private static Dictionary <IFiniteElementNode, ForceVector> AddGravityLoad(PixelStructure structure, FiniteElementModel model) { Dictionary <IFiniteElementNode, ForceVector> map = new Dictionary <IFiniteElementNode, ForceVector>(); if (structure.GravityLoad != null) { if (structure.GravityLoad.Activated) { double amp = structure.GravityLoad.Amplification; map = model.AddGravityLoad(amp); } } return(map); }