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217 lines
7.4 KiB
C++
217 lines
7.4 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library) test file
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//
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// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands
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// Copyright Bruno Lalande 2008, 2009
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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 <string>
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#include <geometry_test_common.hpp>
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#include <boost/geometry/algorithms/make.hpp>
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#include <boost/geometry/algorithms/num_points.hpp>
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#include <boost/geometry/algorithms/detail/sections/sectionalize.hpp>
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#include <boost/geometry/geometries/geometries.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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#include <test_common/test_point.hpp>
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namespace bg = boost::geometry;
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template <int DimensionCount, typename Geometry>
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void test_sectionalize_part()
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{
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typedef typename bg::point_type<Geometry>::type point_type;
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typedef bg::box<point_type> box_type;
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typedef bg::sections<box_type, DimensionCount> sections_type;
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typedef typename boost::range_value<sections_type>::type section_type;
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typedef bg::detail::sectionalize::sectionalize_part
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<
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Geometry, point_type, sections_type, 1, 10
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> sectionalize_part;
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sections_type sections;
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section_type section;
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Geometry geometry;
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geometry.push_back(bg::make<point_type>(1, 1));
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int index = 0;
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int ndi = 0;
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sectionalize_part::apply(sections, section, index, ndi, geometry);
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// There should not yet be anything generated, because it is only ONE point
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geometry.push_back(bg::make<point_type>(2, 2));
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sectionalize_part::apply(sections, section, index, ndi, geometry);
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}
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template <int DimensionCount, typename G>
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void test_sectionalize(G const& g, std::size_t section_count,
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std::string const& index_check, std::string const& dir_check)
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{
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typedef typename bg::point_type<G>::type point;
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typedef bg::box<point> box;
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typedef bg::sections<box, DimensionCount> sections;
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sections s;
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bg::sectionalize(g, s);
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BOOST_CHECK_EQUAL(s.size(), section_count);
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// Check if sections are consecutive and consistent
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int previous_index = -1;
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BOOST_FOREACH(typename sections::value_type const& sec, s)
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{
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if (sec.begin_index > 0)
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{
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BOOST_CHECK_EQUAL(previous_index, sec.begin_index);
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}
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BOOST_CHECK_EQUAL(int(sec.count), int(sec.end_index - sec.begin_index));
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previous_index = sec.end_index;
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}
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// Output streams for sections, boxes, other
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std::ostringstream out_sections;
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std::ostringstream out_boxes;
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std::ostringstream out_dirs;
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for (typename sections::size_type i = 0; i < s.size(); i++)
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{
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box const& b = s[i].bounding_box;
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if (i > 0)
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{
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out_sections << "|";
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out_dirs << "|";
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out_boxes << "|";
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}
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out_sections << s[i].begin_index << ".." << s[i].end_index;
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out_boxes << bg::get<0,0>(b) << " " << bg::get<0,1>(b)
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<< ".." << bg::get<1,0>(b) << " " << bg::get<1,1>(b);
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for (int d = 0; d < DimensionCount; d++)
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{
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out_dirs << (d == 0 ? "" : " ");
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switch(s[i].directions[d])
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{
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case -99: out_dirs << "DUP"; break;
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case -1 : out_dirs << "-"; break;
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case 0 : out_dirs << "."; break;
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case +1 : out_dirs << "+"; break;
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}
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}
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}
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if (! index_check.empty())
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{
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BOOST_CHECK_EQUAL(out_sections.str(), index_check);
