Added functions GetNumSensorChannels and HasSameSensorAnchor().

include/ITAPropagationModels/FilterEngine.h

@@ -92,7 +92,12 @@ namespace ITAPropagationModels
 		unique_ptr<ITABase::CHDFTSpectra> m_pAccumulatedSpectra; //!< Gathered propagation paths from list
 		unique_ptr<ITABase::CHDFTSpectra> m_pTempPropPathSpectra; //!< Single prop-path spectra
 
-		static struct m_DefaultValues
+		static struct m_DefaultReflectionModel //!< Default values for reflections
+		{
+			int iModel = 1;
+		};
+
+		static struct m_DefaultDiffractionModel //!< Default values for diffractions
 		{
 			int iModel = 1;
 		};

src/ITAPropagationModels/FilterEngine.cpp

@@ -22,20 +22,41 @@ CFilterEngine::~CFilterEngine()
 {
 }
 
-int CFilterEngine::GetNumSensorChannels(const ITAGeo::CPropagationPathList & oPathList)
+int CFilterEngine::GetNumSensorChannels(const ITAGeo::CPropagationPathList& oPathList)
 {
+	//Check for correct structur of oPathList
 	if(!HasSameSensorAnchor(oPathList))
-		ITA_EXCEPT1(INVALID_PARAMETER, "The propagation path list has more than multiple sensor anchors.");
+		ITA_EXCEPT1(INVALID_PARAMETER, "The propagation path list has more than multiple sensor anchors or last anchor of paths is not a sensor.");
 
-	int iNumChannels;
-	auto pPath = oPathList[0];
-	return 0;
+	//Cast the sensor that is always the last propagation anchor of a path
+	auto pSensor = std::dynamic_pointer_cast<ITAGeo::CSensor>(oPathList[0][oPathList[0].size() - 1]);
+
+	return pSensor->iNumChannels;
 }
 
-bool CFilterEngine::HasSameSensorAnchor(const ITAGeo::CPropagationPathList & oPathList)
+bool CFilterEngine::HasSameSensorAnchor(const ITAGeo::CPropagationPathList& oPathList)
 {
-	ITA_EXCEPT_NOT_IMPLEMENTED;
-	return false;
+
+	shared_ptr<ITAGeo::CSensor> pSensor = nullptr;
+
+	//Last anchor of the paths must be a sensor and always the same sensor
+	for (auto& oPath : oPathList)
+	{
+		if (oPath[oPath.size() - 1]->iAnchorType == ITAGeo::CPropagationAnchor::ACOUSTIC_SENSOR)
+		{
+			if (pSensor = nullptr)
+				pSensor = std::dynamic_pointer_cast<ITAGeo::CSensor>(oPath[oPath.size() - 1]);
+			else if (pSensor != oPath[oPath.size() - 1])
+				return false; // not the same sensor
+		}
+		else
+		{
+			return false; // last element not a sensor
+		}
+	}
+
+	//All paths end with the same sensor anchor
+	return true;
 }
 
 void CFilterEngine::ApplyAcousticModels(ITAGeo::CPropagationPathList & oPathList)