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

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

            XBimContext = new COBieXBimContext(XbimModel.CreateModel(fileNameDB))
            {
                IsMerge = false
            };
            FileName          = fileName;
            MergeGeometryOnly = true;
        }