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}
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if (! dir_check.empty())
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{
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BOOST_CHECK_EQUAL(out_dirs.str(), dir_check);
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}
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else
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{
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if (out_sections.str().length() < 80)
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{
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std::cout << std::endl << bg::wkt(g) << std::endl;
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std::cout << out_sections.str() << std::endl;
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//std::cout << out_boxes.str() << std::endl;
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}
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std::cout << out_dirs.str() << std::endl;
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}
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}
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template <typename G>
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void test_sectionalize(std::string const& wkt,
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std::size_t count2, std::string const& s2, std::string const d2,
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std::size_t count1, std::string const& s1, std::string const d1)
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{
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G g;
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bg::read_wkt(wkt, g);
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test_sectionalize<2>(g, count2, s2, d2);
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test_sectionalize<1>(g, count1, s1, d1);
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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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test_sectionalize_part<1, bg::linestring<P> >();
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test_sectionalize<bg::linestring<P> >(
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"LINESTRING(1 1,2 2,3 0,5 0,5 8)",
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4, "0..1|1..2|2..3|3..4", "+ +|+ -|+ .|. +",
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2, "0..3|3..4", "+|.");
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test_sectionalize<bg::polygon<P> >(
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"POLYGON((0 0,0 7,4 2,2 0,0 0))",
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4, "0..1|1..2|2..3|3..4", ". +|+ -|- -|- .",
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// . + - - -> 3 sections
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3, "0..1|1..2|2..4", ".|+|-");
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test_sectionalize<bg::polygon<P> >
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("polygon((2.0 1.3, 2.4 1.7, 2.8 1.8, 3.4 1.2, 3.7 1.6,3.4 2.0, 4.1 3.0, 5.3 2.6, 5.4 1.2, 4.9 0.8, 2.9 0.7,2.0 1.3))",
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8, "0..2|2..3|3..4|4..5|5..6|6..8|8..10|10..11", "+ +|+ -|+ +|- +|+ +|+ -|- -|- +",
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4, "0..4|4..5|5..8|8..11", "+|-|+|-");
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test_sectionalize<bg::polygon<P> >(
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"POLYGON((3 1,2 2,1 3,2 4,3 5,4 4,5 3,4 2,3 1))",
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4, "0..2|2..4|4..6|6..8", "- +|+ +|+ -|- -",
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// - - - + + + + - - -> 3 sections
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3, "0..2|2..6|6..8", "-|+|-");
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// With holes
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test_sectionalize<bg::polygon<P> >(
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"POLYGON((3 1,2 2,1 3,2 4,3 5,4 4,5 3,4 2,3 1), (3 2,2 2,3 4,3 2))",
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7, "0..2|2..4|4..6|6..8|0..1|1..2|2..3", "- +|+ +|+ -|- -|- .|+ +|. -",
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// - - - + + + + - - - + . -> 6 sections
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6, "0..2|2..6|6..8|0..1|1..2|2..3", "-|+|-|-|+|.");
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// With duplicates
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test_sectionalize<bg::linestring<P> >(
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"LINESTRING(1 1,2 2,3 0,3 0,5 0,5 8)",
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5, "0..1|1..2|2..3|3..4|4..5", "+ +|+ -|DUP DUP|+ .|. +",
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4, "0..2|2..3|3..4|4..5", "+|DUP|+|.");
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// With two subsequent duplicate segments
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test_sectionalize<bg::linestring<P> >(
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"LINESTRING(1 1,2 2,3 0,3 0,3 0,5 0,5 0,5 0,5 0,5 8)",
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6, "0..1|1..2|2..4|4..5|5..8|8..9", "+ +|+ -|DUP DUP|+ .|DUP DUP|. +",
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5, "0..2|2..4|4..5|5..8|8..9", "+|DUP|+|DUP|.");
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typedef bg::box<P> B;
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test_sectionalize<2, B>(bg::make<B>(0,0,4,4),
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4, "0..1|1..2|2..3|3..4", ". +|+ .|. -|- .");
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test_sectionalize<1, B>(bg::make<B>(0,0,4,4),
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4, "0..1|1..2|2..3|3..4", ".|+|.|-");
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return;
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// Buffer-case
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test_sectionalize<bg::polygon<P> >(
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"POLYGON((-1.1713 0.937043,2.8287 5.93704,2.90334 6.02339,2.98433 6.10382,2.98433 6.10382,3.07121 6.17786,3.16346 6.24507,3.16346 6.24507,3.16346 6.24507,3.26056 6.30508,3.36193 6.35752,3.36193 6.35752,3.46701 6.40211,3.57517 6.43858,3.57517 6.43858,3.57517 6.43858,3.57517 6.43858,3.68579 6.46672,3.79822 6.48637,3.79822 6.48637,3.91183 6.49741,4.02595 6.49978,4.02595 6.49978,4.02595 6.49978,4.13991 6.49346,4.25307 6.4785,4.25307 6.4785,4.36476 6.45497,4.47434 6.42302,4.47434 6.42302,4.47434 6.42302,4.47434 6.42302,7.47434 5.42302,6.84189 3.52566,4.39043 4.68765,0.390434 -0.312348,-1.1713 0.937043))",
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8, "0..2|2..3|3..4|4..5|5..6|6..8|8..10|10..11", "+ +|+ -|+ +|- +|+ +|+ -|- -|- +",
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4, "0..4|4..5|5..8|8..11", "+|-|+|-");
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}
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int test_main(int, char* [])
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{
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//test_all<bg::point_xy<float> >();
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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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