Hi Dirk, hi Rasmus, On Tuesday 14 September 2004 15:59, Dirk Reiners wrote: > Hi Rasmus, > > On Tue, 2004-09-14 at 04:34, Rasmus Agerholm wrote: > > Hi All > > > > Has any of you worked with CAD output like STEP or IGES? > > Matthias has worked at a STEP company some time ago, but I think that > was unrelated to OpenSG.
Yes, that was right, but I did not work on the CAD side of STEP but the PDM side. STEP CAD files are huge text files and there are special toolkits (libraries) available to parse them. If I remember correct the structure of the scene is somewhat backwards compared to a normal rendering scene graph ( a child knows its parent, but a parent does not have a direct connection to its child. You end up writing code with STEP libraries, like give me all nodes whichs parent id is xyz). Writing an importer without those extra toolkits might be not a very easy task I suppose. > > Preferably imported such data into OpenSG ;-) > > I'm not aware of anybody having done something like that. But if there > is somebody, I'd definitely like to know! > > > I don't know much about these formats other than they are widely used in > > the CAD/Building world. > > STEP is meant to be the model standard to end all model standards. > That's why the description fills a couple linear meters on a typical > bookshelf... Writing a STEP converter is a serious task, and some > companies live off just doing that. agreed :) AFAIK there are no CAD converters availble for OpenSG at the moment. STEP and IGES deal with a whole lot of different parametric entities which would have all to be mapped into OpenSG NURBS nodes. Not a fun job either :) Regards Matthias ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
