v0.2.48..v0.2.49 changeset RandomNodeDuplicator.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/ops/RandomNodeDuplicator.cpp b/hoot-core/src/main/cpp/hoot/core/ops/RandomNodeDuplicator.cpp
new file mode 100644
index 0000000..ab6b2d4
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/ops/RandomNodeDuplicator.cpp
@@ -0,0 +1,116 @@
+/*
+ * This file is part of Hootenanny.
+ *
+ * Hootenanny is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --------------------------------------------------------------------
+ *
+ * The following copyright notices are generated automatically. If you
+ * have a new notice to add, please use the format:
+ * " * @copyright Copyright ..."
+ * This will properly maintain the copyright information. DigitalGlobe
+ * copyrights will be updated automatically.
+ *
+ * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+#include "RandomNodeDuplicator.h"
+
+// boost
+#include <boost/random/normal_distribution.hpp>
+#include <boost/random/uniform_real.hpp>
+#include <boost/random/variate_generator.hpp>
+
+// hoot
+#include <hoot/core/util/Factory.h>
+#include <hoot/core/elements/OsmMap.h>
+#include <hoot/core/util/MapProjector.h>
+#include <hoot/core/util/Settings.h>
+#include <hoot/core/util/ConfigOptions.h>
+#include <hoot/core/util/RandomNumberUtils.h>
+#include <hoot/core/util/Log.h>
+
+namespace hoot
+{
+
+HOOT_FACTORY_REGISTER(OsmMapOperation, RandomNodeDuplicator)
+
+RandomNodeDuplicator::RandomNodeDuplicator()
+{
+  _localRng.reset(new boost::minstd_rand(1));
+  _rng = _localRng.get();
+}
+
+void RandomNodeDuplicator::apply(OsmMapPtr& map)
+{
+  _numAffected = 0;
+
+  MapProjector::projectToPlanar(map);
+
+  boost::uniform_real<> uni(0.0, 1.0);
+  boost::normal_distribution<> nd;
+  boost::variate_generator<boost::minstd_rand&, boost::normal_distribution<>> N(*_rng, nd);
+
+  // make a copy since we'll be modifying the map as we go.
+  NodeMap nm = map->getNodes();
+  for (NodeMap::const_iterator it = nm.begin(); it != nm.end(); ++it)
+  {
+    if (uni(*_rng) < _p)
+    {
+      const NodePtr& n = it->second;
+      int copies = round(fabs(N() * _duplicateSigma)) + 1;
+
+      for (int i = 0; i < copies; i++)
+      {
+        duplicateNode(n, map);
+      }
+    }
+  }
+}
+
+void RandomNodeDuplicator::duplicateNode(const NodePtr& n, const OsmMapPtr& map)
+{
+  boost::normal_distribution<> nd;
+  boost::variate_generator<boost::minstd_rand&, boost::normal_distribution<>> N(*_rng, nd);
+
+  Meters sigma = n->getCircularError() / 2.0;
+  double x = n->getX() + N() * sigma * _moveMultiplier;
+  double y = n->getY() + N() * sigma * _moveMultiplier;
+
+  NodePtr newNode(
+    new Node(n->getStatus(), map->createNextNodeId(), x, y, n->getCircularError()));
+
+  map->addNode(newNode);
+
+  _numAffected++;
+}
+
+void RandomNodeDuplicator::setConfiguration(const Settings& conf)
+{
+  ConfigOptions configOptions(conf);
+  setDuplicateSigma(configOptions.getRandomNodeDuplicatorSigma());
+  setProbability(configOptions.getRandomNodeDuplicatorProbability());
+  setMoveMultiplier(configOptions.getRandomNodeDuplicatorMoveMultiplier());
+  const int seed = configOptions.getRandomSeed();
+  LOG_VARD(seed);
+  if (seed == -1)
+  {
+    _rng->seed(RandomNumberUtils::generateSeed());
+  }
+  else
+  {
+    _rng->seed(seed);
+  }
+}
+
+}