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Subject: RE: [cgmo-webcgm] ISSUE: visibility & interactivity at picture level


Hi Benoit,

see inline

> -----Original Message-----
> From: Benoit Bezaire [mailto:benoit@itedo.com]
> Sent: Monday, June 13, 2005 7:22 PM
> To: cgmo-webcgm@lists.oasis-open.org
> Subject: Re: [cgmo-webcgm] ISSUE: visibility & interactivity at picture
> level
>
>
> Hi Lofton,
>
> I tend to agree with you...
>
> For visibility, I don't really see why someone would want to make the
> entire picture invisible. So this one doesn't concern me very much.
set visibility of entire picture to off.
set visibility of one object to on.
I agree, this is for completeness only.

>
> For interactivity, if someone wanted to make the entire picture
> non-interactive, a script writer could do:
>
> var meta = objectId.getWebCGMMetafile();
> var pic = meta.pic;
> var nodes = pic.firstChild;
>
> while( nodes )
> {
>   nodes.setAppStructureAttr("interactivity","off");
>   nodes = nodes.nextSibling;
> }
>
> I think (personally) that this is an acceptable workaround for the
> WebCGM 2.0 timeframe.
Yes.

Let's resolve this in 2.1. ->add to requirements list for 2.1

Dieter

>
> --
>  Benoit   mailto:benoit@itedo.com
>
>
> Monday, June 13, 2005, 12:39:17 PM, Lofton wrote:
>
> LH>  From Dieter's comments:
> LH> http://lists.oasis-open.org/archives/cgmo-webcgm/200506/msg00021.html
>
> LH> ISSUE:  visibility   interactivity at picturelevel
>
> LH> 3.2.2.9
> LH> how do we state that visibility can be set at picture level?
>
> LH> 3.2.2.10
> LH> how do we state that interactivity can be set at picturelevel?
>
>
> LH> DISCUSSION.  We have three things to consider: 
> LH> WebCGM(metafile instances), DOM, XCF.
>
> LH> In WebCGM...  Since these are APS Attributes, it can't be
> LH> done in a straight forward manner.  You can achieve the effect (at
> LH> least for visibility, maybe for interactivity) by wrapping the
> LH> whole picture body in an APS.   Or apply the attributes to the
> LH> layers in a layered picture.  In DOM or XCF, not currently
> LH> possible.  Various solutions that come to mind -- for WebCGMs
> LH> and/or DOM and/or XCF --either violate CGM:1999, or create
> LH> incompatibility between the three functional areas, or are hacks.
>
> LH> This is not going to be a simple problem to solve cleanly. 
> LH> If it is not an *important* use case, it might be a good strategy
> LH> that we postpone the solution.
>
> LH> RECOMMENDATION:  don't try to solve it in 2.0.
>
> LH> Regards,
> LH> -Lofton.
>
>
>



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