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From:	karl AT aspodata DOT se
To:	geda-user AT delorie DOT com
Subject:	Re: 3D data and support [WAS: Re: [geda-user] FOSDEM]
In-reply-to:	<1424000799.20046.1.camel@cam.ac.uk>
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Comments:	In-reply-to Peter Clifton <pcjc2 AT cam DOT ac DOT uk>
	message dated "Sun, 15 Feb 2015 11:46:39 +0000."
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Date:	Sun, 15 Feb 2015 17:36:30 +0100 (CET)
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Peter Clifton:
> On Sun, 2015-02-15 at 10:10 +0100, karl AT aspodata DOT se wrote:
> > Peter Clifton:
> 
> > > Having parts models in AP210 (and suitable code to handle them), I
> > > should be able to directly export a full 3D board + parts model for
> > > consumption by downstream tools. It will also be possible to embed
> > > faceted geometry representations that are simple enough for us to parse
> > > and render without heavy-weight CAD libraries. (Both faceted and BREP
> > > models can co-exist in STEP files).
> > 
> >  ap210 seems complex and unfortunately the standard is buried within ISO:
> 
> You are correct on both counts, although "buried within ISO" is solvable
> if you hand over 352CHF.

I know that part.

> Alternatively, your library or university might
> have a subscription to view ISO standards. (In the library in Cambridge,
> UK I can view BSI standards, which includes much of the original ISO
> 10303 (STEP) standard parts, which were adopted as British standards).
...

Maybe in the reference section, i.e. I can't borrow it home.

> Btw.. "seems complex" will seem like a grand understatement if you ever
> start looking at the standard. I'm still only scratching the surface of
> it myself, and I've been looking at this on and off for some time now.

What can I say after 30min browsing...

> The key is that we won't likely need to implement / use all of the
> standard.. it is quite broadly scoped, and at the moment, I feel there
> is quite a small sub-set we may find useful in the first instance.

Well, that is one of the hard parts, what to leave out.

///

If you want help with some small part of it, testing, etc., please
feel free to ask.

Regards,
/Karl Hammar

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