mirror of
https://github.com/boostorg/geometry.git
synced 2025-05-09 23:24:02 +00:00
326 lines
12 KiB
C++
326 lines
12 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
// Unit Test
|
|
|
|
// Copyright (c) 2014, Oracle and/or its affiliates.
|
|
|
|
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
|
|
|
|
// Licensed under the Boost Software License version 1.0.
|
|
// http://www.boost.org/users/license.html
|
|
|
|
#ifndef BOOST_TEST_MODULE
|
|
#define BOOST_TEST_MODULE test_is_simple
|
|
#endif
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
#include <boost/assert.hpp>
|
|
#include <boost/test/included/unit_test.hpp>
|
|
|
|
#include <boost/geometry/geometries/point_xy.hpp>
|
|
#include <boost/geometry/geometries/segment.hpp>
|
|
#include <boost/geometry/geometries/linestring.hpp>
|
|
#include <boost/geometry/geometries/polygon.hpp>
|
|
#include <boost/geometry/geometries/box.hpp>
|
|
#include <boost/geometry/geometries/multi_point.hpp>
|
|
#include <boost/geometry/geometries/multi_linestring.hpp>
|
|
#include <boost/geometry/geometries/multi_polygon.hpp>
|
|
|
|
#include <boost/geometry/strategies/strategies.hpp>
|
|
|
|
#include <boost/geometry/io/wkt/read.hpp>
|
|
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
#include <boost/geometry/core/tag.hpp>
|
|
#include <boost/geometry/core/tags.hpp>
|
|
|
|
#include <boost/geometry/io/wkt/write.hpp>
|
|
#include <boost/geometry/io/dsv/write.hpp>
|
|
#endif
|
|
|
|
#include <boost/geometry/algorithms/is_valid.hpp>
|
|
#include <boost/geometry/algorithms/is_simple.hpp>
|
|
|
|
namespace bg = ::boost::geometry;
|
|
|
|
typedef bg::model::point<double, 2, bg::cs::cartesian> point_type;
|
|
typedef bg::model::segment<point_type> segment_type;
|
|
typedef bg::model::linestring<point_type> linestring_type;
|
|
typedef bg::model::multi_linestring<linestring_type> multi_linestring_type;
|
|
// ccw open and closed polygons
|
|
typedef bg::model::polygon<point_type,false,false> open_ccw_polygon_type;
|
|
typedef bg::model::polygon<point_type,false,true> closed_ccw_polygon_type;
|
|
// multi-geometries
|
|
typedef bg::model::multi_point<point_type> multi_point_type;
|
|
typedef bg::model::multi_polygon<open_ccw_polygon_type> multi_polygon_type;
|
|
// box
|
|
typedef bg::model::box<point_type> box_type;
|
|
|
|
template <typename Geometry>
|
|
Geometry from_wkt(std::string const& wkt)
|
|
{
|
|
Geometry g;
|
|
bg::read_wkt(wkt, g);
|
|
return g;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
template <typename Geometry, typename Tag = typename bg::tag<Geometry>::type>
|
|
struct pretty_print_geometry
|
|
{
|
|
static inline std::ostream&
|
|
apply(std::ostream& os, Geometry const& geometry)
|
|
{
|
|
os << bg::wkt(geometry);
|
|
return os;
|
|
}
|
|
};
|
|
|
|
template <typename Box>
|
|
struct pretty_print_geometry<Box, bg::box_tag>
|
|
{
|
|
static inline std::ostream&
|
|
apply(std::ostream& os, Box const& box)
|
|
{
|
|
return os << "BOX" << bg::dsv(box);
|
|
}
|
|
};
|
|
|
|
template <typename Segment>
|
|
struct pretty_print_geometry<Segment, bg::segment_tag>
|
|
{
|
|
static inline std::ostream&
|
|
apply(std::ostream& os, Segment const& segment)
|
|
{
|
|
return os << "SEGMENT" << bg::dsv(segment);
|
|
}
|
|
};
|
|
|
|
template <typename Ring>
|
|
struct pretty_print_geometry<Ring, bg::ring_tag>
|
|
{
|
|
static inline std::ostream&
|
|
apply(std::ostream& os, Ring const& ring)
|
|
{
|
|
return os << "RING" << bg::dsv(ring);
|
|
}
|
|
};
|
|
#endif
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_simple(Geometry const& g, bool simple_geometry)
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << "=======" << std::endl;
|
|
#endif
|
|
|
|
bool simple = bg::is_simple(g);
|
|
BOOST_ASSERT( bg::is_valid(g) );
|
|
BOOST_CHECK( simple == simple_geometry );
|
|
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << "Geometry: ";
|
|
pretty_print_geometry<Geometry>::apply(std::cout, g);
|
|
std::cout << std::endl;
|
|
std::cout << std::boolalpha;
|
|
std::cout << "is simple: " << simple << std::endl;
|
|
std::cout << "expected result: " << simple_geometry << std::endl;
|
|
std::cout << "=======" << std::endl;
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << std::noboolalpha;
|
|
#endif
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_point )
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
std::cout << " is_simple: POINT " << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
#endif
|
|
|
|
typedef point_type G;
|
|
|
|
test_simple(from_wkt<G>("POINT(0 0)"), true);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_multipoint )
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
std::cout << " is_simple: MULTIPOINT " << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
#endif
|
|
typedef multi_point_type G;
|
|
|
|
test_simple(from_wkt<G>("MULTIPOINT(0 0)"), true);
|
|
test_simple(from_wkt<G>("MULTIPOINT(0 0,1 0,1 1,0 1)"), true);
|
|
test_simple(from_wkt<G>("MULTIPOINT(0 0,1 0,1 1,1 0,0 1)"), false);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_segment )
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
std::cout << " is_simple: SEGMENT " << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
#endif
|
|
|
|
typedef segment_type G;
|
|
|
|
test_simple(from_wkt<G>("SEGMENT(0 0,1 0)"), true);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_linestring )
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
