IsNodeAnimated (X3DObject) for nodes, AnimatedParameters (ProjectItem) for a
recursive search.
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> Behalf Of Alan Jones
> Sent: 08 April 2008 15:35
> To: XSI(at)Softimage.COM
> Subject: Re: [Sripting] The best way to figure out the bounds of an
> object's animation...
>
> Hi Dan,
>
> > I need to emulate the way XSI knows the total duration of an object's
> > animation when creating an action. I need the startframe and
> duration of
> > the object's animation, and I have no idea what may or may not be
> animated.
> >
> > Anyone know of any shortcuts? I couldn't see anything in the SDK, do
> I need
> > to make a temporary clip and take the info I need from that?
> >
> > That is also trickier than you'd think given the criteria I listed
> above
> > (i.e. not knowing what to mark - there could potentially be any kind
> of
> > constraint or property on the object...)
> >
> > ....and the fact that without giving the StoreAction Command an in or
> out
> > value, you get no clip anyway! So essentially, you need the value
> you're
> > looking for in order to find it!...
> >
> > SIStoreAction( null, null, 2, "temp_clip", false);
> >
> > I'm using Jscript.
>
> To me that sounds like it's bordering on not being doable. When you
> take into
> account inherited translation, expressions, constraints etc. You've
> have a hell of
> a lot of work to do traversing all the links recursively to find all
> animation. Plus
> add an Fc into an expression and there effectively is no end to when
> it's animated.
>
> I'd be looking for some what to place some kind of limit on the process
> in the
> pipeline. A point where something is defined. i.e. the scene options
> in rendering
> for duration (or checking through the preferences on every pass if you
> want to
> be a little more thorough). Then looping through getting the bounding
> box at each
> frame and expanding min/max vectors as necessary. Though remember even
> this
> may not be a true representation as at subframe detail it may move
> further.
>
> So it all really depends on what level of accuracy you require for the
> use you make
> of it in the end.
>
> Another idea that just came to me is to perhaps look at plot and see if
> it
> autocalculates anything of use you can nick.
>
> Cheers,
>
> Alan.
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