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OpenCV/include/opencv2/stitching/detail/util_inl.hpp

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+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  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.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#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
+
+namespace cv {
+namespace detail {
+
+template <typename B>
+B Graph::forEach(B body) const
+{
+    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;
+}
+
+
+template <typename B>
+B Graph::walkBreadthFirst(int from, B body) const
+{
+    std::vector<bool> was(numVertices(), false);
+    std::queue<int> vertices;
+
+    was[from] = true;
+    vertices.push(from);
+
+    while (!vertices.empty())
+    {
+        int vertex = vertices.front();
+        vertices.pop();
+
+        std::list<GraphEdge>::const_iterator edge = edges_[vertex].begin();
+        for (; edge != edges_[vertex].end(); ++edge)
+        {
+            if (!was[edge->to])
+            {
+                body(*edge);
+                was[edge->to] = true;
+                vertices.push(edge->to);
+            }
+        }
+    }
+
+    return body;
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+// 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)
+{
+    return normL2(a - b);
+}
+
+
+static inline
+double normL2sq(const Mat &r)
+{
+    return r.dot(r);
+}
+
+
+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; }
+
+} // namespace detail
+} // namespace cv
+
+//! @endcond
+
+#endif // OPENCV_STITCHING_UTIL_INL_HPP