Spending a polygon id for reflection and diffraction anchors

include/ITAGeo/Base.h

@@ -312,11 +312,14 @@ namespace ITAGeo
 		{
 			iAnchorType = CPropagationAnchor::SPECULAR_REFLECTION;
 			v3FaceNormal.SetToZeroVector();
+			iPolygonID = -1;
 		};
+
 		inline CSpecularReflection(const VistaVector3D& v3SpecularReflectionPoint)
 			: CPropagationAnchor(v3SpecularReflectionPoint)
 		{
 			iAnchorType = CPropagationAnchor::SPECULAR_REFLECTION;
+			iPolygonID = -1;
 		};
 
 		inline virtual ~CSpecularReflection() {};
@@ -329,13 +332,14 @@ namespace ITAGeo
 		void LoadFromJSONString(const std::string& sContent, std::shared_ptr< CResourceManager > pResourceManager = nullptr);
 
 		VistaVector3D v3FaceNormal; //!< Face normal of reflection plane
+		int iPolygonID; //!< Identifier of polygon in mesh
 
 		std::shared_ptr< Material::IMaterial > pMaterial; //!< Acoustic material connection, i.e. absorption coefficient
 	};
 
 	//! Geometrical propagation anchor of the detection point inside the receiver's detection volume
 	/**
-	  * A detection point
+	  * A detection point (used for sphere receivers in ray tracing algorithms)
 	  */
 	class ITA_GEO_API CDetectionPoint : public CPropagationAnchor // public CPropagationAnchor
 	{
@@ -521,6 +525,8 @@ namespace ITAGeo
 		VistaVector3D v3VertextEnd;
 		VistaVector3D v3MainWedgeFaceNormal;
 		VistaVector3D v3OppositeWedgeFaceNormal;
+		int iMainWedgeFaceID;
+		int iOppositeWedgeFaceID;
 
 		CITADiffractionWedgeApertureBase();
 		virtual inline ~CITADiffractionWedgeApertureBase() {};

tests/PropagationPathsTest.cpp

@@ -13,6 +13,7 @@ int main( int, char** )
 	auto pReflection = make_shared< CSpecularReflection >();
 	pReflection->v3InteractionPoint.SetValues(-0.5f, -1.0f, -2.0f);
 	pReflection->v3FaceNormal.SetValues(1.f, 0.f, 0.f, 0.f);
+	pReflection->iPolygonID = 0;
 
 	auto pReceiver = make_shared< CSensor >();
 	pReceiver->v3InteractionPoint.SetValues(-1.0f, -2.0f, -3.0f);