geometry/test/algorithms/intersection.cpp
Barend Gehrels 6327031546 Last changes in buffer before moving it to extensions
Changes in dissolver/split rings

Added extensions/offset
Added const behaviour for for_each_coordinate

Aded reverse test for intersection

[SVN r61508]
2010-04-23 15:51:13 +00:00

291 lines
10 KiB
C++

// Boost.Geometry (aka GGL, Generic Geometry Library) test file
//
// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands
// Copyright Bruno Lalande 2008, 2009
// 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 <string>
#include <algorithms/test_intersection.hpp>
#include <algorithms/test_overlay.hpp>
#include <boost/geometry/geometries/adapted/std_as_linestring.hpp>
#include <test_common/test_point.hpp>
#include <test_common/with_pointer.hpp>
template <typename P>
void test_all()
{
typedef boost::geometry::linestring<P> linestring;
typedef boost::geometry::polygon<P> polygon;
typedef boost::geometry::box<P> box;
std::string clip = "box(2 2,8 8)";
// Basic check: box/linestring, is clipping OK? should compile in any order
test_one<linestring, linestring, box>("llb", "LINESTRING(0 0,10 10)", clip, 1, 2, sqrt(2.0 * 6.0 * 6.0));
test_one<linestring, box, linestring>("lbl", clip, "LINESTRING(0 0,10 10)", 1, 2, sqrt(2.0 * 6.0 * 6.0));
// Completely inside
test_one<linestring, linestring, box>("llbi", "LINESTRING(3 3,7 7)", clip, 1, 2, sqrt(2.0 * 4.0 * 4.0));
// Completely outside
test_one<linestring, linestring, box>("llbo", "LINESTRING(9 9,10 10)", clip, 0, 0, 0);
// Touching with point (-> output linestring with ONE point)
//std::cout << "Note: the output line is degenerate! Might be removed!" << std::endl;
test_one<linestring, linestring, box>("llb_touch", "LINESTRING(8 8,10 10)", clip, 1, 1, 0.0);
// Along border
test_one<linestring, linestring, box>("llb_along", "LINESTRING(2 2,2 8)", clip, 1, 2, 6);
// Outputting two lines (because of 3-4-5 constructions (0.3,0.4,0.5)
// which occur 4 times, the length is expected to be 2.0)
test_one<linestring, linestring, box>("llb_2", "LINESTRING(1.7 1.6,2.3 2.4,2.9 1.6,3.5 2.4,4.1 1.6)", clip, 2, 6, 4 * 0.5);
test_one<polygon, box, polygon>("boxring", example_box, example_ring,
2, 12, 1.09125);
test_one<polygon, box, polygon>("boxpoly", example_box, example_polygon,
3, 19, 0.840166);
test_one<polygon, polygon, polygon>("star_ring", example_star, example_ring,
1, 18, 2.80983);
test_one<polygon, polygon, polygon>("star_poly", example_star, example_polygon,
1, 0, // CLN: 23 points, other types: 22 point (one is merged)
2.5020508);
test_one<polygon, box, polygon>("poly1", example_box,
"POLYGON((3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2))",
2, 12, 1.09125);
test_one<polygon, box, polygon>("clip_poly2", example_box,
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 2.5,5.3 2.5,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3))",
2, 12, 1.00375);
test_one<polygon, box, polygon>("clip_poly3", example_box,
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 2.5,4.5 2.5,4.5 1.2,4.9 0.8,2.9 0.7,2 1.3))",
2, 12, 1.00375);
test_one<polygon, box, polygon>("clip_poly4", example_box,
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 2.5,4.5 2.5,4.5 2.3,5.0 2.3,5.0 2.1,4.5 2.1,4.5 1.9,4.0 1.9,4.5 1.2,4.9 0.8,2.9 0.7,2 1.3))",
2, 16, 0.860892);
test_one<polygon, box, polygon>("clip_poly5", example_box,
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 2.5,4.5 1.2,2.9 0.7,2 1.3))",
2, 11, 0.7575961);
test_one<polygon, box, polygon>("clip_poly6", example_box,
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.0 3.0,5.0 2.0,2.9 0.7,2 1.3))",
2, 13, 1.0744456);
test_one<polygon, box, polygon>("clip_poly7", "box(0 0, 3 3)",
"POLYGON((2 2, 1 4, 2 4, 3 3, 2 2))", 1, 4, 0.75);
test_one<polygon, polygon, polygon>("first_within_second1",
first_within_second[0], first_within_second[1],
1, 5, 1.0);
test_one<polygon, polygon, polygon>("first_within_second2",
first_within_second[1], first_within_second[0],
1, 5, 1.0);
test_one<polygon, polygon, polygon>("first_within_hole_of_second",
first_within_hole_of_second[0], first_within_hole_of_second[1],
0, 0, 0.0);
// Two forming new hole
test_one<polygon, polygon, polygon>("new_hole",
new_hole[0], new_hole[1],
2, 10, 2.0);
// Two identical
test_one<polygon, polygon, polygon>("identical",
identical[0], identical[1],
1, 5, 1.0);
// Two, inside each other, having intersections but holes are disjoint
test_one<polygon, polygon, polygon>("intersect_holes_disjoint",
intersect_holes_disjoint[0], intersect_holes_disjoint[1],
1, 15, 18.0);
// Two, inside each other, having intersections; holes separate intersections
test_one<polygon, polygon, polygon>("intersect_holes_intersect",
intersect_holes_intersect[0], intersect_holes_intersect[1],