std::cout << " is_simple: LINESTRING " << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
#endif
|
|
|
|
typedef linestring_type G;
|
|
|
|
// valid linestrings with multiple points
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,0 0,1 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,0 0,1 0,0 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,0 0,1 0,1 0,1 1,0 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,2 0,1 1,1 0,1 -1)"), false);
|
|
|
|
// simple open linestrings
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 2)"), true);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 2,2 3)"), true);
|
|
|
|
// simple closed linestrings
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,1 1,0 0)"), true);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,1 1,0 1,0 0)"), true);
|
|
|
|
// non-simple linestrings
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,0 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,2 10,0.5 -1)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,2 1,1 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,1 0,2 1,0.5 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,2 0,1 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,3 0,5 0,1 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,3 0,5 0,4 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,3 0,5 0,4 0,2 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,3 0,2 0,5 0)"), false);
|
|
test_simple(from_wkt<G>("LINESTRING(0 0,2 0,2 2,1 0,0 0)"), false);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_multilinestring )
|
|
{
|
|
#ifdef GEOMETRY_TEST_DEBUG
|
|
std::cout << std::endl << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
std::cout << " is_simple: MULTILINESTRING " << std::endl;
|
|
std::cout << "************************************" << std::endl;
|
|
#endif
|
|
|
|
typedef multi_linestring_type G;
|
|
|
|
// multilinestrings with linestrings with spikes
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,0 0),(5 0,6 0,7 0))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,0 0),(5 0,1 0,4 1))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,0 0),(5 0,1 0,4 0))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,0 0),(1 0,2 0))"),
|
|
false);
|
|
|
|
// simple multilinestrings
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1),(1 1,1 0))"), true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1),(1 1,1 0),(0 1,1 1))"),
|
|
true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2),(0 0,1 0,2 0,2 2))"), true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2),(2 2,2 0,1 0,0 0))"), true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0),(0 0,-1 0),\
|
|
(1 0,2 0))"),
|
|
true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0),(-1 0,0 0),\
|
|
(2 0,1 0))"),
|
|
true);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0),(0 0,0 1),\
|
|
(0 0,-1 0),(0 0,0 -1))"),
|
|
true);
|
|
|
|
// non-simple multilinestrings
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2),(0 0,2 2))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2),(2 2,0 0))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2),\
|
|
(0 0,1 0,1 1,2 0,2 2))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1,2 2),\
|
|
(0 0,1 0,1 1,2 0,2 2))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1,2 2),(2 2,0 0))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(0 0,1 1))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(0 0,3 3))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(1 1,3 3))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(1 1,2 2))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(2 2,3 3))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(2 2,4 4))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 2,4 4),(4 4,2 2))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1),(0 1,1 0))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,2 0),(1 0,0 1))"), false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 1),(1 1,1 0),\
|
|
(1 1,0 1,0.5,0.5))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,1 1,0 1,0 0),(1 0,1 -1))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,1 1,0 1,0 0),(-1 0,0 0))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,1 1,0 1,0 0),\
|
|
(0 0,-1 0,-1 -1,0 -1,0 0))"),
|
|
false);
|
|
test_simple(from_wkt<G>("MULTILINESTRING((0 0,1 0,1 1,0 1,0 0),\
|
|
(-1 -1,-1 0,0 0,0 -1,-1 -1))"),
|
|
false);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE( test_is_simple_areal )
|
|
{
|
|
typedef box_type b;
|
|
typedef open_ccw_polygon_type o_ccw_p;
|
|
typedef multi_polygon_type mpl;
|
|
|
|
// check that is_simple compiles for boxes
|
|
test_simple(from_wkt<b>("BOX(0 0,1 1)"), true);
|
|
|
|
// simple polygons and multi-polygons
|
|
test_simple(from_wkt<o_ccw_p>("POLYGON((0 0,1 0,1 1))"), true);
|
|
test_simple(from_wkt<o_ccw_p>("POLYGON((0 0,10 0,10 10,0 10),\
|
|
(1 1,1 9,9 9,9 1))"),
|
|
true);
|
|
test_simple(from_wkt<mpl>("MULTIPOLYGON(((0 0,1 0,1 1)),\
|
|
((10 0,20 0,20 10,10 10)))"),
|
|
true);
|
|
|
|
// non-simple polygons & multi-polygons (have duplicate points)
|
|
test_simple(from_wkt<o_ccw_p>("POLYGON((0 0,1 0,1 0,1 1))"), false);
|
|
test_simple(from_wkt<o_ccw_p>("POLYGON((0 0,10 0,10 10,0 10),\
|
|
(1 1,1 9,9 9,9 9,9 1))"),
|
|
false);
|
|
test_simple(from_wkt<mpl>("MULTIPOLYGON(((0 0,1 0,1 1,1 1)),\
|
|
((10 0,20 0,20 0,20 10,10 10)))"),
|
|
false);
|
|
}
|