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11//                For Open Source Computer Vision Library
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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
52namespace cv {
53namespace detail {
54
55template <typename B>
56B 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
68template <typename B>
69B 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
101static inline
102float normL2(const Point3f& a)
103{
104    return a.x * a.x + a.y * a.y + a.z * a.z;
105}
106
107
108static inline
109float normL2(const Point3f& a, const Point3f& b)
110{
111    return normL2(a - b);
112}
113
114
115static inline
116double normL2sq(const Mat &r)
117{
118    return r.dot(r);
119}
120
121
122static inline int sqr(int x) { return x * x; }
123static inline float sqr(float x) { return x * x; }
124static 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