private void FillWeldedLMirrored() { CrossSectionParameter css = new CrossSectionParameter(); css.Id = 5; css.Material = new ReferenceElement(openStructModel.MatSteel.First()); double B = 0.2; double D = 0.4; double t = 0.025; double rw = 0.004; double r2 = 0.002; double C = 0.0; bool mirrorZ = true; CrossSectionFactory.FillCssSteelAngle(css, B, D, t, rw, r2, C, mirrorZ); openStructModel.AddObject(css); }