v0.2.48..v0.2.49 changeset PointsToPolysConverter.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/ops/PointsToPolysConverter.cpp b/hoot-core/src/main/cpp/hoot/core/ops/PointsToPolysConverter.cpp
new file mode 100644
index 0000000..4cc0423
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/ops/PointsToPolysConverter.cpp
@@ -0,0 +1,124 @@
+/*
+ * 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) 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+#include "PointsToPolysConverter.h"
+
+// hoot
+#include <hoot/core/util/Factory.h>
+#include <hoot/core/util/MapProjector.h>
+#include <hoot/core/ops/RemoveNodeByEid.h>
+#include <hoot/core/elements/OsmUtils.h>
+
+namespace hoot
+{
+
+HOOT_FACTORY_REGISTER(OsmMapOperation, PointsToPolysConverter)
+
+PointsToPolysConverter::PointsToPolysConverter(const double bufferSize) :
+_bufferSize(bufferSize)
+{
+}
+
+void PointsToPolysConverter::apply(OsmMapPtr& map)
+{
+  _numAffected = 0;
+  _numProcessed = 0;
+  _nodeIdsConverted.clear();
+
+  MapProjector::projectToPlanar(map);
+
+  LOG_DEBUG("Adding polys...");
+  // Make a copy of the nodes here, so as we add in polys with nodes, we don't process those as
+  // well.
+  NodeMap nodes = map->getNodes();
+  for (NodeMap::const_iterator it = nodes.begin(); it != nodes.end(); ++it)
+  {
+    const long nodeId = it->first;
+    LOG_VART(nodeId);
+    // not allowing child nodes to be converted (could/should we?)
+    LOG_VART(OsmUtils::isChild(ElementId(ElementType::Node, nodeId), map));
+    if (!OsmUtils::isChild(ElementId(ElementType::Node, nodeId), map))
+    {
+      _addPolyFromPoint(it->second, map);
+      _numAffected++;
+    }
+    _numProcessed++;
+  }
+
+  LOG_DEBUG("Removing points...");
+  LOG_VART(_nodeIdsConverted.size());
+  for (QList<long>::const_iterator it = _nodeIdsConverted.begin(); it != _nodeIdsConverted.end();
+       ++it)
+  {
+    RemoveNodeByEid::removeNodeFully(map, *it);
+  }
+}
+
+void PointsToPolysConverter::_addPolyFromPoint(const ConstNodePtr& point, const OsmMapPtr& map)
+{
+  // TODO: any way to consolidate some of this with  GeometryUtils::createMapFromBounds?
+
+  geos::geom::Envelope polyBounds(point->toCoordinate());
+  polyBounds.expandBy(_bufferSize);
+
+  NodePtr lowerLeft(
+    new Node(
+      point->getStatus(),
+      map->createNextNodeId(),
+      geos::geom::Coordinate(polyBounds.getMinX(), polyBounds.getMinY())));
+  map->addNode(lowerLeft);
+  NodePtr upperLeft(
+    new Node(
+      point->getStatus(),
+      map->createNextNodeId(),
+      geos::geom::Coordinate(polyBounds.getMinX(), polyBounds.getMaxY())));
+  map->addNode(upperLeft);
+  NodePtr upperRight(
+    new Node(
+      point->getStatus(),
+      map->createNextNodeId(),
+      geos::geom::Coordinate(polyBounds.getMaxX(), polyBounds.getMaxY())));
+  map->addNode(upperRight);
+  NodePtr lowerRight(
+    new Node(
+      point->getStatus(),
+      map->createNextNodeId(),
+      geos::geom::Coordinate(polyBounds.getMaxX(), polyBounds.getMinY())));
+  map->addNode(lowerRight);
+  _nodeIdsConverted.append(point->getId());
+
+  WayPtr poly(new Way(point->getStatus(), map->createNextWayId()));
+  poly->addNode(lowerLeft->getId());
+  poly->addNode(upperLeft->getId());
+  poly->addNode(upperRight->getId());
+  poly->addNode(lowerRight->getId());
+  poly->addNode(lowerLeft->getId());
+  LOG_VART(poly);
+
+  map->addWay(poly);
+}
+
+}