Re: gEDA-user: a different approach to 3D modeling

[Armin Faltl <armin.faltl@xxxxxx>]

Patrick Doyle wrote:
> On Thu, Nov 18, 2010 at 10:01 PM, kai-martin knaak <kmk@xxxxxxxxxxxxxxx> wrote:
>   
> > Looks like there is no open 3D exchange format that fits the
> > need of pcb:
> >
> > a) render a beautiful image of a populated board
> >
> > b) integrate pcb in a 3D work-flow to fit the board into some
> > tight space.
> >
> > The existing formats are either limited to surfaces rather than objects
> > (STL, VRML). This prevents efficient processing of the 3D geometry.
> > Or they lack attributes for eye candy (IGES). Or they are overly
> > complex and geared to completely different use cases (STEP)
> >     
> Not knowing anything of which I speak (write?), would COLLADA
> (https://collada.org/mediawiki/index.php/COLLADA_-_Digital_Asset_and_FX_Exchange_Schema)
> fit the bill? 
Reading

https://collada.org/mediawiki/index.php/COLLADA_FAQ#What_is_COLLADA.3F

I believe COLLADA is a format mainly concerned about DCC (digital 
content creation).
It's probably very good at meshes, textures and some freeform surfaces,
but I didn't see anything about geometric primitives like spheres, cylinders
dimensions and layers. Don't confuse "rigid body" with "solid geometry".
Maybe my view is to pessimistic, but one needs to read the spec to prove.



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