Diff: include/opencv2/flann/params.h

Revision:

0:0e0631af0305

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/opencv2/flann/params.h	Fri Jan 29 04:53:38 2021 +0000
@@ -0,0 +1,99 @@
+/***********************************************************************
+ * Software License Agreement (BSD License)
+ *
+ * Copyright 2008-2011  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
+ * Copyright 2008-2011  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *************************************************************************/
+
+
+#ifndef OPENCV_FLANN_PARAMS_H_
+#define OPENCV_FLANN_PARAMS_H_
+
+#include "any.h"
+#include "general.h"
+#include <iostream>
+#include <map>
+
+
+namespace cvflann
+{
+
+typedef std::map<cv::String, any> IndexParams;
+
+struct SearchParams : public IndexParams
+{
+    SearchParams(int checks = 32, float eps = 0, bool sorted = true )
+    {
+        // how many leafs to visit when searching for neighbours (-1 for unlimited)
+        (*this)["checks"] = checks;
+        // search for eps-approximate neighbours (default: 0)
+        (*this)["eps"] = eps;
+        // only for radius search, require neighbours sorted by distance (default: true)
+        (*this)["sorted"] = sorted;
+    }
+};
+
+
+template<typename T>
+T get_param(const IndexParams& params, cv::String name, const T& default_value)
+{
+    IndexParams::const_iterator it = params.find(name);
+    if (it != params.end()) {
+        return it->second.cast<T>();
+    }
+    else {
+        return default_value;
+    }
+}
+
+template<typename T>
+T get_param(const IndexParams& params, cv::String name)
+{
+    IndexParams::const_iterator it = params.find(name);
+    if (it != params.end()) {
+        return it->second.cast<T>();
+    }
+    else {
+        throw FLANNException(cv::String("Missing parameter '")+name+cv::String("' in the parameters given"));
+    }
+}
+
+inline void print_params(const IndexParams& params, std::ostream& stream)
+{
+    IndexParams::const_iterator it;
+
+    for(it=params.begin(); it!=params.end(); ++it) {
+        stream << it->first << " : " << it->second << std::endl;
+    }
+}
+
+inline void print_params(const IndexParams& params)
+{
+    print_params(params, std::cout);
+}
+
+}
+
+
+#endif /* OPENCV_FLANN_PARAMS_H_ */