internal XbimLocalPlacement(XbimDocument Document, XbimAxis2Placement3D axisToPlacement)
 {
     _document = Document;
     _localPlacement = _document.Model.Instances.New<IfcLocalPlacement>();
     _localPlacement.RelativePlacement = axisToPlacement._ifcAxis2Placement;
 }
 public void DefineReferenceSurfacePlane(XbimAxis2Placement3D position)
 {
     IfcPlane plane = Document.Model.Instances.New<IfcPlane>(pla => pla.Position = position._ifcAxis2Placement);
     // IfcSurfaceCurveSweptAreaSolid.ReferenceSurface = plane;
 }