected_area, expected_area, 0.01);
- BOOST_CHECK_CLOSE(detected_perimeter, expected_perimeter, 0.01);
- }
- template <typename Geometry>
- void test_geometry(std::string const& id, std::string const& wkt,
- double expected_area, double expected_perimeter)
- {
- Geometry geometry;
- bg::read_wkt(wkt, geometry);
- bg::correct(geometry);
- boost::variant<Geometry> v(geometry);
- #if defined(TEST_WITH_SVG)
- std::ostringstream filename;
- filename << "remove_spikes_" << id;
- if (! bg::closure<Geometry>::value)
- {
- filename << "_open";
- }
- filename << ".svg";
- std::ofstream svg(filename.str().c_str());
- bg::svg_mapper<typename bg::point_type<Geometry>::type> mapper(svg, 500, 500);
- mapper.add(geometry);
- mapper.map(geometry, "fill-opacity:0.3;opacity:0.6;fill:rgb(51,51,153);stroke:rgb(0,0,255);stroke-width:2");
- #endif
- test_remove_spikes(id, geometry, expected_area, expected_perimeter);
- test_remove_spikes(id, v, expected_area, expected_perimeter);
- #if defined(TEST_WITH_SVG)
- mapper.map(geometry, "opacity:0.6;fill:none;stroke:rgb(255,0,0);stroke-width:3");
- #endif
- }
- template <typename P, bool Clockwise, bool Closed>
- void test_polygons()
- {
- typedef bg::model::ring<P, Clockwise, Closed> ring;
- typedef bg::model::polygon<P, Clockwise, Closed> polygon;
- test_geometry<ring>("box",
- "POLYGON((0 0,0 4,4 4,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("box",
- "POLYGON((0 0,0 4,4 4,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("box2",
- "POLYGON((0 0,0 2,0 4,2 4,4 4,4 2,4 0,2 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_right",
- "POLYGON((0 0,0 4,4 4,4 2,6 2,4 2,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_at_corner",
- "POLYGON((0 0,0 4,6 4,4 4,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_at_first",
- "POLYGON((0 0,-1 3,0 0,0 4,4 4,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_at_last",
- "POLYGON((0 0,0 4,4 4,4 0,6 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_at_closing",
- "POLYGON((-1 0,0 0,0 4,4 4,4 0,0 0,-1 0))",
- 16, 16);
- test_geometry<polygon>("double_spike",
- "POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4 2,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("three_double_spike",
- "POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4.5 2,4 2,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("spike_with_corner",
- "POLYGON((0 0,0 4,4 4,4 2,6 2,6 4,6 2,4 2,4 0,0 0))",
- 16, 16);
- test_geometry<polygon>("triangle0",
- "POLYGON((0 0,0 4,2 0,4 0,0 0))",
- 4, 6 + sqrt(20.0));
- test_geometry<polygon>("triangle1",
- "POLYGON((0 4,2 0,4 0,0 0,0 4))",
- 4, 6 + sqrt(20.0));
- test_geometry<polygon>("triangle2",
- "POLYGON((2 0,4 0,0 0,0 4,2 0))",
- 4, 6 + sqrt(20.0));
- test_geometry<polygon>("triangle3",
- "POLYGON((4 0,0 0,0 4,2 0,4 0))",
- 4, 6 + sqrt(20.0));
- test_geometry<polygon>("only_spike1",
- "POLYGON((0 0,2 2,0 0))",
- 0, 0);
- test_geometry<polygon>("only_spike2",
- "POLYGON((0 0,2 2,4 4,2 2,0 0))",
- 0, 0);
- test_geometry<polygon>("only_spike3",
- "POLYGON((0 0,2 2,4 4,0 0))",
- 0, 0);
- test_geometry<polygon>("only_spike4",
- "POLYGON((0 0,4 4,2 2,0 0))",
- 0, 0);
- }
- template <typename P, bool Clockwise, bool Closed>
- void test_multi_polygons()
- {
- typedef bg::model::polygon<P, Clockwise, Closed> polygon;
- typedef bg::model::multi_polygon<polygon> multi_polygon;
- test_geometry<multi_polygon>("multi_spike_with_corner",
- "MULTIPOLYGON(((0 0,0 4,4 4,4 2,6 2,6 4,6 2,4 2,4 0,0 0)))",
- 16, 16);
- }
- template <typename P, bool Clockwise, bool Closed>
- void test_all()
- {
- test_polygons<P, Clockwise, Closed>();
- test_multi_polygons<P, Clockwise, Closed>();
- }
- int test_main(int, char* [])
- {
- test_all<bg::model::d2::point_xy<double>, true, true>();
- test_all<bg::model::d2::point_xy<double>, true, false>();
- return 0;
- }
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