IntelliCAD e.g from AutoDSys can be used for modeling geometries for Odeon. IntelliCAD is a lighter and cheaper version of AutoCAD. We experience it as a better program for import in Odeon. IntelliCAD is usually avaliable in a Standard and a Professional edition, we recommend the professional edition which includes solid modeling (ASIC). To benefit from this program you need to be or become an experienced 3D CAD modeller. Please
contact us if you have any comments.