Ref T259, Ref T243 simulator environment provider

* access to elevation
* future: more data such as airport info

src/blackmisc/simulation/simulationenvironmentprovider.cpp

@@ -0,0 +1,73 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "simulationenvironmentprovider.h"
+
+using namespace BlackMisc::Geo;
+
+namespace BlackMisc
+{
+    namespace Simulation
+    {
+        bool ISimulationEnvironmentProvider::rememberGroundElevation(const ICoordinateGeodetic &elevationCoordinate, const PhysicalQuantities::CLength &epsilon)
+        {
+            {
+                QReadLocker l(&m_lockElvCoordinates);
+                if (m_elvCoordinates.containsObjectInRange(elevationCoordinate, epsilon)) { return false; }
+            }
+            {
+                QWriteLocker l(&m_lockElvCoordinates);
+                m_elvCoordinates.push_back(elevationCoordinate);
+            }
+            return true;
+        }
+
+        bool ISimulationEnvironmentProvider::rememberGroundElevation(const CElevationPlane &elevationPlane)
+        {
+            if (!elevationPlane.hasMSLGeodeticHeight()) { return false; }
+            return this->rememberGroundElevation(elevationPlane, elevationPlane.getRadius());
+        }
+
+        CCoordinateGeodeticList ISimulationEnvironmentProvider::getElevationCoordinates() const
+        {
+            QReadLocker l(&m_lockElvCoordinates);
+            return m_elvCoordinates;
+        }
+
+        int ISimulationEnvironmentProvider::cleanUpElevations(const ICoordinateGeodetic &referenceCoordinate, int maxNumber)
+        {
+            CCoordinateGeodeticList coordinates(this->getElevationCoordinates());
+            const int size = coordinates.size();
+            if (size <= maxNumber) { return 0; }
+            coordinates.sortByEuclideanDistanceSquared(referenceCoordinate);
+            coordinates.truncate(maxNumber);
+            const int delta = size - coordinates.size();
+            QWriteLocker l(&m_lockElvCoordinates);
+            m_elvCoordinates = coordinates;
+            return delta;
+        }
+
+        CElevationPlane ISimulationEnvironmentProvider::findClosestElevationWithinRange(const ICoordinateGeodetic &reference, const PhysicalQuantities::CLength &range)
+        {
+            return this->getElevationCoordinates().findClosestWithinRange(reference, range);
+        }
+
+        void ISimulationEnvironmentProvider::clearSimulationEnvironmentData()
+        {
+            QWriteLocker l(&m_lockElvCoordinates);
+            m_elvCoordinates.clear();
+        }
+
+        CElevationPlane CSimulationEnvironmentAware::findClosestElevationWithinRange(const ICoordinateGeodetic &reference, const PhysicalQuantities::CLength &range)
+        {
+            if (!m_simEnvironmentProvider) { return CElevationPlane::null(); }
+            return m_simEnvironmentProvider->findClosestElevationWithinRange(reference, range);
+        }
+    } // namespace
+} // namespace