So I am using IES VE (http://www.iesve.com/content/default.asp?page=) to perform energy analysis on a building. The problem is architects don't use SketchUp the way that the plugin for IES works. They model the walls as 3d walls instead of as planer surfaces. What would be the easiest (fastest) way to convert these models to flat planer surfaces. The tools I have available outside of SketchUp include Revit MEP 2010 and AutoCAD MEP 2010. I mention AutoCAD because a 2d floor plan as a DXF (still only wall centerlines) will also work for me.

Any suggestions would be greatly appreciated.

Thanks,
David Raynor