
IfcColumnTypeEnum
        
	 Definition from IAI: This enumeration defines the different types
		of linear elements an IfcColumnType object can fulfill:
 
	  
		- COLUMN: A standard column element usually used
		  vertically.
- USERDEFINED: User-defined linear element.
- NOTDEFINED: Undefined linear element
NOTE: This enumeration has been mainly
		introduced to allow further detailing of the type information in future
		releases of IFC.
	   HISTORY: New Enumeration in
		Release IFC2x Edition 2.  
 
EXPRESS specification:
        
          
            |  | 
                
                  | TYPE IfcColumnTypeEnum = ENUMERATION OF |  
                
                  |  | 
                      
                        | ( | COLUMN, USERDEFINED,
 NOTDEFINED);
 |  |  |