public List <WallForceResult> GetPierForces(string PierName, string ComboName, PierPointLocation PierPointLocation, ModelUnits ModelUnits)
        {
            PierForceExtractor     ext = new PierForceExtractor(model);
            List <WallForceResult> f   = ext.GetPierForces(ComboName, PierPointLocation, ModelUnits);
            var thisPierForces         = f.Where(p => p.PierName == PierName).ToList();

            return(thisPierForces);
        }
        public List <WallForceResult> GetPierForces(string ComboName, PierPointLocation PierPointLocation, ModelUnits ModelUnits)
        {
            model = ETABSConnection.GetModel();
            PierForceExtractor     ext = new PierForceExtractor(model);
            List <WallForceResult> f   = ext.GetPierForces(ComboName, PierPointLocation, ModelUnits);

            model = null;
            return(f);
        }