There lies the problem. A lot of us have no idea what STEP is capable of. Not having access to the spec/standard, a lot of new open source projects (that don't use Opencascade or BRLCad) reinvent the wheel. Dan On 4/6/10 5:55 AM, Lars O. Grobe wrote: > snip...... > Also please do not forget that the decision on success of a cad format > are not only about geometry. There are lots of specialized applications > going beyond that, and lots of approaches to achieve something that step > provides - a unified language to describe such additional entities. I am > from the building side and see IFC, the various proprietary formats, all > just to allow adding intelligence into the cad format that could be > supported by step in a compatible way. > > Still - I have no idea whether anyone ever worked on the 2d-part of step > in open source... > > Cheers, Lars. > > > > >