Re[4]: [cgmo-webcgm] Question about NVDC and APS attributes

[Lofton Henderson <lofton@rockynet.com>]

At 08:57 AM 12/2/2004 -0500, Benoit Bezaire wrote:
>Hi Dieter,
>
>Ok so according to you, there's only one; either viewContext or
>virtualViewContext.  That's fine with me.  I think it should be called
>'viewContext' even if it is expressed in NVDC.  virtualViewContext is
>confusing.

I agree with you.  After all, we don't call that other thingy "virtualRegion".

>Besides, we have that section in the spec which explains
>that NVDC coords are used in the WebCGM DOM.
>
>I can wait a bit, but if nobody can justify having both of them, I
>suggest that we drop one (virtualViewContext).

I suggest that we (you and I, spec editors) drop it now for the pre-telecon 
new WebCGM 2.0 draft.  If someone can demonstrate in the telecon that we 
have erred, then we can add it back.

Sound okay?

-Lofton.



>Thursday, December 2, 2004, 8:17:15 AM, Dieter wrote:
>
>DW> well....
>
>DW> I think that we decided to allow for setting a view context using a
>DW> setAttribute
>DW> call. The view context should be specified in NVDC to match all other
>DW> coordinates
>DW> used in the DOM context. So the view context became a virtual view 
>context.
>DW> I am not 100% sure, but that's my only recollection.
>
>DW> Dieter
>
>DW> -----Original Message-----
>DW> From: Benoit Bezaire [mailto:benoit@itedo.com]
>DW> Sent: Thursday, December 02, 2004 1:20 PM
>DW> To: CGM Open WebCGM TC
>DW> Subject: Re[2]: [cgmo-webcgm] Question about NVDC and APS attributes
>
>
>DW> Wednesday, December 1, 2004, 8:12:56 PM, Lofton wrote:
>
>LH>> At 04:04 PM 12/1/2004 -0500, Benoit Bezaire wrote:
> >>>[...]
> >>>Second, could someone explain to me what virtualViewContext means?
>
>LH>> Huh?  Where did this come from?  Is this something we invented in the
>LH>> post-Houston, 11/16 telecon?
>DW> I don't know where it came from; the only thing I remember is that you
>DW> and Dieter understood its meaning.
>
>LH>> I wonder if this is the "target rectangle" concept from section 3.2 of
>LH>> Dieter's object behaviors proposal, which we discussed in the telecon
>DW> right
>LH>> after Houston?
>DW> maybe?
>
>DW> --
>DW>  Benoit   mailto:benoit@itedo.com
>
>LH>>
>DW> 
>http://www.oasis-open.org/apps/org/workgroup/cgmo-webcgm/email/archives/2004
>DW> 11/doc00001.doc
>
>LH>> If so, then I'm pretty sure it should *not* be an ApsAttr.  Therefore,
>DW> it
>LH>> shouldn't be in the DOM.  Is this what you would call a "shadow DOM"
>LH>> entity?  I can see someone wanting to inquire it, possibly (but let's
>DW> make
>LH>> sure there is a strong use case, rather than adding more functions
>LH>> gratuitously).  It should not, however, be settable.
>
>LH>> -Lofton.