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
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_POINT3_F_H_
#define UI_GFX_POINT3_F_H_
#include <string>
#include "ui/base/ui_export.h"
#include "ui/gfx/point_f.h"
#include "ui/gfx/vector3d_f.h"
namespace gfx {
// A point has an x, y and z coordinate.
class UI_EXPORT Point3F {
public:
Point3F() : x_(0), y_(0), z_(0) {}
Point3F(float x, float y, float z) : x_(x), y_(y), z_(z) {}
explicit Point3F(const PointF& point) : x_(point.x()), y_(point.y()), z_(0) {}
~Point3F() {}
float x() const { return x_; }
float y() const { return y_; }
float z() const { return z_; }
void set_x(float x) { x_ = x; }
void set_y(float y) { y_ = y; }
void set_z(float z) { z_ = z; }
void SetPoint(float x, float y, float z) {
x_ = x;
y_ = y;
z_ = z;
}
// Returns the squared euclidean distance between two points.
float SquaredDistanceTo(const Point3F& other) const {
float dx = x_ - other.x_;
float dy = y_ - other.y_;
float dz = z_ - other.z_;
return dx * dx + dy * dy + dz * dz;
}
PointF AsPointF() const { return PointF(x_, y_); }
// Returns a string representation of 3d point.
std::string ToString() const;
private:
float x_;
float y_;
float z_;
// copy/assign are allowed.
};
inline bool operator==(const Point3F& lhs, const Point3F& rhs) {
return lhs.x() == rhs.x() && lhs.y() == rhs.y() && lhs.z() == rhs.z();
}
inline bool operator!=(const Point3F& lhs, const Point3F& rhs) {
return !(lhs == rhs);
}
// Add a vector to a point, producing a new point offset by the vector.
UI_EXPORT Point3F operator+(const Point3F& lhs, const Vector3dF& rhs);
// Subtract a vector from a point, producing a new point offset by the vector's
// inverse.
UI_EXPORT Point3F operator-(const Point3F& lhs, const Vector3dF& rhs);
// Subtract one point from another, producing a vector that represents the
// distances between the two points along each axis.
UI_EXPORT Vector3dF operator-(const Point3F& lhs, const Point3F& rhs);
inline Point3F PointAtOffsetFromOrigin(const Vector3dF& offset) {
return Point3F(offset.x(), offset.y(), offset.z());
}
} // namespace gfx
#endif // UI_GFX_POINT3_F_H_
|
