Arguments

filename  (string) the name of the IFC file to be created

options  (integer) export options flags (combination of bit values); if omitted or 0, default IFC export options (see Settings) are used

1  export BaseQuantities
2  export entities on frozen & off layers
4  explode external references
8  export MultiPlies as aggregated objects

// these flags specify the target IFC version, exclusively, only 1 of these values can be used :
16  IFC2x3
32  IFC4
48  IFC4x1

entities  (list) optional, list of ENAMEs, specifies the entities to be exported; if omitted or NIL, all entities are exported

Return

T, if the IFC file is successfully created, or NILotherwise

Example

(bim:ifc-exportFile "D:/Test.ifc" (+ 1 2 4 16))    creates IFC2x3 file, including entities on frozen + off layers
(bim:ifc-exportFile "D:/Test.ifc" (+ 1 4 32))        creates IC4 file, excludes  entities on frozen + off layers

Remarks