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
|
#include <mbgl/test/util.hpp>
#include <mbgl/layout/merge_lines.hpp>
#include <mbgl/layout/symbol_feature.hpp>
const std::u16string aaa = u"a";
const std::u16string bbb = u"b";
using namespace mbgl;
class GeometryTileFeatureStub : public GeometryTileFeature {
public:
GeometryTileFeatureStub(optional<FeatureIdentifier> id_, FeatureType type_, GeometryCollection geometry_,
std::unordered_map<std::string, Value> properties_) :
id(id_),
type(type_),
geometry(geometry_),
properties(properties_)
{}
FeatureType getType() const override { return type; }
optional<Value> getValue(const std::string& key) const override {
auto it = properties.find(key);
if (it != properties.end()) {
return it->second;
}
return {};
};
std::unordered_map<std::string,Value> getProperties() const override { return properties; };
optional<FeatureIdentifier> getID() const override { return id; };
GeometryCollection getGeometries() const override { return geometry; };
optional<FeatureIdentifier> id;
FeatureType type;
GeometryCollection geometry;
std::unordered_map<std::string,Value> properties;
};
class SymbolFeatureStub : public SymbolFeature {
public:
SymbolFeatureStub(optional<FeatureIdentifier> id_, FeatureType type_, GeometryCollection geometry_,
std::unordered_map<std::string, Value> properties_, optional<std::u16string> text_,
optional<std::string> icon_, std::size_t index_) :
SymbolFeature(std::make_unique<GeometryTileFeatureStub>(id_, type_, geometry_, properties_))
{
text = text_;
icon = icon_;
index = index_;
}
};
TEST(MergeLines, SameText) {
// merges lines with the same text
std::vector<mbgl::SymbolFeature> input1;
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, {}, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, {}, bbb, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{8, 0}, {9, 0}}}, {}, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, {}, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{6, 0}, {7, 0}, {8, 0}}}, {}, aaa, {}, 0));
input1.push_back(SymbolFeatureStub({}, FeatureType::LineString, {{{5, 0}, {6, 0}}}, {}, aaa, {}, 0));
const std::vector<GeometryTileFeatureStub> expected1 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}}}, {} },
{ {}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, {} },
{ {}, FeatureType::LineString, {{{5, 0}, {6, 0}, {7, 0}, {8, 0}, {9, 0}}}, {} },
{ {}, FeatureType::LineString, {{}}, {} },
{ {}, FeatureType::LineString, {{}}, {} },
{ {}, FeatureType::LineString, {{}}, {} }
};
mbgl::util::mergeLines(input1);
for (int i = 0; i < 6; i++) {
EXPECT_TRUE(input1[i].geometry == expected1[i].getGeometries());
}
}
TEST(MergeLines, BothEnds) {
// mergeLines handles merge from both ends
std::vector<mbgl::SymbolFeature> input2;
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, {}, aaa, {}, 0 });
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{4, 0}, {5, 0}, {6, 0}}}, {}, aaa, {}, 0 });
input2.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, {}, aaa, {}, 0 });
const std::vector<GeometryTileFeatureStub> expected2 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {5, 0}, {6, 0}}}, {} },
{ {}, FeatureType::LineString, {{}}, {} },
{ {}, FeatureType::LineString, {{}}, {} }
};
mbgl::util::mergeLines(input2);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input2[i].geometry == expected2[i].getGeometries());
}
}
TEST(MergeLines, CircularLines) {
// mergeLines handles circular lines
std::vector<mbgl::SymbolFeature> input3;
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}}}, {}, aaa, {}, 0 });
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{2, 0}, {3, 0}, {4, 0}}}, {}, aaa, {}, 0 });
input3.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{{4, 0}, {0, 0}}}, {}, aaa, {}, 0 });
const std::vector<GeometryTileFeatureStub> expected3 = {
{ {}, FeatureType::LineString, {{{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {0, 0}}}, {} },
{ {}, FeatureType::LineString, {{}}, {} },
{ {}, FeatureType::LineString, {{}}, {} }
};
mbgl::util::mergeLines(input3);
for (int i = 0; i < 3; i++) {
EXPECT_TRUE(input3[i].geometry == expected3[i].getGeometries());
}
}
TEST(MergeLines, EmptyOuterGeometry) {
std::vector<mbgl::SymbolFeature> input;
input.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {}, {}, aaa, {}, 0 });
const std::vector<GeometryTileFeatureStub> expected = { { {}, FeatureType::LineString, {}, {} } };
mbgl::util::mergeLines(input);
EXPECT_EQ(input[0].geometry, expected[0].getGeometries());
}
TEST(MergeLines, EmptyInnerGeometry) {
std::vector<mbgl::SymbolFeature> input;
input.push_back(SymbolFeatureStub { {}, FeatureType::LineString, {{}}, {}, aaa, {}, 0 });
const std::vector<GeometryTileFeatureStub> expected = { { {}, FeatureType::LineString, {{}}, {} } };
mbgl::util::mergeLines(input);
EXPECT_EQ(input[0].geometry, expected[0].getGeometries());
}
|