hy. I'm still creating an ifc importer (see http://www.buildingsmart.com/bim) I have a surface rappresentation of an extrude solid with the section (sweep solid representation), the extrude direction and the depth of the extrusion. All works fine. the problem is that from the file that i would import I have also a brep representation , that export all the surface of a solid ,each object that i must import have n faces. How i can import a complete filled solid and not a set of surfaces. Is possible to select an extrude face from one of a brep model representation? how? I have the axis placements if that can help by

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nobody?