OLD | NEW |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_GFX_POINT3_F_H_ | 5 // TODO(beng): remove once callsites are patched. |
6 #define UI_GFX_POINT3_F_H_ | 6 #include "ui/gfx/geometry/point3_f.h" |
7 | 7 |
8 #include <string> | |
9 | |
10 #include "ui/gfx/gfx_export.h" | |
11 #include "ui/gfx/point_f.h" | |
12 #include "ui/gfx/vector3d_f.h" | |
13 | |
14 namespace gfx { | |
15 | |
16 // A point has an x, y and z coordinate. | |
17 class GFX_EXPORT Point3F { | |
18 public: | |
19 Point3F() : x_(0), y_(0), z_(0) {} | |
20 | |
21 Point3F(float x, float y, float z) : x_(x), y_(y), z_(z) {} | |
22 | |
23 explicit Point3F(const PointF& point) : x_(point.x()), y_(point.y()), z_(0) {} | |
24 | |
25 ~Point3F() {} | |
26 | |
27 void Scale(float scale) { | |
28 Scale(scale, scale, scale); | |
29 } | |
30 | |
31 void Scale(float x_scale, float y_scale, float z_scale) { | |
32 SetPoint(x() * x_scale, y() * y_scale, z() * z_scale); | |
33 } | |
34 | |
35 float x() const { return x_; } | |
36 float y() const { return y_; } | |
37 float z() const { return z_; } | |
38 | |
39 void set_x(float x) { x_ = x; } | |
40 void set_y(float y) { y_ = y; } | |
41 void set_z(float z) { z_ = z; } | |
42 | |
43 void SetPoint(float x, float y, float z) { | |
44 x_ = x; | |
45 y_ = y; | |
46 z_ = z; | |
47 } | |
48 | |
49 // Offset the point by the given vector. | |
50 void operator+=(const Vector3dF& v) { | |
51 x_ += v.x(); | |
52 y_ += v.y(); | |
53 z_ += v.z(); | |
54 } | |
55 | |
56 // Offset the point by the given vector's inverse. | |
57 void operator-=(const Vector3dF& v) { | |
58 x_ -= v.x(); | |
59 y_ -= v.y(); | |
60 z_ -= v.z(); | |
61 } | |
62 | |
63 // Returns the squared euclidean distance between two points. | |
64 float SquaredDistanceTo(const Point3F& other) const { | |
65 float dx = x_ - other.x_; | |
66 float dy = y_ - other.y_; | |
67 float dz = z_ - other.z_; | |
68 return dx * dx + dy * dy + dz * dz; | |
69 } | |
70 | |
71 PointF AsPointF() const { return PointF(x_, y_); } | |
72 | |
73 // Returns a string representation of 3d point. | |
74 std::string ToString() const; | |
75 | |
76 private: | |
77 float x_; | |
78 float y_; | |
79 float z_; | |
80 | |
81 // copy/assign are allowed. | |
82 }; | |
83 | |
84 inline bool operator==(const Point3F& lhs, const Point3F& rhs) { | |
85 return lhs.x() == rhs.x() && lhs.y() == rhs.y() && lhs.z() == rhs.z(); | |
86 } | |
87 | |
88 inline bool operator!=(const Point3F& lhs, const Point3F& rhs) { | |
89 return !(lhs == rhs); | |
90 } | |
91 | |
92 // Add a vector to a point, producing a new point offset by the vector. | |
93 GFX_EXPORT Point3F operator+(const Point3F& lhs, const Vector3dF& rhs); | |
94 | |
95 // Subtract a vector from a point, producing a new point offset by the vector's | |
96 // inverse. | |
97 GFX_EXPORT Point3F operator-(const Point3F& lhs, const Vector3dF& rhs); | |
98 | |
99 // Subtract one point from another, producing a vector that represents the | |
100 // distances between the two points along each axis. | |
101 GFX_EXPORT Vector3dF operator-(const Point3F& lhs, const Point3F& rhs); | |
102 | |
103 inline Point3F PointAtOffsetFromOrigin(const Vector3dF& offset) { | |
104 return Point3F(offset.x(), offset.y(), offset.z()); | |
105 } | |
106 | |
107 inline Point3F ScalePoint(const Point3F& p, | |
108 float x_scale, | |
109 float y_scale, | |
110 float z_scale) { | |
111 return Point3F(p.x() * x_scale, p.y() * y_scale, p.z() * z_scale); | |
112 } | |
113 | |
114 inline Point3F ScalePoint(const Point3F& p, float scale) { | |
115 return ScalePoint(p, scale, scale, scale); | |
116 } | |
117 | |
118 } // namespace gfx | |
119 | |
120 #endif // UI_GFX_POINT3_F_H_ | |
OLD | NEW |