1, 14, 18.25);
test_one<polygon, polygon, polygon>("intersect_holes_intersect_and_disjoint",
intersect_holes_intersect_and_disjoint[0], intersect_holes_intersect_and_disjoint[1],
1, 19, 17.25);
test_one<polygon, polygon, polygon>("intersect_holes_intersect_and_touch",
intersect_holes_intersect_and_touch[0], intersect_holes_intersect_and_touch[1],
1, 23, 17.25);
test_one<polygon, polygon, polygon>("intersect_holes_new_ring",
intersect_holes_new_ring[0], intersect_holes_new_ring[1],
2, 23, 122.1039);
test_one<polygon, polygon, polygon>("winded",
winded[0], winded[1],
1, 22, 40.0);
test_one<polygon, polygon, polygon>("two_bends",
two_bends[0], two_bends[1],
1, 7, 24.0);
test_one<polygon, polygon, polygon>("star_comb_15",
star_15, comb_15,
28, 150, 189.952883);
test_one<polygon, polygon, polygon>("simplex_normal",
simplex_normal[0], simplex_normal[1],
1, 7, 5.47363293);
test_one<polygon, polygon, polygon>("fitting",
fitting[0], fitting[1],
0, 0, 0);
test_one<polygon, polygon, polygon>("dist_zero",
distance_zero[0], distance_zero[1],
1, 0 /* f: 4, other: 5 */, 0.29516139, 0.01);
test_one<polygon, polygon, polygon>("ehd",
equal_holes_disjoint[0], equal_holes_disjoint[1],
1, 20, 81 - 2 * 3 * 3 - 3 * 7);
test_one<polygon, polygon, polygon>("only_hole_intersections1",
only_hole_intersections[0], only_hole_intersections[1],
1, 21, 178.090909);
test_one<polygon, polygon, polygon>("only_hole_intersection2",
only_hole_intersections[0], only_hole_intersections[2],
1, 21, 149.090909);
test_one<polygon, polygon, polygon>("intersect_exterior_and_interiors_winded",
intersect_exterior_and_interiors_winded[0], intersect_exterior_and_interiors_winded[1],
1, 14, 25.2166667);
return;
/*
REVERSED cases (should be handled/tested differently)
test_one<polygon, polygon, polygon>(102,
simplex_normal[0], simplex_reversed[1],
1, 7, 24.0);
test_one<polygon, polygon, polygon>(103,
simplex_reversed[0], simplex_normal[1],
1, 7, 24.0);
test_one<polygon, polygon, polygon>(104,
simplex_reversed[0], simplex_reversed[1],
1, 7, 24.0);
*/
// Icovist (submitted by Brandon during Formal Review)
// Test the FORWARD case
{
std::string tn = string_from_type<typename boost::geometry::coordinate_type<P>::type>::name();
test_one<polygon, polygon, polygon>("isovist",
isovist[0], isovist[1],
1,
tn == std::string("f") ? 19 : tn == std::string("d") ? 21 : 20,
88.19203,
tn == std::string("f") ? 0.5 : tn == std::string("d") ? 0.1 : 0.01);
}
// Test the REVERSE case - does not give correct results yet
/*
test_one<polygon, polygon, polygon>("icovist_r",
isovist[0], isovist[2],
1, 4, 0.29516139, 0.01);
*/
/*
test_one<polygon, box, polygon>(99, "box(115041.10 471900.10, 118334.60 474523.40)",
"POLYGON ((115483.40 474533.40, 116549.40 474059.20, 117199.90 473762.50, 117204.90 473659.50, 118339.40 472796.90, 118334.50 472757.90, 118315.10 472604.00, 118344.60 472520.90, 118277.90 472419.10, 118071.40 472536.80, 118071.40 472536.80, 117943.10 472287.70, 117744.90 472248.40, 117708.00 472034.50, 117481.90 472056.90, 117481.90 472056.90, 117272.30 471890.10, 117077.90 472161.20, 116146.60 473054.50, 115031.10 473603.30, 115483.40 474533.40))",
1, 26, 3727690.74);
*/
}
void test_pointer_version()
{
std::vector<test::test_point_xy*> ln;
test::test_point_xy* p;
p = new test::test_point_xy; p->x = 0; p->y = 0; ln.push_back(p);
p = new test::test_point_xy; p->x = 10; p->y = 10; ln.push_back(p);
boost::geometry::box<boost::geometry::point_xy<double> > box;
boost::geometry::assign(box, 2, 2, 8, 8);
typedef boost::geometry::linestring<boost::geometry::point_xy<double> > output_type;
std::vector<output_type> clip;
boost::geometry::intersection_inserter<output_type>(box, ln, std::back_inserter(clip));
double length = 0;
int n = 0;
for (std::vector<output_type>::const_iterator it = clip.begin();
it != clip.end(); ++it)
{
length += boost::geometry::length(*it);
n += boost::geometry::num_points(*it);
}
BOOST_CHECK_EQUAL(clip.size(), 1);
BOOST_CHECK_EQUAL(n, 2);
BOOST_CHECK_CLOSE(length, sqrt(2.0 * 6.0 * 6.0), 0.001);
for (unsigned int i = 0; i < ln.size(); i++)
{
delete ln[i];
}
}
template <typename P>
void test_ccw()
{
typedef boost::geometry::polygon<P, std::vector, std::vector, true> polygon;
test_one<polygon, polygon, polygon>("simplex_normal",
simplex_normal[0], simplex_normal[1],
1, 7, 5.47363293);
}
int test_main(int, char* [])
{
test_all<boost::geometry::point_xy<float> >();
test_all<boost::geometry::point_xy<double> >();
//test_ccw<boost::geometry::point_xy<double> >();
#if defined(HAVE_CLN)
test_all<boost::geometry::point_xy<boost::numeric_adaptor::cln_value_type> >();
#endif
#if defined(HAVE_GMP)
//test_all<boost::geometry::point_xy<boost::numeric_adaptor::gmp_value_type> >();
#endif
//test_pointer_version();
return 0;
}