v0.2.54..v0.2.55 changeset MapUtils.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/elements/MapUtils.cpp b/hoot-core/src/main/cpp/hoot/core/elements/MapUtils.cpp
new file mode 100644
index 0000000..51a48ba
--- /dev/null
+++ b/hoot-core/src/main/cpp/hoot/core/elements/MapUtils.cpp
@@ -0,0 +1,71 @@
+/*
+ * 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) 2020 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+
+#include "MapUtils.h"
+
+// Hoot
+#include <hoot/core/util/HootException.h>
+#include <hoot/core/util/Log.h>
+#include <hoot/core/ops/CopyMapSubsetOp.h>
+#include <hoot/core/visitors/ElementCountVisitor.h>
+#include <hoot/core/visitors/FilteredVisitor.h>
+#include <hoot/core/criterion/PointCriterion.h>
+#include <hoot/core/visitors/RemoveUnknownVisitor.h>
+
+namespace hoot
+{
+
+OsmMapPtr MapUtils::getMapSubset(const ConstOsmMapPtr& map, const ElementCriterionPtr& filter)
+{
+  CopyMapSubsetOp wayCopier(map, filter);
+  OsmMapPtr output(new OsmMap());
+  wayCopier.apply(output);
+  return output;
+}
+
+bool MapUtils::mapIsPointsOnly(const OsmMapPtr& map)
+{
+  std::shared_ptr<PointCriterion> pointCrit(new PointCriterion());
+  pointCrit->setOsmMap(map.get());
+  return
+    (int)FilteredVisitor::getStat(
+      pointCrit,
+      ElementVisitorPtr(new ElementCountVisitor()), map) == (int)map->getElementCount();
+}
+
+void MapUtils::splitMapByStatus(
+  OsmMapPtr& sourceMap, OsmMapPtr& unknown1Map, OsmMapPtr& unknown2Map)
+{
+  RemoveUnknown1Visitor remove1Vis;
+  RemoveUnknown2Visitor remove2Vis;
+  unknown1Map.reset(new OsmMap(sourceMap));
+  unknown1Map->visitRw(remove2Vis);
+  unknown2Map.reset(new OsmMap(sourceMap));
+  unknown2Map->visitRw(remove1Vis);
+}
+
+}