boost_mirror/geometry
1
0
Fork 0
mirror of https://github.com/boostorg/geometry.git synced 2025-05-11 13:34:10 +00:00
Code Issues Packages Projects Releases Wiki Activity

[test][algorithms][sym_difference] add very simple unit test for testing the symmetric

Browse Source 
difference of two areal geometries
This commit is contained in:
Menelaos Karavelas 2015-07-02 00:45:31 +03:00
parent 8b282aeaf8
commit e3e7116c4c
2 changed files with 138 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
test/algorithms/set_operations/sym_difference/Jamfile.v2
View File

@ -16,5 +16,6 @@
test-suite boost-geometry-algorithms-sym_difference
:
[ run sym_difference_areal_areal.cpp : : : : algorithms_sym_difference_areal_areal ]
[ run sym_difference_linear_linear.cpp : : : : algorithms_sym_difference_linear_linear ]
;

137
test/algorithms/set_operations/sym_difference/sym_difference_areal_areal.cpp Normal file
View File

@ -0,0 +1,137 @@
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2014-2015 Oracle and/or its affiliates.
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
#include <iostream>
#ifndef BOOST_TEST_MODULE
#define BOOST_TEST_MODULE test_sym_difference_areal_areal
#endif
#ifdef BOOST_GEOMETRY_TEST_DEBUG
#define BOOST_GEOMETRY_DEBUG_TURNS
#define BOOST_GEOMETRY_DEBUG_SEGMENT_IDENTIFIER
#endif
#include <boost/test/included/unit_test.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/multi_linestring.hpp>
#include <boost/geometry/algorithms/sym_difference.hpp>
#include "../difference/test_difference.hpp"
#include <from_wkt.hpp>
typedef bg::model::point<double,2,bg::cs::cartesian> point_type;
typedef bg::model::ring<point_type> ring_type; // ccw, closed
typedef bg::model::polygon<point_type> polygon_type; // ccw, closed
typedef bg::model::multi_polygon<polygon_type> multi_polygon_type;
double const default_tolerance = 0.0001;
template
<
typename Areal1, typename Areal2, typename PolygonOut
>
struct test_sym_difference_of_areal_geometries
{
static inline void apply(std::string const& case_id,
Areal1 const& areal1,
Areal2 const& areal2,
int expected_polygon_count,
int expected_point_count,
double expected_area,
double tolerance = default_tolerance)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
bg::model::multi_polygon<PolygonOut> sdf;
bg::sym_difference(areal1, areal2, sdf);
std::cout << "Case ID: " << case_id << std::endl;
std::cout << "Geometry #1: " << bg::wkt(areal1) << std::endl;
std::cout << "Geometry #2: " << bg::wkt(areal2) << std::endl;
std::cout << "Sym diff: " << bg::wkt(sdf) << std::endl;
std::cout << "Polygon count: expected: "
<< expected_polygon_count
<< "; detected: " << sdf.size() << std::endl;
std::cout << "Point count: expected: "
<< expected_point_count
<< "; detected: " << bg::num_points(sdf) << std::endl;
std::cout << "Area: expected: "
<< expected_area
<< "; detected: " << bg::area(sdf) << std::endl;
#endif
test_difference
<
PolygonOut
>(case_id, areal1, areal2,
expected_polygon_count, expected_point_count, expected_area,
tolerance, true);
}
};
//===========================================================================
//===========================================================================
//===========================================================================
BOOST_AUTO_TEST_CASE( test_sym_difference_ring_ring )
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl << std::endl << std::endl;
std::cout << "*** RING / RING SYMMETRIC DIFFERENCE ***" << std::endl;
std::cout << std::endl;
#endif
typedef ring_type R;
typedef polygon_type PG;
typedef test_sym_difference_of_areal_geometries<R, R, PG> tester;
tester::apply("r-r-sdf00",
from_wkt<R>("POLYGON((0 0,0 10,10 10,10 0,0 0))"),
from_wkt<R>("POLYGON((10 0,10 20,20 20,20 0,10 0))"),
1,
8,
300);
tester::apply("r-r-sdf01",
from_wkt<R>("POLYGON((0 0,0 10,10 10,10 0,0 0))"),
from_wkt<R>("POLYGON((9 0,9 20,20 20,20 0,9 0))"),
2,
12,
300);
}
BOOST_AUTO_TEST_CASE( test_sym_difference_polygon_multipolygon )
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl << std::endl << std::endl;
std::cout << "*** POLYGON / MULTIPOLYGON SYMMETRIC DIFFERENCE ***"
<< std::endl;
std::cout << std::endl;
#endif
typedef polygon_type PG;
typedef multi_polygon_type MPG;
typedef test_sym_difference_of_areal_geometries<PG, MPG, PG> tester;
tester::apply
("pg-mpg-sdf00",
from_wkt<PG>("POLYGON((10 0,10 10,20 10,20 0,10 0))"),
from_wkt<MPG>("MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)),\
((20 0,20 10,30 10,30 0,20 0)))"),
1,
9,
300);
}