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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2020 Barend Gehrels, Amsterdam, the Netherlands.
// This file was modified by Oracle on 2020-2022.
// Modifications copyright (c) 2020-2022 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// htt//www.boost.org/LICENSE_1_0.txt)
#include "geometry_test_common.hpp"
#include <boost/geometry/algorithms/area.hpp>
#include <boost/geometry/algorithms/detail/overlay/turn_info.hpp>
#include <boost/geometry/algorithms/detail/buffer/piece_border.hpp>
#include <boost/geometry/util/range.hpp>
#include <boost/geometry/io/wkt/wkt.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/strategies/comparable_distance_result.hpp>
#include <boost/geometry/strategies/cartesian/distance_pythagoras.hpp>
#include <boost/geometry/strategies/cartesian/distance_projected_point.hpp>
// TEMP
#include <boost/geometry/strategies/cartesian.hpp>
#if defined(TEST_WITH_SVG)
#include <boost/geometry/io/svg/svg_mapper.hpp>
#include <boost/geometry/algorithms/detail/buffer/buffer_box.hpp>
#endif
static const std::string rectangle_offsetted = "POLYGON((0 0,0 1,0 2,0 3,1 3,2 3,3 3,3 2,3 1,3 0,2 0,1 0,0 0))";
static const std::string rectangle_original = "POLYGON((1 1,1 2,2 2,2 1,1 1))";
static const std::string diamond_offsetted = "POLYGON((3 0,2 1,1 2,0 3,1 4,2 5,3 6,4 5,5 4,6 3,5 2,4 1,3 0))";
static const std::string diamond_original = "POLYGON((3 2,2 3,3 4,4 3,3 2))";
template <typename Geometry>
inline std::string as_wkt(Geometry const& geometry)
{
std::ostringstream out;
out << bg::wkt(geometry);
return out.str();
}
// Return the border. It needs to pass the ring because its address
// is preserved in the border. It also gets the original.
template <typename Border, typename Ring>
Border setup_piece_border(Ring& ring, Ring& original,
std::string const& offsetted_wkt,
std::string const& original_wkt,
char piece)
{
// The test setup (here fore case "rectangle"; "diamond" has same layout).
// Points on offsetted ring are numbered, points on original like this [0].
// a, b, c: test pieces.
//
// 4 5
// 3 +-----+-------+-----+ 6
// | | | |
// | | a | b |
// | | | |
// 2 +----[1]-----[2]----+ 7
// | | | |
// | | ori | c |
// | | | |
// 1 +----[0,4]---[3]----+ 8
// | | | |
// | | | |
// | | | |
// 0 +-----+-------+-----+ 9
// 12 11 10
bg::read_wkt(original_wkt, original);
bg::read_wkt(offsetted_wkt, ring);
Border border;
switch(piece)
{
case 'a' :
border.set_offsetted(ring, 4, 6);
border.add_original_point(original[2]);
border.add_original_point(original[1]);
break;
case 'b' :
border.set_offsetted(ring, 5, 8);
border.add_original_point(original[2]);
break;
case 'c' :
border.set_offsetted(ring, 7, 9);
border.add_original_point(original[3]);
border.add_original_point(original[2]);
break;
default :
return border;
}
typedef typename bg::point_type<Ring>::type point_type;
bg::strategies::buffer::cartesian<> strategy;
border.get_properties_of_border(false, point_type(), strategy);
border.get_properties_of_offsetted_ring_part(strategy);
return border;
}
template <typename Point>
void test_rectangle_properties()
{
typedef bg::model::ring<Point> ring_type;
typedef bg::detail::buffer::piece_border<ring_type, Point> border_type;
border_type empty;
BOOST_CHECK_MESSAGE(empty.ring_or_original_empty(), "piece should be empty");
ring_type offsetted, original;
border_type border = setup_piece_border<border_type>(offsetted, original,
rectangle_offsetted, rectangle_original, 'a');
// Check get_full_ring functionality (used for testing, writing SVG)
ring_type const outline = border.get_full_ring();
std::string const outline_wkt = as_wkt(outline);
std::string const expected = "POLYGON((1 3,2 3,2 2,1 2,1 3))";
BOOST_CHECK_MESSAGE(outline_wkt == expected,
"expected: " << expected
<< " detected: " << outline_wkt);
BOOST_CHECK_MESSAGE(! border.ring_or_original_empty(),
"piece should not be empty");
// Check border-properties functionality (envelope, radius)
auto const area = bg::area(border.m_envelope);
BOOST_CHECK_MESSAGE(area > 1.0 && area < 1.01,
"detected: " << area);
// Check offsetted-ring-properties functionality (convexity, monotonicity)
BOOST_CHECK_MESSAGE(border.m_is_convex == true,
"piece should be convex");
BOOST_CHECK_MESSAGE(border.m_is_monotonic_increasing == true,
"piece should be monotonically increasing");
BOOST_CHECK_MESSAGE(border.m_is_monotonic_decreasing == false,
"piece NOT should be monotonically decreasing");
}
template <typename Point, typename Border, typename Mapper>
void test_point(std::string const& wkt, bool expected_outside,
bool expected_on_offsetted, bool expected_on_edge, bool expected_on_origin,
