-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathline_segment_2d_test.cpp
139 lines (127 loc) · 3.61 KB
/
line_segment_2d_test.cpp
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
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "line_segment_2d.hpp"
#include <gtest/gtest.h>
TEST(LineSegment2DTest, CTOR)
{
LineSegment2D l1(1.0f, 2.0f, 3.0f, 4.0f);
EXPECT_EQ(1.0f, l1.p1.x);
EXPECT_EQ(2.0f, l1.p1.y);
EXPECT_EQ(3.0f, l1.p2.x);
EXPECT_EQ(4.0f, l1.p2.y);
Point2D p1(1.0f, 2.0f);
Point2D p2(3.0f, 4.0f);
LineSegment2D l2(p1, p2);
EXPECT_EQ(1.0f, l2.p1.x);
EXPECT_EQ(2.0f, l2.p1.y);
EXPECT_EQ(3.0f, l2.p2.x);
EXPECT_EQ(4.0f, l2.p2.y);
}
TEST(LineSegment2DTest, bound)
{
{
LineSegment2D l1(0.0f, 1.0f, 1.0f, 1.0f);
LineSegment2D l2(0.0f, 0.0f, 0.8f, 1.5f);
std::vector<Point2D> pa1;
EXPECT_TRUE(l2.bound(pa1, l1));
EXPECT_EQ(static_cast<size_t>(3), pa1.size());
}
{
LineSegment2D l1(1.0f, 0.0f, 1.0f, 1.0f);
LineSegment2D l2(0.0f, 0.0f, 1.5f, 0.8f);
std::vector<Point2D> pa1;
EXPECT_TRUE(l2.bound(pa1, l1));
EXPECT_EQ(static_cast<size_t>(3), pa1.size());
}
{
LineSegment2D l1(0.0f, 2.0f, 2.0f, 0.0f);
LineSegment2D l2(1.0f, 0.0f, 1.0f, 2.0f);
std::vector<Point2D> pa1;
EXPECT_TRUE(l2.bound(pa1, l1));
EXPECT_EQ(static_cast<size_t>(3), pa1.size());
EXPECT_EQ(l2.p1, pa1[0]);
EXPECT_NEAR(0.0f, pa1[2].x, FLT_EPSILON);
EXPECT_NEAR(1.0f, pa1[2].y, FLT_EPSILON);
}
}
TEST(LineSegment2DTest, cross_point)
{
LineSegment2D l1(0.0f, 0.0f, 1.0f, 1.0f);
LineSegment2D l2(1.0f, 0.0f, 0.0f, 1.0f);
Point2D cp1;
Point2D cp2(0.5f, 0.5f);
float t1, t2;
EXPECT_TRUE(l1.cross_point(l2, &cp1, &t1, &t2));
EXPECT_EQ(cp2, cp1);
EXPECT_EQ(0.5f, t1);
EXPECT_EQ(0.5f, t2);
}
TEST(LineSegment2DTest, inspect)
{
LineSegment2D l1(1.23f, 0.456f, 7.8f, 9.012f);
EXPECT_EQ(std::string("(1.23, 0.46)-(7.80, 9.01)"), l1.inspect());
}
TEST(LineSegment2DTest, intersection_point)
{
#if 0
LineSegment2D l1(1.0f, 0.0f, 0.0f, 1.0f);
LineSegment2D l2(0.0f, 0.0f, 1.0f, 1.0f);
Point2D p;
EXPECT_TRUE(l1.intersection_point_with(p, l2));
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.x, 0.01f);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.y, 0.01f);
LineSegment2D l3(0.0f, 1.0f, 1.0f, 0.0f);
EXPECT_TRUE(l3.intersection_point_with(p, l2));
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.x, 0.01f);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.y, 0.01f);
LineSegment2D l4(1.0f, 1.0f, 0.0f, 0.0f);
EXPECT_TRUE(l3.intersection_point_with(p, l4));
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.x, 0.01f);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5f, p.y, 0.01f);
#else
LineSegment2D l1(0.0f, 0.0f, 1.0f, 1.0f);
LineSegment2D l2(1.0f, 0.0f, 0.0f, 1.0f);
Point2D cp1;
Point2D cp2(0.5f, 0.5f);
EXPECT_TRUE(l1.intersection_point_with(cp1, l2));
EXPECT_EQ(cp2, cp1);
#endif
}
TEST(LineSegment2DTest, is_crossed)
{
LineSegment2D l1(0.0f, 0.0f, 1.0f, 1.0f);
LineSegment2D l2(1.0f, 0.0f, 0.0f, 1.0f);
LineSegment2D l3(0.5f, 0.5f, 1.0f, 0.0f);
LineSegment2D l4(2.0f, 3.0f, 4.0f, 5.0f);
LineSegment2D l5(1.0f, 0.0f, 0.6f, 0.4f);
LineSegment2D l6(2.0f, 1.0f, 1.0f, 2.0f);
EXPECT_TRUE( l1.is_crossed(l2));
EXPECT_TRUE( l1.is_crossed(l3));
EXPECT_TRUE(!l1.is_crossed(l4));
EXPECT_TRUE(!l1.is_crossed(l5));
EXPECT_TRUE(!l1.is_crossed(l6));
}
TEST(LineSegment2DTest, length)
{
LineSegment2D l1(0, 0, 0, 0);
EXPECT_EQ(0.0f, l1.length());
LineSegment2D l2(0, 0, 1, 0);
EXPECT_EQ(1.0f, l2.length());
}
TEST(LineSegment2DTest, side)
{
LineSegment2D l1(0.0f, 0.0f, 1.0f, 1.0f);
Point2D p1(0.0f, 1.0f);
EXPECT_EQ(-1.0f, l1.side(p1));
Point2D p2(0.5f, 0.5f);
EXPECT_EQ(0.0f, l1.side(p2));
Point2D p3(1.0f, 0.0f);
EXPECT_EQ(1.0f, l1.side(p3));
}
TEST(LineSegment2DTest, vector)
{
LineSegment2D l1(0, 0, 1, 1);
Vector2D v1(1, 1);
EXPECT_EQ(v1, l1.vector());
}