util_inl.hpp 3.85 KB
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/*M///////////////////////////////////////////////////////////////////////////////////////
//
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//
//  By downloading, copying, installing or using the software you agree to this license.
//  If you do not agree to this license, do not download, install,
//  copy or use the software.
//
//
//                          License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
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// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
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//   * Redistribution's of source code must retain the above copyright notice,
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#ifndef __OPENCV_STITCHING_UTIL_INL_HPP__
#define __OPENCV_STITCHING_UTIL_INL_HPP__

#include <queue>
#include "opencv2/core.hpp"
#include "util.hpp" // Make your IDE see declarations

//! @cond IGNORED
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namespace cv {
namespace detail {

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template <typename B>
B Graph::forEach(B body) const
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{
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    for (int i = 0; i < numVertices(); ++i)
    {
        std::list<GraphEdge>::const_iterator edge = edges_[i].begin();
        for (; edge != edges_[i].end(); ++edge)
            body(*edge);
    }
    return body;
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}


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template <typename B>
B Graph::walkBreadthFirst(int from, B body) const
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{
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    std::vector<bool> was(numVertices(), false);
    std::queue<int> vertices;
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    was[from] = true;
    vertices.push(from);
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    while (!vertices.empty())
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    {
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        int vertex = vertices.front();
        vertices.pop();
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        std::list<GraphEdge>::const_iterator edge = edges_[vertex].begin();
        for (; edge != edges_[vertex].end(); ++edge)
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        {
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            if (!was[edge->to])
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            {
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                body(*edge);
                was[edge->to] = true;
                vertices.push(edge->to);
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            }
        }
    }
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    return body;
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}


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//////////////////////////////////////////////////////////////////////////////
// Some auxiliary math functions

static inline
float normL2(const Point3f& a)
{
    return a.x * a.x + a.y * a.y + a.z * a.z;
}


static inline
float normL2(const Point3f& a, const Point3f& b)
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{
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    return normL2(a - b);
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}


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static inline
double normL2sq(const Mat &r)
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{
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    return r.dot(r);
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}


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static inline int sqr(int x) { return x * x; }
static inline float sqr(float x) { return x * x; }
static inline double sqr(double x) { return x * x; }

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} // namespace detail
} // namespace cv
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//! @endcond

#endif // __OPENCV_STITCHING_UTIL_INL_HPP__