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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* (C) Copyright 1996- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to it by virtue of its status as an intergovernmental organisation nor
* does it submit to any jurisdiction.
*/
#include <memory>
#include "eckit/geo/Grid.h"
#include "eckit/geo/grid/regular/RegularGaussian.h"
#include "eckit/geo/util.h"
#include "eckit/spec/Custom.h"
#include "eckit/testing/Test.h"
namespace eckit::geo::test {
using grid::regular::RegularGaussian;
CASE("sizes") {
struct test_t {
explicit test_t(size_t N) : N(N), size(4 * N * 2 * N) {}
size_t N;
size_t size;
} tests[]{test_t{2}, test_t{3}, test_t{64}};
for (const auto& test : tests) {
std::unique_ptr<const Grid> grid1(GridFactory::build(spec::Custom({{"grid", "f" + std::to_string(test.N)}})));
std::unique_ptr<const Grid> grid2(GridFactory::build(spec::Custom({{"type", "regular_gg"}, {"N", test.N}})));
RegularGaussian grid3(test.N);
EXPECT(grid1->size() == test.size);
EXPECT(grid2->size() == test.size);
EXPECT(grid3.size() == test.size);
}
}
CASE("points") {
RegularGaussian grid(1);
const std::vector<PointLonLat> ref{
{0., 35.264389683}, {90., 35.264389683}, {180., 35.264389683}, {270., 35.264389683}, //
{0., -35.264389683}, {90., -35.264389683}, {180., -35.264389683}, {270., -35.264389683},
};
auto points = grid.to_points();
EXPECT(points.size() == grid.size());
ASSERT(points.size() == ref.size());
auto it = grid.begin();
for (size_t i = 0; i < points.size(); ++i) {
EXPECT(points_equal(ref[i], points[i]));
EXPECT(points_equal(ref[i], *it));
++it;
}
EXPECT(it == grid.end());
size_t i = 0;
for (const auto& it : grid) {
EXPECT(points_equal(ref[i++], it));
}
EXPECT(i == grid.size());
}
CASE("crop") {
spec::Custom a({{"grid", "f2"}});
std::unique_ptr<const Grid> grid1(GridFactory::build(a));
auto n1 = grid1->size();
EXPECT_EQUAL(n1, 32);
a.set("south", 0.);
std::unique_ptr<const Grid> grid2(GridFactory::build(a));
auto n2 = grid2->size();
EXPECT_EQUAL(n2, n1 / 2);
spec::Custom b{{{"grid", "f2"}, {"west", -180}}};
std::unique_ptr<const Grid> grid3(GridFactory::build(b));
auto n3 = grid3->size();
EXPECT_EQUAL(n3, n1);
auto bbox3 = grid3->boundingBox();
EXPECT(bbox3.periodic());
bbox3 = {bbox3.north(), bbox3.west(), bbox3.south(), 0.};
EXPECT_NOT(bbox3.periodic());
std::unique_ptr<const Grid> grid4(grid3->make_grid_cropped(bbox3));
auto n4 = grid4->size();
EXPECT_EQUAL(n4, 5 * 4); // Ni * Nj
b.set("east", -1.);
std::unique_ptr<const Grid> grid5(GridFactory::build(b));
auto n5 = grid5->size();
EXPECT_EQUAL(n5, 4 * 4); // Ni * Nj
const std::vector<PointLonLat> ref{
{-180., 59.444408289}, {-135., 59.444408289}, {-90., 59.444408289}, {-45., 59.444408289},
{-180., 19.875719147}, {-135., 19.875719147}, {-90., 19.875719147}, {-45., 19.875719147},
{-180., -19.875719147}, {-135., -19.875719147}, {-90., -19.875719147}, {-45., -19.875719147},
{-180., -59.444408289}, {-135., -59.444408289}, {-90., -59.444408289}, {-45., -59.444408289},
};
auto points5 = grid5->to_points();
EXPECT(points5.size() == grid5->size());
ASSERT(points5.size() == ref.size());
auto it = grid5->begin();
for (size_t i = 0; i < points5.size(); ++i) {
EXPECT(points_equal(ref[i], points5[i]));
EXPECT(points_equal(ref[i], *it));
++it;
}
EXPECT(it == grid5->end());
size_t i = 0;
for (const auto& it : *grid5) {
EXPECT(points_equal(ref[i++], it));
}
EXPECT_EQUAL(i, n5);
}
CASE("equals") {
std::unique_ptr<const Grid> grid1(GridFactory::build(spec::Custom({{"grid", "f3"}})));
std::unique_ptr<const Grid> grid2(new RegularGaussian(3));
EXPECT(*grid1 == *grid2);
}
} // namespace eckit::geo::test
int main(int argc, char** argv) {
return eckit::testing::run_tests(argc, argv);
}
|
