implement getCurrent for some trivial components

Source/Components/Capacitor.cpp

@@ -72,3 +72,7 @@ void Capacitor::postStep(SystemModel& system) {
 	currr = mGcr * deltavr - mGci * deltavi - cureqr;
 	curri = mGci * deltavr + mGcr * deltavi - cureqi;
 }
+
+Complex Capacitor::getCurrent(SystemModel& system) {
+	return Complex(currr, curri);
+}

Source/Components/Capacitor.h

@@ -55,6 +55,9 @@ namespace DPsim {
 		
 		/// Recalculates variables detalvr, deltavi, currr and curri based on the simulation results of one time step
 		void postStep(SystemModel& system);
+
+		/// Return current from the previous step
+		Complex getCurrent(SystemModel& system);
 	};
 }
-#endif
\ No newline at end of file
+#endif

Source/Components/CurrentSource.cpp

@@ -19,3 +19,7 @@ void CurrentSource::applyRightSideVectorStamp(SystemModel& system) {
 void CurrentSource::step(SystemModel& system, Real time) {
 	this->applyRightSideVectorStamp(system);
 }
+
+Complex CurrentSource::getCurrent(SystemModel& system) {
+	return Complex(currentr, currenti);
+}

Source/Components/CurrentSource.h

@@ -19,6 +19,7 @@ namespace DPsim {
 		void applyRightSideVectorStamp(SystemModel& system);
 		void step(SystemModel& system, Real time);
 		void postStep(SystemModel& system) { }
+		virtual Complex getCurrent(SystemModel& system);
 	};
 }
 #endif

Source/Components/Inductor.cpp

@@ -80,3 +80,7 @@ void Inductor::postStep(SystemModel& system) {
 	mCurrRe = mGlr * mDeltaVre - mGli * mDeltaVim + mCurEqRe;
 	mCurrIm = mGli * mDeltaVre + mGlr * mDeltaVim + mCurEqIm;
 }
+
+Complex Inductor::getCurrent(SystemModel& system) {
+	return Complex(mCurrRe, mCurrIm);
+}

Source/Components/Inductor.h

@@ -60,6 +60,9 @@ namespace DPsim {
 		
 		/// Recalculates variables detalvr, deltavi, currr and curri based on the simulation results of one time step
 		void postStep(SystemModel& system);
+
+		/// Return current from the previous step
+		Complex getCurrent(SystemModel& system);
 	};
 }
-#endif
\ No newline at end of file
+#endif

Source/Components/LinearResistor.cpp

@@ -33,6 +33,5 @@ Complex LinearResistor::getCurrent(SystemModel& model) {
 		realVolt -= model.getRealFromLeftSideVector(mNode1);
 		imagVolt -= model.getImagFromLeftSideVector(mNode2);
 	}
-	Complex curr(realVolt*mConductance, imagVolt*mConductance);
-	return curr;
+	return Complex(realVolt*mConductance, imagVolt*mConductance);
 }