hello, I was using Open Cascade 3.1 for import IGES files and analysis geometry (get faces,lines,points). With 3.1 version, it was ok but I install the 4.0 version : now the import file is ok but when I want to get the faces ( TopExp_Explorer (TopAbs_FACE),then BRep_Tool::Surface ) it crashes at BRep_Tool::Surface because no type is affect to the shape. Can you help me. Thank you.
problem with 4.0