1 /*M///////////////////////////////////////////////////////////////////////////////////////
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8 //
9 //
10 // License Agreement
11 // For Open Source Computer Vision Library
12 //
13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
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41 //M*/
42
43 #ifndef __OPENCV_STITCHING_UTIL_INL_HPP__
44 #define __OPENCV_STITCHING_UTIL_INL_HPP__
45
46 #include <queue>
47 #include "opencv2/core.hpp"
48 #include "util.hpp" // Make your IDE see declarations
49
50 //! @cond IGNORED
51
52 namespace cv {
53 namespace detail {
54
55 template <typename B>
forEach(B body) const56 B Graph::forEach(B body) const
57 {
58 for (int i = 0; i < numVertices(); ++i)
59 {
60 std::list<GraphEdge>::const_iterator edge = edges_[i].begin();
61 for (; edge != edges_[i].end(); ++edge)
62 body(*edge);
63 }
64 return body;
65 }
66
67
68 template <typename B>
walkBreadthFirst(int from,B body) const69 B Graph::walkBreadthFirst(int from, B body) const
70 {
71 std::vector<bool> was(numVertices(), false);
72 std::queue<int> vertices;
73
74 was[from] = true;
75 vertices.push(from);
76
77 while (!vertices.empty())
78 {
79 int vertex = vertices.front();
80 vertices.pop();
81
82 std::list<GraphEdge>::const_iterator edge = edges_[vertex].begin();
83 for (; edge != edges_[vertex].end(); ++edge)
84 {
85 if (!was[edge->to])
86 {
87 body(*edge);
88 was[edge->to] = true;
89 vertices.push(edge->to);
90 }
91 }
92 }
93
94 return body;
95 }
96
97
98 //////////////////////////////////////////////////////////////////////////////
99 // Some auxiliary math functions
100
101 static inline
normL2(const Point3f & a)102 float normL2(const Point3f& a)
103 {
104 return a.x * a.x + a.y * a.y + a.z * a.z;
105 }
106
107
108 static inline
normL2(const Point3f & a,const Point3f & b)109 float normL2(const Point3f& a, const Point3f& b)
110 {
111 return normL2(a - b);
112 }
113
114
115 static inline
normL2sq(const Mat & r)116 double normL2sq(const Mat &r)
117 {
118 return r.dot(r);
119 }
120
121
sqr(int x)122 static inline int sqr(int x) { return x * x; }
sqr(float x)123 static inline float sqr(float x) { return x * x; }
sqr(double x)124 static inline double sqr(double x) { return x * x; }
125
126 } // namespace detail
127 } // namespace cv
128
129 //! @endcond
130
131 #endif // __OPENCV_STITCHING_UTIL_INL_HPP__
132