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#23 NURBS, B-Spline, NMG
Hi,
I'm very new at using BRL CAD. I did read the manual, but couldn't find any information about how to use more complex geometry like B-SPLINE, NURBS and NMG. It seems there is nothing in the manual about it and I couldn't find any obvious menu-item in MGED.
Can anyone give me a hint on this? Does anyone know where I can find more documentation?
Thanx.
Gijs
Ps. I use vs. 7.12.2
Gijs,
There's limited documentation on using those more complex geometry types for a couple of reasons. The editing facilities and user interface for manipulating those three in particular are very basic. It's not something you're going to want to do (as a user) on a day-to-day basis without someone improving the editing tools some more. Most of their provided implementation is for import/export in support of other CAD packages.
Depending on what you're trying to do, there is almost always an alternative way of editing that is preferred over directly editing nurbs/nmg/bots using other implicit primitives. Probably not the answer you were looking for, but hopefully explains things nonetheless.
Cheers!
Sean
It's also probably worth pointing out that we're currently working on a renewed implementation of full BREP/NURBS support that (eventually) includes interactive editing support. That is something I expect may get finished up in either late 2009 or 2010 at the latest. That's just a rough guess giving current developer resources and other competing priorities unless more developers show up to work on NURBS. Our first priority is ray-tracing, then conversion support, then visualization/tessellation support, then editing support.
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