FEM: Add EigenmodeFrequency property to result object

Signed-off-by: Przemo Firszt <przemo@firszt.eu>

src/Mod/Fem/App/FemResultObject.cpp

@@ -44,6 +44,7 @@ FemResultObject::FemResultObject()
     ADD_PROPERTY_TYPE(StressValues,(0), "Fem",Prop_None,"List of Von Misses strass values");
     ADD_PROPERTY_TYPE(Mesh,(0), "General",Prop_None,"Link to the corrresponding mesh");
     ADD_PROPERTY_TYPE(Eigenmode,(0), "Fem",Prop_None,"Number of the eigenmode");
+    ADD_PROPERTY_TYPE(EigenmodeFrequency,(0), "Fem",Prop_None,"Frequency of the eigenmode");
 }
 
 FemResultObject::~FemResultObject()

src/Mod/Fem/App/FemResultObject.h

@@ -55,6 +55,8 @@ public:
     App::PropertyFloatList StressValues;
     /// Eigenmode number
     App::PropertyInteger Eigenmode;
+    /// Eigenmode frequency
+    App::PropertyFloat EigenmodeFrequency;
 
     /// returns the type name of the ViewProvider
     virtual const char* getViewProviderName(void) const {