mirror of
https://github.com/boostorg/geometry.git
synced 2025-05-10 07:34:03 +00:00
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
// Unit Test
|
|
|
|
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
|
|
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
|
|
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
|
|
|
|
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
|
|
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
|
|
|
|
// 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 <iterator>
|
|
#include <string>
|
|
|
|
|
|
#include <geometry_test_common.hpp>
|
|
|
|
#include <boost/geometry/algorithms/num_points.hpp>
|
|
#include <boost/geometry/extensions/algorithms/remove_holes_if.hpp>
|
|
#include <boost/geometry/algorithms/make.hpp>
|
|
#include <boost/geometry/geometries/geometries.hpp>
|
|
#include <boost/geometry/geometries/point_xy.hpp>
|
|
#include <boost/geometry/io/wkt/read.hpp>
|
|
|
|
#include <boost/geometry/strategies/strategies.hpp>
|
|
|
|
|
|
|
|
template <typename G, typename Predicate>
|
|
void test_remove_holes_if(std::string const& wkt, Predicate const& predicate,
|
|
int expected_points)
|
|
{
|
|
G g;
|
|
bg::read_wkt(wkt, g);
|
|
bg::remove_holes_if(g, predicate);
|
|
BOOST_CHECK_EQUAL(bg::num_points(g), expected_points);
|
|
}
|
|
|
|
template <typename P>
|
|
void test_all()
|
|
{
|
|
bg::elongated_hole<bg::model::ring<P> > elongated(0.05);
|
|
|
|
// No holes
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0))", elongated, 5);
|
|
|
|
// Square hole (ratio 1/4), kept
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0), (1 1,1 2,2 2,2 1,1 1))", elongated, 10);
|
|
|
|
// Elongated hole
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0), (1 1,1 2,1.02 2,1.02 1,1 1))", elongated, 5);
|
|
|
|
// Invalid hole - removed by "elongated" predicate as well
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0), (1 1,1 2))", elongated, 5);
|
|
|
|
// Invalid hole
|
|
bg::invalid_hole<bg::model::ring<P> > invalid;
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0), (1 1,1 2))", invalid, 5);
|
|
|
|
// Valid hole
|
|
test_remove_holes_if<bg::model::polygon<P> >("POLYGON((0 0,0 4,4 4,4 0,0 0), (1 1,1 2,1.02 2,1.02 1,1 1))", invalid, 10);
|
|
|
|
}
|
|
|
|
int test_main(int, char* [])
|
|
{
|
|
//test_all<bg::model::d2::point_xy<float> >();
|
|
test_all<bg::model::d2::point_xy<double> >();
|
|
|
|
return 0;
|
|
}
|