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158d3424c2
Added test for remove_spikes Small changes in tests for differences, sectionalize Enhanced write_svg in the sense that .x()/.y() are removed, plus using max to avoid empty nonvisible boxes [SVN r61020]
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library) test file
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//
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// Copyright Barend Gehrels 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 <iostream>
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#include <iomanip>
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#include <string>
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#include <geometry_test_common.hpp>
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#include <boost/geometry/strategies/strategies.hpp>
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#include <boost/geometry/extensions/algorithms/remove_spikes.hpp>
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#include <boost/geometry/algorithms/num_points.hpp>
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#include <boost/geometry/algorithms/unique.hpp>
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#include <boost/geometry/extensions/gis/io/wkt/read_wkt.hpp>
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#include <boost/geometry/extensions/gis/io/wkt/write_wkt.hpp>
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#if defined(TEST_WITH_SVG)
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# include <boost/geometry/extensions/io/svg/svg_mapper.hpp>
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#endif
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template <typename Geometry>
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inline void test_remove_spikes(std::string const& id,
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Geometry const& geometry,
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int expected_count)
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{
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namespace bg = boost::geometry;
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typedef typename bg::point_type<Geometry>::type point_type;
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Geometry processed = geometry;
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//bg::remove_spikes(processed, bg::remove_elongated_spikes<point_type>());
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bg::remove_spikes(processed, bg::remove_by_normalized<point_type>());
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bg::unique(processed);
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int detected = bg::num_points(processed);
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BOOST_CHECK_MESSAGE(detected == expected_count,
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"remove_spikes: " << bg::wkt(geometry)
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<< " -> Expected: " << expected_count
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<< " detected: " << detected);
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#if defined(TEST_WITH_SVG)
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{
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std::ostringstream filename;
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filename << "remove_spikes_" << id << ".svg";
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std::ofstream svg(filename.str().c_str());
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bg::svg_mapper<typename bg::point_type<Geometry>::type> mapper(svg, 500, 500);
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mapper.add(geometry);
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mapper.map(geometry, "opacity:0.6;fill:rgb(0,0,255);stroke:rgb(0,0,255);stroke-width:1");
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mapper.map(processed, "opacity:0.6;fill:rgb(0,255,0);stroke:rgb(0,255,0);stroke-width:1");
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}
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#endif
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}
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template <typename Geometry>
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void test_geometry(std::string const& id, std::string const& wkt, int expected_count)
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{
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Geometry geometry;
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boost::geometry::read_wkt(wkt, geometry);
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test_remove_spikes(id, geometry, expected_count);
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}
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#if ! defined(GGL_TEST_MULTI)
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template <typename P>
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void test_all()
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{
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typedef boost::geometry::linear_ring<P> ring;
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typedef boost::geometry::polygon<P> polygon;
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test_geometry<polygon>("box",
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"POLYGON((0 0,0 4,4 4,4 0,0 0))", 5);
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test_geometry<polygon>("spike_right",
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"POLYGON((0 0,0 4,4 4,4 2,6 2,4 2,4 0,0 0))", 6);
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test_geometry<polygon>("spike_at_first",
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"POLYGON((0 0,-1 3,0 0,0 4,4 4,4 0,0 0))", 5);
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test_geometry<polygon>("spike_at_closing",
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"POLYGON((-1 0,0 0,0 4,4 4,4 0,0 0,-1 0))", 5);
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test_geometry<polygon>("double_spike",
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"POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4 2,4 0,0 0))", 6);
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test_geometry<polygon>("three_double_spike",
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"POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4.5 2,4 2,4 0,0 0))", 6);
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}
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int test_main(int, char* [])
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{
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test_all<boost::geometry::point_xy<double> >();
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return 0;
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}
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#endif
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