Border const& border,
Mapper& mapper, std::string const& color)
{
typename Border::state_type state;
Point point;
bg::read_wkt(wkt, point);
border.point_on_piece(point, false, false, state);
BOOST_CHECK(expected_outside == (state.count > 0));
BOOST_CHECK(expected_on_offsetted == (state.count_on_offsetted > 0));
BOOST_CHECK(expected_on_edge == (state.count_on_edge > 0));
BOOST_CHECK(expected_on_origin == (state.count_on_origin > 0));
#ifdef TEST_WITH_SVG
std::string style = "fill:" + color + ";stroke:rgb(0,0,0);stroke-width:1";
mapper.map(point, style);
std::ostringstream out;
out << (state.is_inside() ? "I" : "")
<< (state.is_on_boundary() ? "B" : "")
<< " " << state.count
<< " " << state.count_on_offsetted << ":" << state.count_on_edge << ":" << state.count_on_origin;
mapper.text(point, out.str(), "fill:rgb(0,0,0);font-family='Arial';font-size:9px;", 10, -10);
#else
boost::ignore_unused(mapper, color);
#endif
}
#ifdef TEST_WITH_SVG
template <typename Mapper, typename Ring, typename Border>
void start_svg(Mapper& mapper, Ring const& original, Ring const& offsetted,
Border const& border)
{
typedef typename bg::point_type<Ring>::type point_type;
typedef bg::model::box<point_type> box_type;
box_type box = border.m_envelope;
bg::detail::buffer::buffer_box(box, 1.0, box);
mapper.add(box);
mapper.add(offsetted);
mapper.map(offsetted,
"fill-opacity:0.5;fill:rgb(255,255,128);stroke:none");
mapper.map(original,
"fill-opacity:0.5;fill:rgb(51,51,153);stroke:none");
mapper.map(border.get_full_ring(),
"fill-opacity:0.5;fill:rgb(153,204,0);"
"stroke:rgb(153,204,0);stroke-width:1");
}
#endif
template <typename Point>
void test_rectangle_point_on_piece_a()
{
typedef bg::model::ring<Point> ring_type;
typedef bg::detail::buffer::piece_border<ring_type, Point> border_type;
ring_type offsetted, original;
border_type border = setup_piece_border<border_type>(offsetted, original,
rectangle_offsetted, rectangle_original, 'a');
#ifdef TEST_WITH_SVG
std::ofstream svg("/tmp/border_rectangle_a.svg");
bg::svg_mapper<Point> mapper(svg, 500, 500);
start_svg(mapper, original, offsetted, border);
#else
int mapper = 0;
#endif
// Points inside
test_point<Point>("POINT(1.5 2.5)", false, false, false, false, border, mapper, "red");
// Points outside
test_point<Point>("POINT(0.5 2.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(2.5 2.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(1.5 1.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(1.5 3.5)", true, false, false, false, border, mapper, "green");
// Points on the original (should be INSIDE)
test_point<Point>("POINT(1.0 2.0)", false, false, true, true, border, mapper, "orange");
test_point<Point>("POINT(1.5 2.0)", false, false, false, true, border, mapper, "orange");
test_point<Point>("POINT(2.0 2.0)", false, false, true, true, border, mapper, "orange");
// Points on the offsetted ring (should be OUTSIDE)
test_point<Point>("POINT(1.0 3.0)", false, true, true, false, border, mapper, "blue");
test_point<Point>("POINT(1.5 3.0)", false, true, false, false, border, mapper, "blue");
test_point<Point>("POINT(2.0 3.0)", false, true, true, false, border, mapper, "blue");
// Points on the edge, that is between original and offsetted ring (should be INSIDE)
test_point<Point>("POINT(1.0 2.5)", false, false, true, false, border, mapper, "cyan");
test_point<Point>("POINT(2.0 2.5)", false, false, true, false, border, mapper, "cyan");
}
template <typename Point>
void test_rectangle_point_on_piece_c()
{
typedef bg::model::ring<Point> ring_type;
typedef bg::detail::buffer::piece_border<ring_type, Point> border_type;
ring_type offsetted, original;
border_type border = setup_piece_border<border_type>(offsetted, original,
rectangle_offsetted, rectangle_original, 'c');
#ifdef TEST_WITH_SVG
std::ofstream svg("/tmp/border_rectangle_c.svg");
bg::svg_mapper<Point> mapper(svg, 500, 500);
start_svg(mapper, original, offsetted, border);
#else
int mapper = 0;
#endif
// Piece labeled as 'c' : from (2,1) to (3,2)
// Points inside
test_point<Point>("POINT(2.5 1.5)", false, false, false, false, border, mapper, "red");
// Points outside
test_point<Point>("POINT(1.5 1.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(3.5 1.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(2.5 0.5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(2.5 2.5)", true, false, false, false, border, mapper, "green");
// Points on the original (should be INSIDE)
test_point<Point>("POINT(2.0 1.0)", false, false, true, true, border, mapper, "orange");
test_point<Point>("POINT(2.0 1.5)", false, false, false, true, border, mapper, "orange");
