1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// 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 <geometry_test_common.hpp>
#include <boost/geometry/views/detail/range_type.hpp>
#include <boost/geometry/util/as_range.hpp>
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/io/wkt/read.hpp>
template <int D, typename Range>
double sum(Range const& range)
{
double s = 0.0;
for (typename boost::range_const_iterator<Range>::type it = boost::begin(range);
it != boost::end(range); ++it)
{
s += bg::get<D>(*it);
}
return s;
}
template <typename G>
void test_geometry(std::string const& wkt, double expected_x, double expected_y)
{
G geometry;
// Declare a range-type, compatible with boost::range,
// such that range_iterator etc could be called
typedef typename bg::detail::range_type<G>::type range_type;
bg::read_wkt(wkt, geometry);
double s = sum<0>(bg::as_range<range_type>(geometry));
BOOST_CHECK_CLOSE(s, expected_x, 0.001);
s = sum<1>(bg::as_range<range_type>(geometry));
BOOST_CHECK_CLOSE(s, expected_y, 0.001);
}
template <typename P>
void test_all()
{
// As-range utility should consider a geometry as a range, so
// linestring stays linestring
test_geometry<bg::model::linestring<P> >("LINESTRING(1 2,3 4)", 4, 6);
// polygon will only be outer-ring
test_geometry<bg::model::polygon<P> >("POLYGON((1 2,3 4))", 4, 6);
test_geometry<bg::model::polygon<P> >("POLYGON((1 2,3 4),(5 6,7 8,9 10))", 4, 6);
// the utility is useful for:
// - convex hull (holes do not count)
// - envelope (idem)
}
int test_main(int, char* [])
{
test_all<bg::model::point<double, 2, bg::cs::cartesian> >();
return 0;
}
|
