/// <summary>
        /// Constructor
        /// </summary>
        public COBieXBimSerialiser(string fileName, ReportProgressDelegate progressHandler)
        {
            string fileNameDB = Path.ChangeExtension(fileName, ".xBIM");

            XBimContext         = new COBieXBimContext(XbimModel.CreateModel(fileNameDB), progressHandler);
            XBimContext.IsMerge = false;
            FileName            = fileName;
            MergeGeometryOnly   = true;
        }
        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="fileName">.xBIM file name and path</param>
        public COBieXBimSerialiser(string fileName)
        {
            string fileNameDB = Path.ChangeExtension(fileName, ".xBIM");

            XBimContext         = new COBieXBimContext(XbimModel.CreateModel(fileNameDB));
            XBimContext.IsMerge = false;
            FileName            = fileName;
            MergeGeometryOnly   = true;
        }
        /// <summary>
        /// Constructor
        /// </summary>
        public COBieXBimSerialiser(string fileName, ReportProgressDelegate progressHandler)
        {
            var fileNameDB = Path.ChangeExtension(fileName, ".xBIM");

            XBimContext = new COBieXBimContext(IfcStore.Create(fileNameDB, null, XbimSchemaVersion.Ifc2X3), progressHandler)
            {
                IsMerge = false
            };
            FileName          = fileName;
            MergeGeometryOnly = true;
        }