test_point<Point>("POINT(2.0 2.0)", false, false, true, true, border, mapper, "orange");
// Points on the offsetted ring (should be OUTSIDE)
test_point<Point>("POINT(3.0 1.0)", false, true, true, false, border, mapper, "blue");
test_point<Point>("POINT(3.0 1.5)", false, true, false, false, border, mapper, "blue");
test_point<Point>("POINT(3.0 2.0)", false, true, true, false, border, mapper, "blue");
// Points on between original and offsetted ring (should be INSIDE)
test_point<Point>("POINT(2.5 2.0)", false, false, true, false, border, mapper, "cyan");
test_point<Point>("POINT(2.5 1.0)", false, false, true, false, border, mapper, "cyan");
}
template <typename Point>
void test_diamond_point_on_piece_a()
{
typedef bg::model::ring<Point> ring_type;
typedef bg::detail::buffer::piece_border<ring_type, Point> border_type;
ring_type offsetted, original;
border_type border = setup_piece_border<border_type>(offsetted, original,
diamond_offsetted, diamond_original, 'a');
#ifdef TEST_WITH_SVG
std::ofstream svg("/tmp/border_diamond_a.svg");
bg::svg_mapper<Point> mapper(svg, 500, 500);
start_svg(mapper, original, offsetted, border);
#else
int mapper = 0;
#endif
// Points inside
test_point<Point>("POINT(2 4)", false, false, false, false, border, mapper, "red");
// Points outside
test_point<Point>("POINT(1 3)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(1 5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(3 3)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(3 5)", true, false, false, false, border, mapper, "green");
// Points on the original (should be INSIDE)
test_point<Point>("POINT(2 3)", false, false, true, true, border, mapper, "orange");
test_point<Point>("POINT(2.5 3.5)", false, false, false, true, border, mapper, "orange");
test_point<Point>("POINT(3 4)", false, false, true, true, border, mapper, "orange");
// Points on the offsetted ring (should be OUTSIDE)
test_point<Point>("POINT(1 4)", false, true, true, false, border, mapper, "blue");
test_point<Point>("POINT(1.5 4.5)", false, true, false, false, border, mapper, "blue");
test_point<Point>("POINT(2 5)", false, true, true, false, border, mapper, "blue");
// Points on between original and offsetted ring (should be INSIDE)
test_point<Point>("POINT(1.5 3.5)", false, false, true, false, border, mapper, "cyan");
test_point<Point>("POINT(2.5 4.5)", false, false, true, false, border, mapper, "cyan");
}
template <typename Point>
void test_diamond_point_on_piece_c()
{
typedef bg::model::ring<Point> ring_type;
typedef bg::detail::buffer::piece_border<ring_type, Point> border_type;
ring_type offsetted, original;
border_type border = setup_piece_border<border_type>(offsetted, original,
diamond_offsetted, diamond_original, 'c');
#ifdef TEST_WITH_SVG
std::ofstream svg("/tmp/border_diamond_c.svg");
bg::svg_mapper<Point> mapper(svg, 500, 500);
start_svg(mapper, original, offsetted, border);
#else
int mapper = 0;
#endif
// Points inside
test_point<Point>("POINT(4 4)", false, false, false, false, border, mapper, "red");
// Points outside
test_point<Point>("POINT(3 3)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(3 5)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(5 3)", true, false, false, false, border, mapper, "green");
test_point<Point>("POINT(5 5)", true, false, false, false, border, mapper, "green");
// Points on the original (should be INSIDE)
test_point<Point>("POINT(3 4)", false, false, true, true, border, mapper, "orange");
test_point<Point>("POINT(3.5 3.5)", false, false, false, true, border, mapper, "orange");
test_point<Point>("POINT(4 3)", false, false, true, true, border, mapper, "orange");
// Points on the offsetted ring (should be OUTSIDE)
test_point<Point>("POINT(4 5)", false, true, true, false, border, mapper, "blue");
test_point<Point>("POINT(4.5 4.5)", false, true, false, false, border, mapper, "blue");
test_point<Point>("POINT(5 4)", false, true, true, false, border, mapper, "blue");
// Points on between original and offsetted ring (should be INSIDE)
test_point<Point>("POINT(3.5 4.5)", false, false, true, false, border, mapper, "cyan");
test_point<Point>("POINT(4.5 3.5)", false, false, true, false, border, mapper, "cyan");
}
int test_main(int, char* [])
{
BoostGeometryWriteTestConfiguration();
typedef bg::model::point<default_test_type, 2, bg::cs::cartesian> point_type;
test_rectangle_properties<point_type>();
test_rectangle_point_on_piece_a<point_type>();
test_rectangle_point_on_piece_c<point_type>();
test_diamond_point_on_piece_a<point_type>();
test_diamond_point_on_piece_c<point_type>();
return 0;
}
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